microcode-ill - hitachi rail · microcode-ill microprocessor-based coded track circuit system...

SERVICE MANUAL 6391

Installation, Operation and Maintenance

MICROCODE-Ill

Microprocessor-Based Coded Track Circuit System

~Ullll CORPORA TE ORIV~

F->1nsBuHGH. PA' 15231

for

CAB-ONLY OR CAB AND WAYSIDE SIGNALING SYSTEMS:

Color Light Signals Searchlight Signals

Position light Signals Color Position Light Signals

UNIT PART NO. N451667-2XXX

· August. 1989 A-08/89· 75-2850-1

ID221F, 0222F

r:1 Jl-'l'Hl(il 11 1 '.J!l!J. l ltJU)N •,;w1 rr;, f I!. 511.iNAI JN(; PBINll 1• INUSA

,\EVISION INDEX

Revised pages of this manual are listed below_ by part number and date of revision.

Page No. Rev. Date Page No. Rev. Date

Section

I GENERAL 1. l 1.2 1. 2 .1 l. 2. 2 I. 2. 3 l.2 .4 1.2 .5 1.2.5.1 1.2.5.2 1.2.5.3 1.3 1. 3 .1 1.3.1.1 1.3.1.2 1.3.1.3 1.3.1.4 l • 3. 2 1.4 1.5 1. 6 I. 6 .1 1. 6 .2 1. 6. 3 1. 6 .4 1.6 .5 1. 7 1.8 1.8.1 1. 8.2

1. 8. 3 1. 8 .4 1. 8. 5 1.8.5.1 1.8.5.2 1.8.5.3 1. 8. 6

II SYSTEM 2. 1 2.2 2.2.1 2.2.2 2.2.3 2.3 2. 3. 1 2.3.2 2.3.2.l

2.3.2.2

CONTENTS

INFORMATION 1-1 INTRODUCTION 1-1 OPERATION: GENERAL DESCRIPTION 1-l Unit Operation 1-1 Track Interface Overview 1-1 Executive Microcomputer overview 1-l Keypad and LCD Funtions l-2 signal Direct Drive Functions 1-2 signal Drive Power l-2 Fai lover Ori ve Power 1-2 Serial Interface Circuitry 1-2 SPECIFICATIONS 1-2 Electrical 1-2 Battery l-2 Track 1-3 Logic Output Drive l-4 Serial Interface 1-4 Environmental Specifications 1-4 GENERAL OPERATING FEATURES 1-5 PHYSICAL DIMENSIONS l-6 HIGH CARDFILE COMPONENTS l-9 PCB cardfile 1-9 Keypad/Display Panel 1-9 Power-Off Switch Panel 1-9 AAR Panel 1-9 Local I/0 Panel 1-9 LOW CARDFILE COMPONENTS 1-11 GENERAL DESCRIPTION OF PCB TYPES 1-13 system Power Supply (N451666-1001) 1-13 Executive serial and Executive Logic (N451666-200l 1-13 and -2002) Logic I/0 (N451666-3001 and -3002) 1-13 conditional Power Supply (CPS) (N4516661-0l01) 1-13 cab Track I/0 Subsystem 1-14 Cab Track controller PC3 (N451666-4101) 1-14 cab communication Amplifier ?CB (N45l666-510l) 1-14 cab Amplifier PCB (N451666-5201) 1-14 surge Suppressor N451666-6001, -61Q1, -6102) l-14

HARDWARE CONVENTIONS 2-1 GENERAL DESCRIPTION 2-1 INTERLOCKING OR TIE-IN LOCATIONS 2-1 Relay Interface with Double-Ended Unit Relay Interface with Single-Ended Unit serial I/0 Interface With oo,1ble-Ended Unit INTERMEDIATE SIGNAL LOCA'l'IQt!'.;

2-l 2-3 2-5 2-6

Intermediate Cab Generation

CONTENTS (Cont'd)

Section

2.1.2. 3

2.3.1

2.3.3.1 2.3.3.2

2.3.3.3 2.3.3.4 2.3.3.5

2.3.3.6

Tnt·,~rmerli0te Cah Only Location wi: h T.Pft· .:1nri Hi•Jhl 7.-q Loc~l I/0 Intermediate Location With Cab Si·1nal Generation and 2-\0 Wayside Signals One Signal in Each Direction 2-10 One Signal in Each Direction With ~lectri.c Lock 2-ll and/or Local I/0 connections for Auxillary Track Codes Approach Signal In One Direction 2-12 Double Approach With Switch Electric Lock 2-13 Intermediate Location in Cab and Wayside Signa.,s 2-14 System With NWP Only Intermediate Location In Cab anct Wayside Si')na'. 2-15/16 System With Electric Switch Lock and/or Auxill~ry I/0

III SIGNAL SYSTEM OPERATION 3-1

3.1 INTRODUCTION 3.2 TRACK DATA BIT DESIGNATION 3.3 SIGNALING BIT MAPPING LOGIC I/0 TO/FROM TRACK

DATA BITS 3.3.1 3.3.l.l 3.3.1.2 3.3.1.3 3. 3. 2 3.3.2.1 3.3.2.2 3.3.2.3 3.4 3.5 3.6 3.6.1 3.6.2 3.6.3 3.6.4 3.7

Cab Generation Only Signaling Data Auxiliary Track Codes Programable Functions of Auxiliary Codes Cab Generation With Wayside Si

CONTENTS (cont'd)

Section

5.5 5.5.1 5.5.2 5.5.2.1 5.5.2.2 5.5.3 5.6 5.6.1 5.6.2 5.6.3 5.6.4 5.6.4.1 5.6.4.2 5.7

SOFTWARE FUNCTIONS Executive Software Application Software Introduction Signal Functions In Standard Application Software Question Table Operation SERIAL INTERFACES Introduction MICROCODE-III/MICROLOK Serial Cables MICROCODE-III/MICROCODE-III Serial Cables Interface Configurations EIA RS-423 20 mA Current Loop O.S. TRACK CIRCUIT APPLICATIONS - SUPPf,EMENTAL INFORMATION

5-23 5-23 5-23 5-23 5-25 5-27 5-32 5-32 5-32 5-32 5-33 5-33 5-35 5-37

VI INSTALLATION 6-1 6-1 6-1

VII

6.1 UNIT MOUNTING AND ENVIRONMENT 6.2 6.3 6.3.1 6.3.2 6.3.3 6.4 6.5 6.6 6.6.1 6.6.2 6. 6. 3 6.6.4 6.6.5 6.7

6.7.1 6.7.2

GENERAL WIRING PRACTICES OPERATING POWER 6-J Source 6-1 Wiring and surge Protection 6-1 Unit Grounding 6-2 TRACK CONNECTIONS - WIRING AND SURGE PROTECTION 6-2 SYSTEM PCB INSTALLATION 6-4 SIGNAL AND/OR RELAY LOGIC INTERFACE 6-4 General 6-4 Selecting Logic A or B 6-5 Wiring 6-5 Output Loading 6-5 Standard I/0 Mapping 6-7 UNIT POWER-UP AND PROGRAMMING LOCATION-DEPENDENT 6-ll VARIABLES Introduction Keypad Programming [Configure Mode)

6-11 6-13

FIELD MAINTENANCE 7-1 7-1 7-1 7-2 7-2 7-2 7-4 7-10 7-10 7-12 7-12 7-14 7-14 7-15 7-18

7.1 7.2 7.3 7.3.1 7.3.2 7.4 7.5 7.5.1 7.5.2 7.5.3 7.5.4 7.5.4.1 7.5.4.2 7.5.4.3

GENERAL GUIDELINES PERIODIC INSPECTION, CLEANING GENERAL PCB REPLACEMENT PROCEDURES Plug-In PCB's Display PCB N451668-9201 LED DISPLAYS AND TEST JACKS REVIEW AND DIAGNOSTIC ?ROGRAMS (Via Keypad and LCD) Initial Installation and Entry Into Operate Mode Operate Main Menu Entering Operate Mode Sub-Modes Troubleshooting Procedures [Ising Keypad/Display Unit Shut Down With Too Many Faults Unit Operating Troubleshooting Using View Data Mo~e

iii

Section

7.5.5 7.5.6 7.5.7 7.5.8

7.6 7.7 7.7.1 7.7.2 7.8

APPENDIX A

A.l A. 2 A. 3 A. 3.1 A.3.2 A.3.3 A.3.4 A. 4 A.4.1 A.4.2 A.4.3 A.5

APPENDIX B

B. l

B. 2

8.3

8.4 B. 5

APPENDIX c

CONTENTS (Cont' (1)

Pa,_1f!

Test Mode (Detailed Operation) 7-:J syrnhol Interpretation 7-2 3 complete Options Listing 7-24 Complete Error Messages anO Corrective Actions 7-26 Listing MICROCODE-III TO MICROLOK SERIAL LINK TROUflLESHOO'!'ING 7-47 EXECUTIVE PCBS TROUBLESHOOTING 7-47 Executive Serial PCB N451666-200J 7-47 Executive Logic PCB N451666-2002 7-48 SYSTEM POWER SUPPLY PCB (N451666-1001) 7-48 TROUBLESHOOTING

PARTS LIST

CAB SIGNAL UNITS PRINTED CIRCUIT BOARDS EPROMS Executive Serial PCB N451666-2001 Executive Logic PCB N451666-2002 Cab Track controller PCB N451666-400l, -4101 Display PCB N451668-9201 COMMUNICATIONS CABLES MICROCODE-III to MICROLOK - EIA RS-423 MICROCODE-III to MICROCODE-III - PIA RS-423 Internal INSTALLATION HARDWARE

CURRENT EXECUTIVE SOFTWARE REVISIONS

EXECUTIVE SERIAL PCB N45l666-2001 - EXECU'l'TVE

SOFTWARE

A-1 A-·;

A-3 A-1 A-4 11-4 1\-4 11-4 A-4 A-5 A-5 11-5

B-1

EXECUTIVE LOGIC PCB N451666-2002 - LOGIC SUBSYS'rEM B-1

SOFTWARE EXECUTIVE AND SERIAL LOGIC PCBS - APPLICATION SOFTWARE CAB TRACK CONTROLLER PCB N451666-4001, -4101 SOFTWARE REVISION NOTIC'E DOOR TAG

APPLICATION NOTES

iv

B-1

3-1 B-2

Figure

1-1

1-2

1-3

1-4

1-5

1-6

2-1

2-2

2-3

2-4

2-5

2-6

2-7

2-8

2-9

2-10

2-11

2-12

2-13

ILLUSTRATIONS

High Cardfile - Intermediate Signal or Cab Only with NWP and/or WL, or End with Relay Interlocking Logic

Low Cardfile - Intermediate Cab Only or End with MICROLOK Serial Port

High cardfile Perspective View

Low Cardfile Perspective View

General Arrangement of Unit

System Block Diagram

Control Point or Tie-In With Relay Interface -Double Ended

Control Point or Tie-In With Relay Interface -Single Ended

Controlled (End) Point Using Interface to MICROLOK for Local I/0 Logic (Double Sided)

Intermediate Location With cab, Using No Local I/O

Intermediate Location With Cab, Using Auxiliary I/0 or Switch I/0 (Example #1)

Intermediate Location With cab, Using Auxiliary I/0 or Switch I/0 (Example #2)

Intermediate Location With cab, Using Auxiliary I/0 or Switch I/0 (Example #3)

Intermediate Location - One Signal in Each Direction

Intermediate Location - One Signal in Each Direction With Auxiliary Logic I/0

Intermediate Signal Location - Approach

Intermediate Signal Locatioa - Double Approach (Example U)

Intermediate Signal Location - Do11ble Approach (Example #2)

Intermediate Signal Location - Double Approach (Example #3)

v

1-7

1-8

1-10

1-11

1-12

1-15/16

2-2

2-4

2-5

2-6

2-7

2-8

2-9

2-10

2-11

2-12

2-13

2-14

2-15/16

Figure

3-l

3-2

3-3

3-4

3-5

3-6

3-7

3-8

3-9

3-10

3-11

3-12

3-13

. 4-1

4-2

5-1

5-2

5-3

5-4

5-5

ILLUSTRATIONS (Cont'd)

Track Message Encoding - Cab-Only Syst

Figure

5-6

5-7

5-8

5-9

5-10

5-11

5-12

5-13

5-14

5-15

5-] 6

5-17

5-J.8

5-19

5-20

5-21

5-22

5-23

5-24


Typical Searchlight Application, Left Side Approach 5-7 Location (Cab with Wayside or Wayside Only)

Typical Color Light Application, Intermediate Location 5-8 (Cab with Wayside or Wayside Only)

Typical color Light Application, Side "A" (Left) APH 5-9 Interface (Cab with wayside or Wayside Only)

Typical color Light Application, Side "B" (Right) APH 5-10 Interface (Cab with Wayside or Wayside only)

Typical Position Light Application, Intermediate Location 5-11 (Cab with Wayside or Wayside Only)

Typical Position Light Application, Approach Location 5-12 (Cab with Wayside or Wayside Only)

Typical Electric Lock Application, Right Side Switch 5-13 (Cab Signal Only)

Typical Electric Lock Application, Left Side Switch 5-14 (Cab Signal Only)

Typical Electric Lock Application, Left Side Switch 5-15 (Cab with Wayside)

Typical Electric Lock Application, Right Side Switch 5-16 (Cab with Wayside)

Searchlight Intermediate Units - Cross Feeding Approaches 5-17 (Cab with Wayside or Wayside Only)

General configuration of Units 5-19

Executive and Application Software EPROMs 5-24

NWP (Hand Throw Switch) Operation - Reference Diagram 5-25

Electric Lock Release Switch Location - Reference Diagram 5-26

"Daisy-Chained" MICROCODE-III Units - EIA Communications 5-34

Display PCB Jumpers 5-35

"Daisy-Chained" MICROCODE-II! Uni ::s - C.L. Communications 5-36

Typical End Of Siding with MICROCODE-III Used to Generate 5-37 Cab in o.s. Tracks

vii

Figure

5-25

6-1

6-2

6-3

6-4

6-5

6-6

7-1

7-2

7-3

7-4

7-5

7-6

7-7

7-8


Typical Crossover with MICROCODE-III Osen to GeneratP. Cab in o.s. Tracks

AAR Terminal Strip Wiring

Front Connector Panel and Surge PCB/Loqic PCB Cable

Standard I/0 Mapping for Searchlight Signals, With Cah

Standard I/0 Mapping for Color or Position Light Signals, With Cab

Standard I/0 Mapping for Cab-Only Appl i.cations

Executive and Application Software EPROMs

Display PCB Removal

General l\rrangement and Functions of System LEDs an:1 Test Jacks

System Power Supply PCB LEDs and Test ,lacks

Conditional Power Supply PCB LED and Test Jacks

Executive Serial and Executive Logic PCB LED(s)

Logic I/0 PCB LED

Cab Track Amplifier PCB LEDs and Adjustments

Keypad Operation

\Ji ii

5-18

6-3

6-fi

6-8

6-1 0

6-12

7-3

7-5

7-6

7-7

7-8

7-8

7-9

7-11

1.1 INTRODUCTION

SECTION I GENERAL INFORMATION

MICROCODE III is a microprocessor-based solid-state track circuit system designed to work in non-electrified railroad territory. MICROCODE III provides track communication of all signal information as well as four spare track codes as detailed in Section III. MICROCODE III (Cab Version) includes the logic to determine the appropriate cab code to transmit for the various signaling conditions, and the hardware to deliver "hi-energy• coded 100 Hz carrier to the track circuit. The cab amplifier will deliver sufficient cab signal to have 2 amps of cab signal current at the entering end with a maximum track circuit length of 8000 feet. It also provides broken rail protection and broken down insulated joint protection.

1.2 OPERATION: GENERAL DESCRIPTION

l.2.1 Unit Operation

A MICROCODE III Cab Unit can be used to control two ends of track circuits at intermediate and end (control point) locations. It can be used to supply cab code to the rails inside the interlocking, but should not be used for vital shunt detection for the O.s. circuits; refer to the detailed application information in Section v. Intermediate locations can also direct drive signals with the appropriate PCB's and application software.

1.2.2 Track Interface Overview

The MICROCODE III cab unit track interface cab signal transmitter is connected to the rails through a 100 hz bandpass filter to provide sufficient impedance to overlay equipment above 500 Hz. The cab amplifier output impedance is not high enough to afford compatibility with motion and constant warning time predictor highway crossing protection systems. Track circuit communication is carried via two signals: an information channel that is full-duplex and a broken rail detection signal that is half-duplex. (Refer to section III for detailed operation of track circuit systems.)

1.2.3 Executive Microcomputer overview

The executive microprocessor continually performs diagnostics on all of MICROCODE III circuitry and removes output drive power (via shut down of the CPS) in the event of any circuit failure that would result in improper outputs being energized. These "Faults", as well as abnormal events such as noise or any intermittant circuit operation, are recorded by the executive microprocessor. They can be recovered ("read") via the key pad and LCD (liquid crystal display) to facilitate quick location of failures. This minimizes maintenance time required to put·. failed units back in service. Failure data is presented in english text (i.e. "HARDWARE FAILURE LOGIC R "BRD). Refer to Section VII for complete listing of all failure data.

6391, p. l-1

1.2.4 Keypad and LCD Funtions

The Keypad and LCD are also used to monitor normal system information such as track codes received/transmitted, logic I/0 input/output etc. The Keypad and LCD also provides the means for field programming location ilependent parameters such as stick enable, approach/ steady lighting, signal upgrading etc. Therefore only 2 different EPROM'S are required for any given system: one for end units and one for intermediate signal locations.

1.2.5 Signal Direct Drive Functions

MICROCODE III units can direct drive Color light, Search light and Position light signals. Hot and cold filament checks and stuck search light mechanism checks are provided internally, and automatically result in signal tumble-back when a signal malfunctions.

1.2.5.1 Signal Drive Power

Signal light drive power is a regulated 12.6 volts from the conditional ?ower supply (CPS) for enchanced life of signal lamps, as well as constant lig'1t intensity over a wide range of battery voltage.

1.2.5.2 Failover Drive Power

Internal circuitry is provided to light the Red aspect in the event of system failure.

1.2.5.3 Serial Interface Circuitry

RS-432 or 20 mA current loop circuitry is proviiled for a link between MICROCODE III Units and MICROLOK where MICROLOK is used to perform the vital .interlocking logic. This minimizes MICROCODE I1I hardware as shown in Figure 2-3 on page 2-6.

1.3 SPECIFICATIONS

1.3.l Electrical

l.3.l.l Battery

Voltage: 12.6 Vdc nom.

Operating Range: 9.8 to 16.2 Vdc

Maximum Ripple: 0.5',f P.P.

Charger: Constant Voltage

6391, p. 1-2

surge Suppression:

Lead Size:

current:

1.3.1.2 Track

Length:

surge Protection:

Primary: 25 Amps use USSPll N451552-0504

Secondary: Common Mode Filter N451552-J.001

5KP16A Transzorb and .22 mFd 50V capacitor mounted on MICROCODE AAR battery terminals.

Sufficiently low enough to have a maximum of 0.2 v drop at maximum current. Refer to installation on page ?-? •

Cab Only:

Nominal: @ 13.2 battery= amps 8000 ft. track circuit and 3 ohm/1000 ft. ballast and low battery

With Signals:

Cab requirements (above)+ (Lamp load (amps/ .65))

Nominal 8,000 ft. max. at 3 ohm/1000 ft. ballast and 118 lb. welded rail.

Primary: USGA (Qualified*) Low Voltage arrester N451552-0101 (Blue) as equalizer (across track leads). USGA High Voltage arrester N451552-0201 (Red) each rail to earth ground.

Secondary: Track surge Suppressor TSS-101 N451552-0901 in each set of track leads mounted as close as possible to the MICROCODE III unit.

* Qualified USGA "Blue• arresters (N451552-0101) have been factory tested to work with microprocessor-based equipment. Qualified "Blues• have a green line on the top and bottom of the plastic dust cover so as to be clearly visible on units as they are installed on in the field.

6391 , p. J -3

Noise Suppression:

Lead Length:

1.3.1.3 Logic Output Drive

Isolation:

Lamp:

Relays:

surge Suppression:

1.3.1.4 Serial Interface

Application:

communication Modes:

1.3.2 Environmental Specifications

Temperature Range:

Humidity:

Physical Loads:

Common Mode Filter CMF-101 N451552-1001 in each set of track leads mounted as close as possible to the MICROCODE III unit.

500 ft. max., #6 twisted pai~.

Fully isolated lamp or relay drive.

12.6 Vdc nominal, regulated

50 Wat ts/output

150 Watts maximum from unit.

Internal hot and cold filament check. nRedn output energized when unit is off or failed.

12 Vdc Nominal

::>150 ohm coil with drop out voltage >1.8 Vdc.

Provided internally. (Note: Refer to Appendix c, Application Note 502-MCD3-3).

Standard in all units

EIA RS423 up to 50 ft. 20 mA current loop for distances greater than 50 ft. up to 10,000 ft. loop with 6 units, max.

95% non-condensing humidity

G v•bration and shock. 1.0 G RMS, 0.2' displacement 1.4 G pea~ 5 - 1000 Hz

6391, p. 1-4

1.4 GENERAL OPERATING FEATURES

Adjustments:

Track Codes:

Keypad-Selectable Functions: *Protected with access security code

PCB Interchangeability:

Logic I/0 PCB:

Track circuit: Track Length

Lamp/relay outputs: Programmed from keypad when installed. Remove jumper on I/0 Surge Suppression PCB for relay outputs.

Cab current: Pot adjustment on Cab Amplifier PCB (-5201) for each track circuit.

256+

1. Lamp/relay output

2. Approach/Steady signal lighting internal power off detection

3. Stick enable (both directions)

4. Auto upgrading (both directions): H H H FH H D FH - FH

FH - D

5. Block initiate/repeat (both directions)

6. Auxillary codes I/0 or repeated each independently in both directions

7. NWP break aux codes independently both directions

8. WL timer O to 16.6 mins. in 1 sec. increments

* one EPROM on Executive board

N451666-3001: 50 Watts per output N451666-3002: Si-Polar outputs Internal Hot & Cold filament check Red signal lit (failover during reset and shutdowns)

6391, p. 1-5

Misc. Features:

Misc. Information:

1.5 PHYSICAL DIMENSIONS

Motion/Overlay compatible (no external blocking units)

Internal secondary surge suppression on all Logic I/0

Clear text diagnostics display

Internal mech check for searchlight ~ignals.

Transzorb: 5KP16A - US&S J792735-00l0

Signal Blocking Diodes: MR756 - US&S J726150-0186

or MR824 - US&S J726150-Cl40

~ICROCODE III units are provided with mounting brackets that allow shelf, wall or 19-inch rack mounting. Figure 1-1 on page 1-7 gives mounting dimensions for the "High" Cardfile used where Local I/0 interface to relays or lamps is required. Figure 1-2 on page 1-8 gives mounting dimensions for the "Low" cardfile where a repeater unit or serial port I/0 is used.

6391, p. 1-6

17-3/16" 11-1/2"

I 0 0 0 0 00 0 0 0 0 0 0 0 0 I = 0

p

p

lo

k)

0

0

lo ~

........

1/2" ~

- - ~

- - -[:=:! o» ON ODDO ol lo ODDO [c:=1 DODO ol lo 0 DODO MAIN POWER

[g] [Q]

-18-15/16"

15-9/16" •I

SHELF-MOUNT HOLES

c 1-3/4"

c 2-1/4"

c t 3"

c :+:

l 11" 31-3/ 16"

,l t

3"

c * 2-1/4" c

1-3/4" c

.....

__L 2-5/16"

T 7"

1

= = = = = = = = = = = = = = = = = = = 0 = = le = = = = = = = = = = = = 0 = = c = = = = = = = = = = = = = = = = = =

0 = = c = = ~ ~

BRACKET IN RACK-MOUNT

POSITION

BRACKET IN WALL-MOUNT i

POSITION

HIGH CARDFILE

INTERMEDIATE SIGNAL

OR

CAB ONLY WITH NWP

AND/OR WL

OR

END WITH RELAY

INTERLOCKING LOGIC

Figure 1-1. High cardfile - Intermediate Signal or cab only with NWP and/or WL, or Ena with Relay Interlocking Logic

6391,p.J-7

,._-----17-3/16" ------+Ill I 0 0 0 0 0 0 0 0 0 0 0 0 0 0 I

0 c::J 0000 Qt, ON p ODDO t=i ol Jo ODDO

cl (o DODO MAIN POWER

0

0 [g] [g]

0

0

0

- ..... -18-15/16"

1/2" ~-----15-9/16"

-+ -

l I

-SHELF MOUNT HOLES

I T

1 T

·•

c 1-3/4"

c i

3-1/2"

c t 24" 7"

c _j_ i

3-1/2"

c_1_ 1-3/4"

c -

_l 2-5/16"

T 7"

1

r--- 11-1/2" = = = = = 0 = = c = = = = = = = = = = = = 0 = = 0 = = = = = = = = = = = = = = = = = =

0 = = c = = ~ -

1 1 BRACKET IN

RACK-MOUNT POSITION

BRACKET IN WALL-MOUNT

POSITION

LOW CARDFILE INTERMEDIATE

CAB-ONLY OR END

WITH MICROLOK SERIAL PORT

Figure 1-2. Low Cardfile - Intermediate Cab Only or End with MICROLOK Serial Port

6391, p. 1-8

1.6 HIGH CARDFILE COMPONENTS

The High cardfile shown in Figure 1-3 on page 1-10 is made up of five basic sections.

1.6.1 PCB Cardfile

The PCB cardfile has card slots for nine 8.35" x 12.75"cards. These are the main PCB's of the system, i.e. CPU, Logic I/0 and Power supplies. A PCB Motherboard provides interconnections for the system PCB's via the bottom PCB connector.

1.6.2 Keypad/Display Panel

This section houses the Keypad, Liquid Crystal Display (LCD) and serial interface circuitry. The EPROM used for storing the configuration (programmable) information is contained, along with the serial interface circuitry, on a printed circuit board mounted be~ind the Keypad/Display front panel. Two 25-pin connectors are provided to allow daisy-chaining of the serial link cable in multiple MICROCODE-III applications. A printed circuit is mounted in the back of this section as shown on Figure 1-5 page 1-11. Track circuit interface components are mounted on this PCB.

1.6.3 Power-Off Switch Panel

The main battery power is switched on/off by the rocker switch mounted on this panel.

l. 6. 4 AAR Panel

The AAR panel provides 14 AAR terminals to connect Battery, Tracks etc. to the unit as shown in Figure 1-5.

1.6.5 Local I/0 Panel

This panel houses the Buchanan brand connectors for making connections to relays or signal lamps. surge suppression PCB's are mounted in this section as shown on Figure 1-5. This section also houses the failover (FO) unit that energizes the "Red" aspect when the unit has failen.

6391, p. 1-9

1/0 PANELS

LCD

SERIAL INTERFACE

KEYPAD

PCB CARDFILE

0

0

0

0

RACK OR WALL-MOUNT

BRACKET

Figure 1-3. High Cardfile Perspective View

6391, p. l-·10

31-1/4"

1.7 LOW CARDFILE COMPONENTS

The Low Cardfile is shown on Figure 1-4 below. It houses the hardware requried for a system at interlockings with Microlok i.e. serial interface or intermediate locations where no logic I/0 (relays or lamps) are requirerl. It is comprised of identical sections as the high cardfile with the Local I/0 panel omitted.

LCD

SERIAL INTERFACE

KEYPAD

PCB CARDFILE

0

0

0

RACK OR WALL-MOUNT

BRACKET

Figure 1-4. Low Cardfile Persoective View

6391, p. 1-11

25-3/4"

"' w "' ,..., 'O

,_. I ·-N

"' ,... "' ,:: " CD ,_. I '-"

"' CD :::, CD

" "' ,_. :,,,

" " "' :::, "' CD 3 CD :::, ..... 0

"' a :::, ,... .....

1/0 CABLING SLOTS

1/0 PANEL AND

CONNECTOR (ATTACHED TO

SURGE SUPPRESS. PCB)

LCD DISPLAY

SERIAL DATA PORTS

STORE ENABLE BUTTON

KEYPAD

WALL OR RACK

MOUNTING BRACKET

SYSTEM PCB SLOTS

/ oooooo 0 0 °0 °0 °0 ooooj

~

o, ~!!' ~!!' 00 DO

ii ~!

MAIN POWlR

''[QJ'

- 111111111 A B C D F G H

AAR TERMINALS

SURGE \ SUPRESSION PCB

TRACK 1: SELECTOR ......____ ; ........

POWER --J;::::::: SWITCH : ..•. :;.: , .. ··:·t:

DISPLAY PCB

---------

I .... /

''A~ CARD EDGE I CONNECTOR ' "B• CARO EDGE

CONNECTOR

-SYSTEM Pee•

MOTHERBOARD I'

GENERAL UNIT CONFIGURATION CAB SIGNAL VERSION

--------,.----------1/0 COMPONENTS

ABSENT FROM THIS SECTION IN REPEATER AND

I SERIAL INTERFACE

UNITS

-------- + --------m ;,; I 11 TRANSMIT/

:••··~-'.J RECEIVE TRANSFORMER PCB

"" 100 HZ

Fil TER PCB

I II AND

TRANSFORMER

' RIBBON CABLE

TO DISPLAY PCB

I 'II

WIRING BUSS CONNECTORS

BATT • BATT + CPS +

D I I

REAR VIEW &_ INTERMEDIATE UNITS WITH SIGNALS

I II

II

II

1.8 GENERAL DESCRIPTION OF PCB TYPES (See Figure 1-6 for Block Diagram)

1.8.l system Power supply (N451666-1001)

The system power supply converts input battery power to regulated 5V and(+) and (-) 15V regulated power to operate all of the electronic circuitry including the microprocessors. This power is distributed to the system PCB's over traces on the common Mother PCB.

1.8.2 Executive serial and Executive Logic (N451666-2001 and -2002)

There are two types of computer PCB's. The Executive Serial PCB N451666-2001 is comprised of the main or executive microprocessor and associated circuitry. This PCB is used in the 'Low• cardfile where no local I/0 is present.

The Executive Logic PCB N451666-2002 includes the same main microprocessor as above and also includes another microprocessor that controls all local I/0 hardware.

The Executive Serial and Executive Logic PCBs always reside in cardfile slot F.

1.8.3 Logic I/0 (N451666-3001 and -3002)

The N451666-3001 Logic I/0 PCB provides the circuitry to interface to relays or Color or Color-Position Light signals. Each PCB has eight inputs and eight outputs. Up to three Logic I/0 PCBs can be housed in cardfile slots c, D, and E. The -3002 Logic I/0 PCB also provides eight inputs and eight outputs. This PCB has two bi-polar outputs to drive two searchlight signal mechanisms. Refer to Section II for detailed configurations.

1.8.4 Conditional Power Supply (CPS} (~4516661-0101)

The CPS PCB outputs drive power for both relays and lamps in cardfile applications where local I/0 is used. This PCB always resides in cardfile slot A. The CPS is controlled by a 500 Hz signal provided by the microprocessor. If the microprocessor detects hardware failures or itself fails, the 500 Hz control is removed from the CPS. The CPS circuitry is vital and thus output drive power can be vitally removed in the event of a system failure. The CPS can provide up to 150 watts of regulated 11.6 volt power to drive.signals and/or relays.

6391, p. l-13

1.8.5 Cab Track I/0 Subsystem

1.8.5.1 Cab Track Controller PCB {N451666-4101)

The Cab Track Controller PCB is comprised of a microprocessor and receiver circuitry for both the track communication and broken rail signals. The microprocessor communicates with the Executive Microprocessor on the -2001 or -2002 PCB to receive commands for the "data• message to be transmitted, and to inform the Executive of what "data• is received from the track. The microprocessor on the -4101 PCB translates the data formats into an actual track message format for either transmitting or receiving. The -4101 PCB ~icroprocessor also controls the cab amplifier upon receipt of cab signal code rate data and shunt detection data.

l.8.5.2 Cab Communication Amplifier PCB (N451666-5101)

The -5101 PCB is comprised of transmitter circuitry for both the track data communication and the broken rail signal.

1.8.5.3 Cab Amplifier PCB {N451666-5201)

The -5201 PCB is comprised of an amplifier (with proper control circuitry) to generate the coded 100 Hz cab signal to be transmitted over the rails. ,t also includes the adjustments to set the transmitted cab level for conditions (track length) at the specific locations.

1.8.6 surge Suppressor N451666-6001, -6101, -6102)

surge suppression PCBs N451666-6001, -6101, and -6102 provide secondary surge protection for local I/0 connections. The -6001 PCB is used for relay interfaces, the -6101 for color or Color Position Light interfaces, and the -5102 for Searchlight signal interfaces.

6391, p. J-14

,,, ,-,.

SECTION II SYSTEM HARDWARE CONVENTIONS

2.1 GENERAL DESCRIPTION

This section describes the relationship between specific MICROCODE-III PCB's and how they interface to Signal systems.

2.2 INTERLOCKING OR TIE-IN LOCATIONS

2.2.1 Relay Interface with Double-Ended Unit

Figure 2-1 on page 2-2 shows a MICROCODE III unit equipped with the maximum number of PCB's. The end unit functions as two independent systems, each servicing an end of a track circuit.

The left (or "A") side system associates the "A" track signals with the Logic I/0 "A" PCB, and the Logic I/0 Panel A. The •c• Logic I/0 PCB can be installed as shown to input or output auxi l.lary track codes. One half of the Logic I/0 •c• PCB (card slot "E", 4 inputs and 4 outputs) is associated with the "A" track communication. Hardware inputs/outputs are made through the left side of I/0 panel •c•.

The Right (or "B") side associates the right "B" track signals with the Logic I/0 "B" PCB (card slot D) and associated "B" I/0 panel. The other half of the Logic I/0 •c• PCB (card slot "E", 4 inputs and 4 outputs) is associated with the "B" track communication. Hardware inputs/outputs are made through the right side of the I/0 Panel •c•.

It should be noted that the end unit functions as two independent systems. Therefore, track connections need not be connected as shown in Figure 2-1, but can be used for any track circuit ends desired.

Note

Refer to restrictions on cab "end" track connection in application Section Von page 5-4.

6391, p. :-1

Wl

W2

TRACK A

8 INPUTS

8 OUTPUTS

4 INPUTS

4 OUTPUTS

INTERFACE CKTS. AND CPU

CONTROL LOGIC

LOGIC 1/0 BOARD A

SLOT C

LOGIC 1/0 PANEL A

LOGIC 1/0 PANEL C

LOGIC 1/0 BOARD C

SLOT E

' INTERFACE CKTS.

AND CPU CONTROL LOGIC

t LOGIC 1/0 BOARD B SLOT D

LOGIC 1/0 PANEL B

LOGIC 1/0 PANEL C

El

TRACK B

==!> 8 INPUTS -8 OUTPUTS

-------------------------------------------------------------------------------------------

LOGIC 1/0 PANEL A

A B TK TK

I I

00000000000000

o· o· DC -=- ~ ~ -=-... L. ..... -~ : = ........ = ........

A B C O E F G H

LOGIC 1/0 PANEL C

LOGIC 110 PANEL B

CONTROL POINT OR

TIE-IN WITH RELAY INTERFACE

M ~~ ~ 1 J I ti ~~::~~~~~~~CATION AMP. LOGIC 110 A I CAB TRACK CONTROLLER LOGIC 1/0 B EXECUTIVEILOGIC

LOGIC 1/0 C -----~

Figure 2-1. Control Point or Tie-[n Wi:h Relay Interface - Double Ended

6391, p. 2-2

2.2.2 Relay Interface with Single-Ended Unit

The configuration shown in Figure 2-2 on page 2-4 is referred to as a "single ended end unit". The hardware installed only provides an interface to the left or "A" side. Logic I/0 "A" (card slot C), Logic I/0 Panel "A", and a surge suppressor PCB are installed to use the left (A) side of this system. Figure 2-2 shows the Logic I/O PCB •c• (slot E), associated Logic I/0 Panel •c• and the •c• Surge Suppressor PCB installed to handle auxillary codes in and out of the unit.

In some instances, as will be seen in the System Operation section, a single ended unit can be comprised of the "B" Logic I/0 PCB (slot O), associated I/0 panel Rs•, and a Rs• surge suppressor PCB. Four auxillary track signals can be input/output to this side by installing Logic I/0 PCB •c• (card slot E), the associated I/0 panel •c•, and the •c• surge suppressor PCB.

6391, p. ?-3

W1

W2

TRACK A

8 INPUTS

8 OUTPUTS

4 INPUTS

4 OUTPUTS

INTERFACE CKTS. AND CPU

CONTROL LOGIC

LOGIC 1/0 BOARD A

SLOT C

LOGIC 1/0 PANEL A

LOGIC 1/0 PANEL C

LOGIC 1/0 BOARD C SLOT E

A B TK TK

I I --00000000000000 -~·

I 7

LOGIC 1/0 PANEL A - Q·· ····: = =

A B C

(PS Jill SYS PS.~

LOGIC 110 A

-~c

I 7

E F G H

LOGIC 1/0 C ------

LOGIC 1/0 PANEL C

CAB AMPLIFIER

CONTROL POINT OR

TIE-IN WITH RELAY INTERFACE

CAB COMMUNICATION AMP

CAB TRACK CONTROLLER

EXECUTIVE/LOGIC

Figure 2-2. Control Point or Tie-In With Relay Interface - Single Ended

639_1, p. ?-4

2.2.3 serial r/o Interface With Double-Ended Unit

Pigure 2-3 below shows the configuration for a double-ended unit using the serial I/0 port to MICROLOK. Again, notice that there is an "A" (left) side and a "B" (right) side. This unit also functions as two independent track circuit ends and therefore can be connected to a~y combination of track ends desired. Note: Refer to restrictions on cab "end" track connection in application Section v on page 5-4.

Wl A I

'

' W2 B I I El t' ' • TRACK INTERFACE TRACK INTERFACE

TO MICROLOK

CIRCUITS

t

• .. CPU CONTROL

LOGIC

t SERIAL

INTERFACE

t TO MICROLOK

A B TK TK

I I 00000000000000

=

.

A B C E F G H

CIRCUITS

t

CONTROLLED (END) POINT USING INTERFACE

TO MICROLOK FOR LOCAL 1/0 LOGIC

DOUBLE SIDED

SYS PS. _J ~L CAB AMPLIFIER ~ CAB COMMUNICATION AMP

(AS TRACK CONTROLLER

-- EXECUTIVE/LOGIC

Figure 2-3. control.led (End) Point Using Interface to MICROLOK for Local I/0 Logic (Double Sided) (PCB Configuration I,Jentical for Singl

2.3 INTERMEDIATE SIGNAL LOCATIONS

2.3.l Intermediate Cab Generation Only Location

Figure 2-4 below shows the PCB complement required for an intermediate location where no local I/0 is required. Cab is generated in accordance with the received track signal information and the application software installed. The application software is comprised of logic rules for the specific cab signaling system defined by the equipment user and programmed into "firmware" ~y US&S. The application firmware resides in IC 32 of Executive PCB N451666-2001 or -2002.

A

. LOGIC &

INTERFACE CIRCUITS

I

I

A B TK TK

I I ......... 00000000000000

= =

AB EFGH

B

LOGIC & INTERFACE CIRCUITS

INTERMEDIATE LOCATION WITH CAB

USING NO LOCAL LOGIC 1/0

SYS PS _J ~L CAB AMPLIFIER

L CAB COMMUNICATION AMP CAB TRACK CONTROLLER

---- EXECUTIVE/LOGIC

Figure 2-4. Intermediate Location ~ith cab, Using No Local I/0

639], p. :--6

2.3.2 Intermediate Cab only Location with Local I/0

2.3.2.1 Intermediate Locations With Left Or "A" Side Local I/0

~igure 2-5 below shows the PCB complement required at an intermediate location where an NWP or the NWLP, AOTR and WL are cabled in from the left "A" side of the unit. Note that the Logic I/0 "B" PCB (card Slot D) serves to interface all local I/0 associated with the "A" track or left side of the unit. The local inputs and outputs for this configuration are connected to the unit via Logic I/0 Panel "B" with a surge suppression panel installed in the "top" 3 card Slot. Auxillary inputs/outputs associated with the left side of the unit (Track A) that are to be physically input or output from the unit, are also connected via I/0 Panel B.

/ A B . I I I

LOGIC AND

I INTERFACE CIRCUITS

1 NWP LOGIC 110 AOTR BOARD B WL SLOT D

1 8 INPUTS ==!) LOGIC 1/0 8 OUTPUTS

2.3.2.2 Intermediate Location With Right "B" Side Local I/0

Figure 2-6 below shows an intermediate location with local I/0 on the "B" side only. Note that the I/0 is connected to the I/0 Panel •c• which is associated with I/0 PCB •c• installed in Card Slot E. The Right or "B" side I/0 is 3ssociated with the track connected to the "B" Track or Right Track AAR terminals.

A I

B

I t LOGIC AND INTERFACE CIRCUITS

t LOGIC 1/0 BOARD C

SLOT E

t LOGIC 1/0 PANEL C

/ ••

NWP AOTR WL

• f:::J= 8 INPUTS ==!> 8 OUTPUTS

------------------------------------------------------------------------------------------A B

TK TK I I

00000000000000

l~----1- LOGIC 1/0 PANEL C

= = • • • • ' . ' . ' . ' . • • . ' ' ' ' . . ' • • • • • • • • ' ' ' ' • •

ABCDEFGH

.. ~~~ 1 LOGIC 110 C

INTERMEDIATE LOCATION WITH CAB USING AUXILIARY 1/0

OR SWITCH 1/0

CAB AMPLIFIER

CAB COMMUNICATION AMP

CAB TRACK CONTROLLER

EXECUTIVE/LOGIC

Figure 2-6. Intermediate Location Wi,h Cab, Using ~uxiliary I/0 or Switch I/0 (Example #2)

6391, p. "-8

2.3.2.3 Intermediate Cab only Location With Left and Right Local I/0

Figure 2-7 below shows an intermediate location ~ith local I/0 connected to both sides. Again, the I/0 PCB "B" (Card Slot DJ is associated with the "A" track connections and I/0 PCB "C" (Card Slot E) is associated with the "8" Track connections.

/

NWP AOTR WL

8 INPUTS

8 OUTPUTS

A

LOGIC AND INTERFACE CIRCUITS

LOGIC 1/0 BOARD B SLOT D

LOGIC 1/0 PANEL B

A 8 TK TK

I I

8

LOGIC AND INTERFACE CIRCUITS

LOGIC 1/0 BOARD C

SLOT E

LOGIC 1/0 PANEL C

/

NWP AOTR WL

2.3.3 Intermediate Location With Cab Signal Generation and Wayside Signals

2.3.3.1 One Signal in Each Direction

Figure 2-8 below shows the PCB complement for an intermediate location in a system where cab generation and wayside signals are both used. The Logic I/0 "A" PCB is used to drive the "A" head signals in both directions. In this type of a system, also note that the left and/or right NWP is connected to the unit via the "A" I/0 Panel and the "A" Logic I/O PCB.

! INTERFACE CKTS.


1 ~ "A" SIDE

LEFT NWP INPUT WHEN REQUIRED

t A B

' I

LOGIC 1/0 BOARD A

SLOT C

LOGIC 1/0 PANEL A

A B TK TK

I I

t I i

INTERFACE CKTS. ';I


t

"B" SIDE

. ~

RIGHT NWP INPUT WHEN REQUIRED

00000000000000

-

~· l ..,.___

LOGIC r,o PANEL A -Y::::::~ 1 ...... 1 c:=::J : : c::=:J : ...... :

A 8 C D

SYS ~PSS :=!-1 t LOGIC 1/0 A =--J

F G H

INTERMEDIATE (ONE SIGNAL IN

EACH DIRECTION)

~ CAB AMPLIFIER CAB COMMUNICATION AMP CAB TRACK CONTROLLER EXECUTIVE/LOGIC

Figure 2-8. Intermediate Location - One Signal in Each Direction

2.3.3.2 One Signal in Each Direction With Electric Lock and/or Local I/0 Connections for Auxillary Track Codes

Figure 2-9 below shows the PCB complement required for an intermediate location with both cab signal generation and wayside signals with requirement for AOTR input and WL output for a switch electric lock control. The AOTR and WL connections to the unit are made through Logic I/O Panel c and associated surge Suppressor PCB and the Logic I/0 PCB "C" (card Slot E). Logic I/0 and Panel c and I/0 PCB •c• also provide the connections to bring auxillary track codes into and out of the unit where desired.

A

ELE

• INTERFACE CKTS. AND CPU

CONTROL LOGIC

'

"A" SIDE

LEFT NWLP INPUT WHEN REQUIRED

UX CODES LEFT AND/OR

2.3.3.3 Approach Signal In One Direction

Figure 2-10 below shows a typical approach in one direction and a single signal in the opposite direction. As in a normal intermediate location, the Logic I/0 "A" PCB (card slot C) services the "A" signal heads in both directions. The Logic I/0 "B" PCB (card slot D) is installed to control the a signal head. The Logic I/0 "A" PCB has two inputs designated as NWP inputs, one for each side.

WA WB

_.:,,.) _.:,,.) I', A B . I

+ I + I " " ~ INTERFACE CKTS. INTERFACE CKTS. E AND CPU AND CPU ''

A

CONTROL LOGIC CONTROL LOGIC

... LOGIC 1/0 . BOARD A

SLOT C "A" SIDE "B" SIDE

LOGIC 1/0 LEFT NWP PANEL A - RIGHT NWP INPUT INPUT WHEN REQUIRED

WHEN LOGIC 1/0 REQUIRED BOARD B SLOT D

"A" SIDE LOGIC 1/0 PANEL B

-----------------------------------------------------------------------------------A B TK TK

I I

00000000000000

LOGIC 110 PANEL A _l-;.J·····: -· . . . ~ :. L c,-:

2.3.3.4 Double Approach With Switch Electric Lock

Figure 2-11 below shows that a system with both the Lo9ic I/0 "A" and "R" PCB's can drive a location with two signal heads in each direction (double approach location). It also illustrates that the Logic I/0 •c• PCB is installed to accomodate electric lock inputs ann release outputs to both sid~s at any location.

, [:,. A B ' .. ' .. I • • f:::F: INTERFACE CKTS. INTERFACE CKTS.

AND CPU AND CPU ' CONTROL LOGIC CONTROL COGIC .. LOGIC 110 BOARD A

SLOT C "A" SIDE "B" SIDE

LOGIC 1/0 LEFT NWLP PANEL A I

2.3.3.5 Intermediate Location in Cab and Wayside Signals System With NWP Only

f'igure 2-12 below shows the PCB complement for the NWP input for a location in a system where both cab signal and wayside signals are used. The NWP is connected through the Logic I/0 Panel A and the Logic I/0 PCB A (Cara Slot C) in keeping with the I/0 connection in this system.

6. A B I + I + I ... • f::f::

INTERFACE CKTS. INTERFACE CKTS. AND CPU AND CPU '

CONTROL LOGIC CONTROL LOGIC

• LOGIC 1/0

' BOARD A SLOT C

"A" SIDE "B" SIDE LOGIC 1/0

LEFT NWP PANEL A

2.3.3.6 Intermediate Location In cab and Wayside Signal system With Electric switch Lock and/or Auxillary I/0

Figure 2-13 below shows the PCB complement for above type of location. The NWP(s) are input and output via the Logic I/0 Panel "A" and the Logic I/0 PCB "A" (Card Slot C). The AOTP input and the WL are I/0 via Logic I/0 Panel c and I/0 PCB C (Card Slot E). Auxillary Track Codes for both sides are also I/0 via I/0 Panel c and I/0 PCB c where it required to access them locally, again in keeping with the I/0 connection in a system with both cab generation and wayside signals.

t, t,

I A B

' t I t I .. .. f::F:

INTERFACE CKTS. I INTERFACE CKTS. AND CPU AND CPU

CONTROL LOGIC j CONTROL LOGIC

• LOGIC 1/0 BOARD A

SLOT C "A• SIDE "a• SIDE

LOGIC !/0 LEFT NWLP PANEL A RIGHT NWLP INPUT

INPUT WHEN REQUIRED WHEN

LOGIC f/0 REQUIRED BOARD B

SLOT D

"A• SIDE LOGIC l/0

"a· SIDE PANEL 8

LOGIC 110 BOARD C

SLOT E

LEFT AOTR AND WL

3.1 INTRODUCTION

SECTION III SIGNAL SYSTEM OPERATION

This section describes the input and output and track signal transmission format in the MICROCODE-III cab-only and cab with wayside signals applications.

3.2 TRACK DATA BIT DESIGNATION

Eight track data bits are transmitted in both directions over the rails. Each bit is equally vital and equally independent of the other codes. This provides 256 possible track codes.

The eight track bits are assigned in the standard system are shown below.

DATA BIT 1 2

SIGNAL ASPECT DATA H, D ETC.

3 4

AUXILIARY CODE 1

5

AUXILIARY CODE 2

AUXILIARY CODE 3

r BLOCK INDICATION r SPARE 6 7 8

6391, p. 3-1

3.3 SIGNALING BIT MAPPING LOGIC I/0 TO/FROM TRACK DATA BITS

3.3.1 Cab Generation Only

3.3.l.l Signaling Data

The top of Figure 3-1 on page 3-3 shows the correspondence between hardware inputs and outputs and the specific track data bits used to transmit them from location to location. This depicts signal flow in one direction, but the signal designation is exactly the same in the opposite direction. In this ,example, I/0 panel •s• is used to input/output signal data from a relay interlocking system. The inputs are always designated as shown.

~he eight possible inputs are multiplexed into the first three track data bits as shown. The allowable combinations are shown at the bottom of Figure 3-1. If inputs are energized other than in the allowable patterns, the system considers them as illegal inputs and no code is transmitted over the rails.

The first three track data bits are transmitted to the approach location, decoded and the appropriate cab and communication signals generated to transmit to Track "B".

Notice that the Block and Track occupancy are output at the control point MICROCODE-III and used for the interlocking logic whether it is a relay ,1r MICROLOK system.

6391, p. ·,-2

DATA COMMUNICATION FORMAT SIGNALING DATA - CAB ONLY

~ DATA BITS 1, 2, 3 . -' ' A B A B

' • ' . . • I , I 2 I 3 I 4 I s I 6 I 1 I s I i1 i2j3j4JsiGl1isi '----v--" '----v--"

l . TO CPU FOR ENCODING

H CAB AND COMMUNICATION SIGNALS FH

. TO TRANSMIT TO TRACK "B" D

. v .

BH

BFH

BFD 1/0 PANEL B BD OR

MICRO LOK . DATA BYTE

H - 2 FH ..._ ....

D , '-,

TK ::

BLK ....-....

BH:: TRACK BFD :: DATA BD r BITS

LOGIC INPUT 1 2 3 -- 0 0 0

H 1 0 0 H-BFH 0 1 0

H·BD 1 1 0 H·BFD 0 0 1 H·BH 1 0 1 H·FH 0 1 1 H·D 1 1 1

Figure 3-1. Track Message Encoding - Cab-only System

6391, p. 3-3

3.3.1.2 Auxiliary Track Codes

Figure 3-2 below illustrates how the auxillary codes are input from Logic I/0 PCB •c•, encoded into track data bits 4, 5, 6 and transmitted over the rails. They are then received at an intermediate location, decoded and output from Logic I/0 "B" PCB and the "B" I/0 panel. Note that the auxillary track codes can be input and output from any location by installing the Logic I/0 •c• PCB and associated I/0 Panel •c•. Auxiliary track codes that are associated with the "B" track are input and output from the Logic I/0 panel cat the intermediate location shown below.

3.3.1.3 Programable Functions of Auxiliary Cod~s

As will be described in the configuration programming section, the auxillary track codes can be individually input/output or transmitted past any intermediate location as shown in Figure 3-3 on page 3-5. Each location can be programmed to have individual auxillary bits interrupted by the NWP as illustrated on Figure 3-4 on page 3-6.

DATA COMMUNICATION FORMAT AUXILIARY DATA - CAB ONLY

~ DATA BITS 4, 5, 6 INTERMEDIATE B A B •• INTERLOCKING

" - AUX 1 AUX 1 AUX 1 - v v

AUX 2 AUX 2 - AUX 2 -v - AUX 3 AUX 3 AUX 3 -1/0 PANEL C

1/0 PANEL B 1/0 PANEL C - -- AUX 1 AUX 1 AUX 1 -- -- AUX 2 AUX 2 v - AUX 2 - - -- AUX 3 AUX 3 - v - AUX 3 AOTR v AOTR

AUXILIARY CODES ARE MULTIPLEXED USING DATA BITS 4, 5, 6.

Figure 3-2. Data Communicatiom Format - Auxiliary Data (~ll Cab Signal Only System

6391, p. 3-4

' '

A B


REPEATER

1/0 PANEL C t===.f>~ ~e===JI 1/0 PANEL B .. I LOGIC 1/0

===ajL)j PCB B LOGIC 1/0

PCB C SLOT E

-- ===;~ SLOT D ., I

AUXILIARY BITS ARE TRANSMITTED OVER TRACK BITS 4, 5, 6.

AUXILIARY BITS CAN BE TRANSMITTED BY A LOCATION BY

PROGRAMMING OF KEYPAD.

AN INTERMEDIATE CAN BE PROGRAMMED FROM THE KEYPAD TO

1/0 OR REPEAT INDIVIDUAL AUXILIARY BITS AS DECIDED.

Figure 3-3. Data communicatiom Format - Auxiliary Data (#2) cab signal Only syst~m

6391, p. ,-5

A B

B

.

1/0 PANEL C

AUX 2 OUT

AUX 3 OUT


. . •• I A' A B

•• . -AUX 1 v AUX 2

-NWP ,v AUX 3

I 1/0 PANEL B 1/0 PANEL C I

, AUX 1 v

~ AUX 2 -~AUX 3 -

--------------AUX 2 IN

·--------------AUX 3 IN

AN INTERMEDIATE CAN BE PROGRAMMED FROM THE KEYPAD

TO HAVE INDIVIDUAL AUXILIARY BITS INTERRUPTED BY THE NWP

KEYPAD PROGRAMMING WOULD ALLOW BREAKING AUXILIARY 2

AND 3 OR JUST EITHER ONE WITH THE NWP INPUT.

NOTE: WHEN THE NWP 15 PROGRAMMED TO BREAK AN

AUXILIARY BIT, IT BREAKS IT IN BOTH DIRECTIONS.

Figure 3-4. Data Communicatiom Format - Auxiliary Data (0) Cab Signal only Syst.P.m

6391, p. 1-6

3.3.2 cab Generation With wayside Signals

1.1.2.1 Signaling Data

The top of Figure 3-5 on page 3-8 shows the correspondence between hardware inputs and outputs and the specific track data bits used to transmit them from location to location. This depicts signal flow in one direction, but the 3ignal designation is exactly the same in the opposite direction. In this example, I/0 panel "B" is used to input/output signal data from a relay interlocking system. The inputs are always designated as shown.

-:?he eight possible inputs are multiplexed into the first three track data bits as shown. The allowable combinations are shown at the bottom of Figure 3-S. If inputs are energized other than in the allowable patterns, the system considers them as illegal inputs and no code is transmitted over the rails.

The first three track data bits are transmitted to the approach location, decoded and the appropriate logic outputs energized to drive the signal heads. Bits 1, 2 and 3 are also used by the logic to determine the appropriate cab and communication signals to sen,.1 to Track "3".

Notice that the Block and Track occupancy are output at the control point MICROCODE-III and used for the interlocking logic whether it is a relay or MICROLOK system.

Also notice that left and right track occupancy is output on the intermediate Logic I/0 "A" PCB (designated "left APH") where it can bP. used for cross lighting in double track, hot box detector starts, etc.

6391, p. 3-7

i

I I I

I i

I

DATA COMMUNICATION FORMAT SIGNALING DATA - CAB WITH WAYSIDE SIGNALS

~. . A B

. j1 j2l3l4jsjGj1jsl ..___,___,

1

DATA BITS 1, 2, 3 . .

I . •

l1 !2l3j4jsjGl1ls! ..___,___,

. . A B

H ==t-:::i

FH ==t-:::i

D ==C:l

l.APH

3.3.2.2 Auxiliary Track Codes

Figure 3-6 below illustrates how the auxillary codes are input from Logic I/0 PCB •c•, encoded into track data bits 4, 5, 6 and transmitted over the rails. They are then received at an intermediate location, decoded and output from Logic I/0 •c• PCB and the •c• I/0 panel. Note that the auxillary track codes can be input and output from any location by installing the Logic I/0 •c• PCB and associated I/0 Panel •c•.

3.3.2.3 Programable Functions of Auxiliary codes

.~s will be described in the configuration programming section, the auxillary track codes can be individually input/output or transmitted past any intermediate location as shown in Figures 3-7 on page 3-10. Each location can be programmed to have individual auxillary bits interrupted by the NWP as illustrated on Figure 3-8 on page 3-11.

DATA COMMUNICATION FORMAT AUXILIARY DATA - CAB WITH WAYSIDE SIGNALS

~. DATA SITS 4, 5, 6 INTERMEDIATE

INTERLOCKING B A B

RIGHT - LEFT RIGHT AUX 1 AUX 1 ' --~ AUX 2 AUX 2 S.::: - --~ AUX 3 AUX 3 "'

1/0 PANEL C

AUX 1 AUX 1 - -1/0 PANEL C --- AUX 2 AUX 2 - --- -- AUX 3 AUX 3 --

AOTR -

AUXILIARY CODES ARE MULTIPLEXED USING DATA BITS 4, 5, 6.

Figure 3-6. Data Communicatiom Format - Auxiliary Data (#1) cab With waysid~ Sigr.als

6391, p. l·-9

-, AUX 1 --, AUX 2

- AUX 3

AUX 1

AUX 2

AUX 3

AOTR

~


REPEATER . . '

A B

. . - -. -- -

1/0 PANEL C v - 1/0 PANEL C - ~ • -LOGIC 1/0 LOGIC 1/0 .

PCB C . PCB C SLOT E

. SLOT E ~

.

~

AUXILIARY BITS ARE TRANSMITTED OVER TRACK BITS 4, 5, 6.

AUXILIARY BITS CAN BE TRANSMITTED BY A LOCATION BY

PROGRAMMING OF KEYPAD.

AN INTERMEDIATE CAN BE PROGRAMMED FROM THE KEYPAD TO

1/0 OR REPEAT INDIVIDUAL AUXILIARY BITS AS DECIDED.

' A

Figure 3-7. Data Communication F·,rmat - Auxiliary Duta (~2) Cab With Wayside Signals

6391, p. ,-10

B

. ,B

•


'

' A B

' AUX 1 . AUX 2

.

. • . A

' . .

1/0 PANEL C NWP 1/0 PANEL C AUX 3 1/0 PANEL C LOGIC 1/0

PCB C SLOT E

AUX 2 OUT

AUX 3 OUT

LOGIC 1/0 LOGIC 1/0

-> AUX 1 PCB C PCB C SLOT E SLOT E

·~ AUX 2 . AUX 3 .

--------------AUX 2 IN

--------------AUX 3 IN

AN INTERMEDIATE CAN BE PROGRAMMED FROM THE KEYPAD

TO HAVE INDIVIDUAL AUXILIARY BITS INTERRUPTED BY THE NWP

KEYPAD PROGRAMMING WOULD ALLOW BREAKING AUXILIARY 2

AND 3 OR JUST EITHER ONE WITH THE NWP INPUT.

NOTE: WHEN THE NWP IS PROGRAMMED TO BREAK AN

AUXILIARY BIT, IT BREAKS IT IN BOTH DIRECTIONS.

Figure 3-8. Data Communication Format - Auxiliary Data (#3) cab With wayside Signals

6391, p. 3-11

1.4 DATA TRANSMISSION BETWEEN MICROCODE-III AND MICROLOK

Figure 3-9 below illustrates the data format for the information bits transmitted between MICROCODE-III and MICROLOK. There are three bytes in each direction. Byte 1 is the left side signaling information to MICROCODE with the same bit designation as the input from a Logic I/0 PCB. syte 2 is the eight side signaling bits. Byte 3 is the left and right side auxiliary bits.

BYTE 1 H

BYTE 2 H

BYTE 3 AUX 1

DATA COMMUNICATION FORMAT MICROLOK..._. MICROCODE

SERIAL INTERFACE MICROCODE MICROLOK

MICROLOK MICROCODE

LEFT {A) SIDE

2 3 4 5 6 7 8

FH D I SPARE I BH BFH BFD BD RIGHT {B) SIDE

2 3 4 5 6 7 8

FH D I SPARE I BH BFH BFD SD "A" SIDE "B" SIDE

2 3 4 5 6 7 8

AUX 2 AUX 3 SPARE AUX 1 AUX 2 AUX 3 SPARE

·----------------------------------------------------------------------------------MICROCODE MICROLOK

LEFT {A) SIDE

2 3 4 5 6 7 8

BYTE 1 H FH D TK I BLK I SH BFD SD RIGHT (B) SIDE

2 3 4 5 6 7 8

BYTE 2 H FH D TK BLK BH BFD BD

"A" SIDE "B" SIDE

2 3 4 5 6 7 8

BYTE 3 AUX 1 AUX 2 AUX 3 SPARE AUX 1 AUX 2 AUX 3 SPARE

Figure 3-9. Data Format - MICROLOK and MICROCODE-III

6 391, p. 3-12

3.5 BLOCK INDICATION DATA BIT

The block indication signal (Track Bit 7) can be initiated at any intermediate location. Part A (top) of Figure 3-10 shows the block indications being initiated in a split block fashion to break the block into two sections. This is done for occupancy indications in a CTC syste~.

Part B (bottom) of Figure 3-10 illustrates the block indications being initiated in an overlapping fashion to break the block into three sections for occupancy indications in a CTC system.

BLOCK

1.6 TRACK COMMUNICAITON FORMAT

1.6.1 General Track Message Description

The actual signal transmitted to the track consists of several signals superimposed. Each signal will be treated separately in the following description.

3.6.2 Broken Rail/Vital Shunt Detection Signal

The signal that is used for broken rail detection and vital shunt detection is shown in Figure 3-11. This signal is half-duplex and is comprised of 8 cycles of 15 Hz from the "A" side track, and 12 cycles of 15 Hz from the "B" side track. The half-duplex communication requires a means of synchronizing the broken rail signal communication between the two units. This is accomplished by designing the "A" track side as the Master side and the "B" Track side as the Slave side. In this configuration, a Master side will transmit without a received signal, but a Slave side will only transmit after receiving a valid messag1=.

Figure 3-11 part B then depicts a situation where a shunt or open is present. Thus, only the "A" side (Master) end of #2 unit will transmit after the shunt leaves or the break is cleared. The B side (Slave) end of #l unit will receive a signal from unit i2 A side, and the communication between the two ,rni ts wi 11 be synchronized as shown in Figure 3-11 part c.

This then requires that the two units communicating to each other must always be an "A" unit and a "B" unit as shown in Figure 3-11 part A.

It should also be noted that the broken rail/vital shunt detection signal i.s 'on" at all times; both with the normal data communication signal and the cab signal when it is being generated to the track.

6391, p. 3--14

BROKEN RAIL COMMUNICATION (HALF DUPLEX)

#1 #2

A B A B

BEFORE SYNCHRONIZATION

I 540 MS. I 540 MS. - 8- ___ _..._ ____ 1.27 SEC. -----t-- 8- --~ 15 HZ 1 S HZ

-t AV

AFTER SYNCHRONIZATION

r408~s+ 906 +--811 MS. r- 906 r40MS+ 906 +--811MS-, Ml. 12-----+ Ml. ~ 8- MS. 12-15 HZ 1~ HZ 15 HZ 15 HZ ~

AV

--*- --- -Figure 3-11. Broken Rail Communicat i.on - Ha If-Duplex

6391, p. 3-15

3.6.3 Data Communication Signal

The data communication is full-duplex (i.e., transmitted from both ends simultaneously). Data is carried by a PSK (Phase Shift Keying) to encode/decode information onto a carrier frequency. The "B" si.-le (Slave) carrier is 81.4 Hz and the "A" side (Master) carrier is 108.5 Hz, as shown in Figure 3-12 part A. Each 110 msec. of the carrier represents a "bit" of data. A phase shift indicates a "l" bit, and no phase shift indicates a "O" for transmitted/received data bits true or false as indicated in Figure 3-12 part B.

A BCH check is used to accomplish security of the transmitted and received signals. A complete message then consists of 28 bits, each 110 msec. long or a total of 3. 08 seconds per message. The bi ts are then used as follows:

First 2 Gap:

Next 4 Synchronization Bits i.e., detest beginning of message

Next 1 Tumbledown accelerates tumbledown when an H is slotted off at an end unit

Next 1

Next 1

Next 8

Next 11

Polarity 0/1 designates units track polarity for broken down insulated joint protection.

Tumbledown used in conjunction with the tumbledown bit to increase reliability of tumbledown command.

Data carries 8 system data bits as described in section 3.3.1.1.

BCH used to implement the BCH check of receiverl signals.

When no shunt is present, the data communi~ation is on at the same time as the broken rail/vital shunt detection signal. The rlata communication signal i.s al:so used to turn on the cab generation amplifier. The system accomplishes .this by generating a non-vital shunt if O. 5 seconds elapses without receiving any communication signal carrier. The conununication signal is turned off when the cab generation is turned on. This then provides the means to turn the cab on within the 1 second of a shunt entering the circuit, as required to prevent cab "flips• (loss of signal) on the on-board equipment.

l\s described in section 3.6.2, the broken rail/vital shunt detection is on all the time. After the cab is turned on by the "quick shunt", it is then turnerl back. off by the vital shunt signal derived from the low frequency signal (described in Section 3.6.2) when the shunt leaves the track circuit.

6391, p. 3-16

A B

81.4 HZ

0

COMMUNICATION FORMAT (FULL DUPLEX)

FSK WITH PHASE SHIFT = 1

0

110 MSEC. / BIT

28 BITS = 3.08 SEC.

0 0

Figure 3-12. Communication Format - Full-Duplex

6391, p. 3-17

A B

108.5 HZ

3.6.4 Track Polarity

Track "polarityn is achieved by programming the unit as a"+" or"-" when the configuration data is entered from the keypad. ~ unit programmed as a •+• has both of its track circuits designated as"+", anrl a unit programmed for"-" track polarity has both of its track circuits designated as"-" A"+" unit will only communicate with a•-• unit, therefore units must be alternately programmed as+ and - as shown in Figure 3-13 below.

TRACK POLARITY

A B A B A B A B A B A B

+ + +

"A" AND "B" SIDES OF A GIVEN UNIT ARE BOTH + OR -

AN "A" END MUST TALK TO A "B" END.

Figure 3-13. Track Polarity

6391, p. 3 18

3.7 LOCATION-DEPENDENT FIELD PROGRAMMABLE PARAMETERS

The following location-dependent parameters are Field programmed using the KEYPAD as a control and the Liquid Crystal Display (LCD) as display of the par3meters. The Keypad and Display can be used for observing th programmed parameters along with other system data as described in Section IV "Keypad •Jperation•. These programmable features are the equivalent of the hard wiring in a relay system, therefore the location circuit plans should include a table ,showing the programming for that location. Examples are provided in the application section.

KEYPAD PROGRAMMABLE PARA~ETERS

DJUSTMENTS

Track Circuit: Track circuit length, programmed from keypad

Lamp/Relay Outputs: Programmed from keypad when installed. Remove jumpe on I/0 Surge Suppression PCB (N451666-6101, -6102) for relay outputs.

Cab current: Level adjusted by a potentiometer for each track circuit on the Cab Amplifier.

KEYPAD SELECTABLE FUNCTIONS *Protected with access security code.

1. Lamp/relay output.

2. Approach/steady signal lighting. Internal power off detection.

3. Stick enable (both directions).

4. Auto upgrading (both directions).

H -3,, H H -~ FH H -7 D FH -7 FH FH -,> D

5. Block initiate/repeat (both directions).

6. Auxiliary codes I/0 or repeat each independently in both directions.

7. NWP break auxiliary codes independently, both directions.

8. WL timer O to 16.6 mins. in l sec. increment.g.

9. Cati jumper used to enable the cab from the v bit input.

6391, p. 3-19/20

SECTION IV KEYPAD OPERATION

4,1 LCD SYMBOL INTERPRETATION

The LCD symbols are interpreted as follows:

• Dark circle = Answer is yes or function is on.

Q Open circle = Answer is no or function is off. )f. Means function is undefined or not present in this unit.

An example is: 1 -AT I

12345678

This is a display of the eight data bits received from the "A" track circuit. Recalling the track bit designation, the first three bits:

.QQ = 100 H only.

The 4th bit:

QQQ. = TK = on.

indicating that an auxillary code 1 is being received from the left track.

4.2 KEYPAD FUNCTIONS

The Keypad is used for:

1. configurating unit and selecting options at each location

2. selecting system data to be displayed

~. Data received from tracks decodes signal information

1 - AT I .QQQQQC:)Q

ONLY --------!22 CODE = H

B. Data transmitted to tracks c. 9ata to/from Logic I/0 D, System status

a. Logic subsystem b. Track Subsystem

6391, p. 1-1

3. Recovering recorded faults and errors

A. Displays:

Fault# & # OF occurrances since last clearea.

NNN nn

Where NNN =Fault# and nn # of ocur rences

B. Displays:

Expanded fault text:

Example 1:

Example 2:

Example 3:

HARDWARE FAILURE

LOGIC "B" BOARD

EXTRA OR MISSING

LOGIC "A" BOARD

NOT CONFIGURED

HIT CLEAR TO IDL

corrective action is tabulated in section VII.

4.3 KEYPAD KEY FUNCTIONS

~igure 4-1 below shows the keypad layout.

Figure 4-1. Keypad Layout

6391, p. 4-2

The keypad functions are as follows:

Key Label

l 9

NEXT

CMD

ENTER

CLEAR

DEL

BLANK KEY

Function

Enter numeric data or select a commanti to execute. some responses 1 = Yes, O = No.

Advances cursor to next screen. Only functional when Nor NEXT appears (i.e. Nor NE CMD).

Invokes cer·tain command. Only functional when CMD appears (i.e. CMD 99 takes cursor to exit).

Enter data. Answer prompt only functional when E appears (i.e. E or NE CMD or ENTER).

Clears display or fault/error data when prompted.

Erases data on display. Moves cursor backward.

Returns system back to starting CMD.

4.4 KEYPAD/DISPLAY THEORY OF OPERATION

The Keypad can be used to access all of the syste~ functions as depicted on the "control" flow diagram of Figure 4-2 on page 4-4. There are two main modes, Operate and Idle, that can be considered as chapters in a book. Within these two chapters several ~pagesn of system functions can be accessed.

The control can be considered as a cursor pointing to the current function of the box. If in the Operate Mode, the cursor can be moved to the next page by pressing the •next• function key on the keypad. If the operator desires to access that page of data, the ENTER key is pressed on the keypad. For example, if the cursor is pointing to:

1. View Data

and the ENTER key is pressed, the cursor would be moved to the View Data page shown on Figure 4-2. The cursor could be moved to each of the eight bit data •lisplay by pressing NEXT on the keypad. This page is exited by setting the ,cursor on 99 EXIT VIEW DATA and pressing ENTER on the keypad. The cursor is then moved back to the Operate Mode.

:~ote that passwords are required as to enter the Configure Mode. is on either of these functions,

to enter the shut down or Idle Mode, as well If the operator presses ENTER when the cursor he will be prompted for a password.

Passwords are comprised of up to eight bits and are entered at the time of initially configuring the unit. The three passwords need not be the same, thus different levels of security can be maintained for the three functions.

6391, p. ·1-3

KEYPAD OPERATION - MAIN MENU

I r----------~---------------------

OPERATE MODE PAGE 7-13

11. VIEW DATA ENTER 1ol PAGES

: 4-5 & 7-22 • NEXT 1

2. VIEW CONFIGURATION ENTER I PAGE 7-16 ..

NEXT

ENTER I PAGE 7-19 3. VIEW EVENTS .. NEXT

ENTER I PAGE 7-20 4. VIEW FAULTS ..

NEXT

is TEST MODE ENTER

I> I PAGE 7-24 .. NEXTl

SHUT DOWN ENTER

6. PASSWORD PAGE 7-12

NEXT

~----------------------------------r------- __ [ ______________________ _

IDLE MODE PAGE 4-7

L1_._R_u_N_c_o_N~F1~G_u_R_E __ ~_E_N_T_E_R_..I PASSWORD ~I PAGE 6-14 ~ NEXT

ENTER ~--+--1------1 2. RUN OPERA TE

NEXT

3. VIEW EVENTS

NEXT

14. VIEW FAULTS

NEXT I

ENTER PAGE 4-7 •I

I I

ENTER .. , PAGE 4-7 .I

....I

-,

L-----------------------------------~ ~igure 4-2. Keypc,11 Operation

6391, p. 4-4

Table 4-1 below lists the system status bi's displayed when the View Data Mode is first entered. These bits indicate the status of sub systems as well as indicate whether faults or errors have been logged. This display can thus expedite location of failures in the system.

The Test Mode can be used to steady light the signals for troubleshooting purposes when the unit is normally configured for approach lighting.

Table 4-1. Keypad Operation - System Status Bits

VIEW DATA ????????\ System Status & AEFLCABM 1. AT! A Track Input 2. ALI A Logic Input 3. BL! B Logic Input 4. ALO A Logic Output 5. BLO B Logic Output 6. ATO A Track Output 7. BT! B Track Input 8. CL! c Logic Input 9. CLO c Logic Output 1 o. BTO B Track Output 11. MAI MICROLOK A Input 12. MB! MICRO LOK B Input 13. MCI MICRO LOK c Input 14. MAO MICRO LOK A output 15. MBO MICRO LOK B Output 16. MCO MICRO LOK c output 1 7. ATS A Track Status ~ 18. BTS B Track Status 19. CAB Off-Code Rate 20. .~LF A Light-Out Information 21. BLF B Light-Out Information 23. DSP Display Parameters (fixed &

by logic table)

99. Exit View Data return to Operate Mode

& See page 4-6

& See page 4-6

& See page 4-7

6391, p. 4-5

~ SYSTEM STATUS

flit ID

A

E

Description

With circle dark, voltage is present at the unit's AC input terminals; clear, no voltage is present. This input is used for approach lighting intermediate signals (see Figure 5-12, p. 5-13).

This circle dark shows that a system event has happenen. (The events are cumulative until cleared by operator); clear, no events.

F This circle dark shows that a system fault has occured. (Faults are cumulative until cleared by the operator); clear, no faults.

L This circle dark signifies the Logic I/0 is up and running; clear, the Logic I/0 is down; x, no Logic I/0 for this system.

c With the circle dark, the cab system is up and running; clear, the Cab is down; x cab is not required for this system (this must then be a wayside unit only).

A This circle dark shows that the "A" 'frack for a wayside unit only is up and running; clear, the •A• Track is down: x, the unit is a "B" end only or a cab signal unit.

B This circle dark shows that the "B" Track for a w3yside unit only is up and running; clear, the •s• Track is down; x, the unit is an "A" end only or a Cab signal unit.

M This circle dark signifies communications with MICROLOK; clear, the MICROLOK communications link is .lawn; x, MICROLOK is not used with this system.

& A'l'S or BTS A and B track status are used to ind;,oate if the track information is being transmitted and received. The 8-bit display is used for this information. '!'he following shows the bit information.

222222221 BRQXLCTJ

B Transmitting Broken Rail R Receiving Broken Rail Q Quick Shunt x Transmitting Commun.i.cati,H1 L = Link Up {Receiving Good rommunication Signal) c Cab Transmission on T Receiving Tumble Down J Broken Down Joint

• = Bit is 1 = True = Set

6391, p •. ; -6

4.5 BASIC MODE SELECTION (FROM IDLE MODE)

The following procedure places the MICROCODE III system in the initial* Idle Mode, and allows call-up of the four basic functional modes (i.e. the unit is powered up with the configuration not programmed):.

Operation

1. Move the power switch to the ON position.

2. Press the CLEAR key.

3. Press the NEXT key as required to view the four basic func-tional modes under the Idle Mode.

4. Press the NEXT key.

5. Press the NEXT key.

Verification

1. LCD should show:

\NOT CONFIGURED I 1HIT CLEAR TO IDL

2. LCD should show:

U MICROCODE 111

WELCOME

The system is now in the Idle Mode, Working modes may now he entered.

3. LCD should show, in sequencP.:

1 - RUN CONFIGURE

{IDL}

2 - RUN OPERATE

{IDL}

13 - VIEW ERRORS l{IDL}

I 14-VIEW FAULTS

{IDL}

Mode 1 (RUN CONFIGURE) is the system configuration mode.

Mode 2 ( RUN OPERATE) starts rouU ne system operation. Note: Can only be entered after the configuration process has been completed.

: Mode 3 (VIEW EVENTS) allows system ert

~ The display parameters are only used at intermediate locations in all of the current application software packages. The 8-bit display is used to indicate the status of the stick and signals that are associated with setting the stick. The following shows the bit designation:

222222221 1 2 3 4 5 6 7 8

1 L.STICK Left Stick

2 R.STICK Right Stick

• = Bit is 1 = True = Set

6391, p. ,!-7

I

I I

operation

6. To enter the desired mode, bring 6. up the appropriate display with the NEXT key, and press the ENTER key.

The desired mode can also be accessed directly by pressing the following sequence of keys:

CMD Numeric (1, 2, 3, or 4) ENTER

7. To exit a basic functional mode, press the following sequence of keys:

CMD 99 ENTER

7.

Verification

LCD should show one of the four primary operating displays (listed in step 3). However, the second line starts with the abbreviation for the respective mode, rather than (IDL).

Refer to following manual sections for further LCD displays and keypad operations:

Mode Mode No. Section --Configure 1 6.7.2 Operate 2 7. 5. 3 View Errors 3 7.5.4.2 View Faults 4 7.5.4.2

LCD should show:

~CROCODE 111 ' :WELCOME

The system is now back in the Idle Mode.

6391, "· 4-9/10

5.1 TYPICAL APPLICATIONS

Sl:'CTION V APPLICATION DESIGN

This section shows typical applications of MICROCODE-I II for the purpose of wiring the unit to signals and/or relay logic. For special applications problems not covered by this section, consult US&S Hardware Engineering.

5.2 INTERLOCKING (CONTROL POINT)

Interlocking (control point) application examples are as follows:

F'igure Description

5-1 Typical SIP at MICROLOK Interlocking 5-2 5-2 Typical Application at Relay Interlocking, Side "A" (Left) 5-3

Interface (Cab with Wayside or Wayside Only) 5-3 Application of MICROCODE-III to Generate Cab Signal Inside 5-4

Interlocking in Conjunction with DC O.S. Circuit

5.3 INTERMEDIATE LOCATIONS

Intermediate application examples are as follows:

Figure

5-4 5-5

5-6

5-7

5-8

5-9

5-10

5-11

5-12

5-13

5-14

5-15

5-16

Description

Typical SIP Application Typical Searchlight Application, Intermdiate Location (Cab with wayside or wayside Only) Typical Searchlight Application, Left Side Approach Location (Cab with Wayside or Wayside Only) Typical color Light Application, Intermediate Location (Cab with Wayside or wayside Only) Typical color Light Applica~ ion, :Hae "A• (Left) APH Interface (cab with Wayside or Wayside Only) Typical color Light Applica~ion, Side •s• (:light) APH Interface ( Cab with Wayside or Wayside •Jnly) Typical Position Light Application, Intermediate Location (Cab with Wayside or waysidP Oniy) Typical Position Light Application, Approach Location (Cab with wayside or waysid~ Only) Typical Electric Lock Application, Right Side Switch (Cab Signal Only) Typical Electric Lock Application, Left Side Switch (Cab Signal Only) Typical Electric Lock Applicatior, Left Side Switch (Cab with Wayside) Typical Electric Lock Application, Right Side Switch (Cab with Wayside) Searchlight Intermediate Un., ~s - ·.:ross seeding Approaches (Cab with Wayside or waysidP Onlyi

639], p. S-1

5-5 5-6

5-7

5-8

5-9

5-10

5-11

5-12

5-13

5-14

5-15

5-16

5-1 7

..., .... "' " " Cl) -"' . .., '<

"' .... 0 "' >-"' :,,

"' "' w "' "' >-"' - .... 0 "' "' ..,. .... 0

.;, :, I

N "' ..,.

"' H () el t'

~ H :, ..,. Cl) '1 ~

0 0 x .... :,

"'

RXD

GND 21

DCD B

GND 9 MJCROLOK/MICROCODE·lil

CURRENT LOOP CABLE ------ii RTI

MICROCODE-Ill UNIT e 1

25-PIN CONN. PORT A OR

PORT B

~~~---ii ------24 TXD ~~-D---,o· ------12

,---

1

•Y-,, "y--, r-- . ________ !XO RXD 'J 16 OCD --------2 .. ---------RTS , I • s RX COM -------~~. ---------RX COM • 1·• 18 SIGGND --------3 .. . ---------

, .. : 1 SE_:J3_(_?M L-,,,,9___ RTS

r-, -.: 13-------~XD ... ---------T~~- -----5 ::4-+f--t-1 -11Ti: 14 ____ cTs -t+, 11 ____ SIG GND rt+: i---:~;:c9M Lt-t. 37-- CTI

u.· ---------DCD ,,,,,_ • 30 --------18 ' L ____ _

25·PIN '"D" PORT A

OR PORT B

- -....... ---c= CHASSIS

GROUND

SHIELD CONNECTED TO EARTH GND AT

ONLY ONE END

A(

MICROLOK 37-PIN "D"'

AT PERIPHERAL

PCB

A HEADS B HEADS COMM COMM

TXD -----10

GND -------12

R1S ------22 GND ------

DCD ------GND -------

11 RXD -------21 GND -------23

MICROLOK CURRENT LOOP

ADAPTER CONNECTOR J2

25-PIN "D"

MICROCODE-111/MICROLOK EJA CABLE (N451458·B 1 OX)

LT TRACK

TSS-101

CMF-101

RELAY (Pl I TRACK I COMM A {\ ---- ---- ---- ----·v· • • • • ---- ---- ---- ----

A HEADS B HEADS RELAY (Pl TRACIC A( COMM COMM COMM A

LT

I _;zj I

/_;zj I! I I -,--ist

® TWISTED.PAIR WIRES NOTE· IEE FIGURE 1-20 FOR MICROLOK TO CURRENT LOOP ADAPTER CABLE

RT

TYPICAL APPLICATION AT MICROLOK INTERLOCKING

SEE FIGURE 6·1 FOR USSP-11. TSS-101 AND

RT CMF-101 INSTALLATION DETAILS.

TRACK

J, ~-11 TSS-101

CMF-101 I I CMF-101

I TRACK B f BATTERY ,4 I BATTERY •

---, 2; ,.,,

50 • . TRACK • BATTERY + BATTERY •

#16 - A I I

~ 8

..., .... "' " "

TYPICAL APPLICATION AT I I WT 0 R RELAY INTERLOCKING, #16

u T SIDE "A" (LEFT) INTERFACE

• • 2 ) p

" "' I N .

I I WH u CAB WITH WAYSIDE SIGNAL R T OR WAYSIDE SIGNAL ONLY #16 s

R I I - 6 -

H >-3 ::, '< ..,.'O " .... "

()

,.,, "' "'

.... ~ >

'O -'O n"' "'

.... r; n

"' "'

,: rT w

,... .......

"' CT O

.... ::,' ::, ~ {I)

'O "' rT '< Ul "'

u1 .... " 1..L .-~ w ro

:,, '<

I I WD R TPSR 2WASR 2EALOR 2EAHR #16 + -812 22 I + J t J t I +

D

#16 .

24

A B 2EBHR #16 I

~2W-1

+ 25 N t > p

BO u . #16 -.......;,

T

/T ' 27 s

WT .)I I I 2W #16 + . 14

0 " H ::,

~~; '< " Ul .... .... 0

"' n ro "" .... ;:, :, :, "'

2E I ET WT H f·, t< ~ TRACK I I #16-.........;_ I I N12 16 -c B A SEE FIGURE 6-1 FOR USSP-11 LOGIC "A"

TSS·101 USSP-11, TSS-101 AND

• • CMF-101 INSTALLATION .... -·~ . ...., iJ} ~· "'

DETAILS • • R CMF-101 CMF-101

ro

• ,,. • -t"

ro ,.,, rT

A( A HEADS B HEADS RE AV CPS TRACK • TRACK BAITERY BATTERY •

r\ COMM COMM CO .-IM A • ------ -----

• • • • • • • • . • v 2~ 1u~ ------------ 50 ' A HEAD~ B HEADS RHAV CPS + TRACK + TRACK BATTERY • BAnERY •

AC COMM COMM COMM A B

Figure 5-3 shows the application of a MICROCODF: III unit to generate cah signal inside an interlocking in conjunction with t'lc O.S. track circuits for shunt and broken rail detection. The MICROCODE III is uset'I only for cab generation; it will not provide shunt detection quickly enough to be used in the interlocking logic circuits. The application requires tuned blocking units connected in series with the de track elements to prevent the MICROCODE III signals from interfering with its operation.

Hlocking unit N451036-1801 is a parallel tuned filter that pr0vines high impedance at 100 Hz and minimal Rat de. Blocking capacitors are also required in series with the MICROCODE III track connections tu prevent the t'lc from interfering with its operation. The value and type of the capacitor is 100,000 mFd, 50 Vdc aluminum electrolytic. For anditional information on o.s. track circuit applications, refer to page 5-37.

" I_LI

-

0.5. DC TRACK CIRCUIT

- I I

I

,1 ,1 /1 ,1 /1 I l_j_ _j_ I I I_L

-- -

TUNED BLOCKING

UNIT

== N451036-1801 -'---J/ TSS-101 / f\ 1TSS-101 1 I I

I I I I CMF-101 CMF-101

_:..::._ I I I ---c_ ~' I MICROCODE MICROCODE Ill Ill

O.S. TO MICRO LOK

CAUTION!!!

COMBINED CAPACITOR AND PCB FAILURES CAN BE UNSAFE. PERFORM PERIODIC TEST ON CAPACITOR OR USE TRANSFORMER (I.E. US&S W-400)

Figure 5-3. Application of MICROCODE-'II tn Generat0 Ca,, Signal rnsirle Interlocking in Conjunct::·~n wot;1 DC o .. .s. (j r,;uit

639], p. . -4

-

"' .... "' "' " fl) "' I .. .

"' w >-3 "' '< .... 'O ....

" 'O I)) . .... "' -...·) I H "' "' :,,

'O ·a .... ,.,. (l

"' er AC ,.,. 0 :, .n. v

AC

LT

A HEADS B HEADS RELAY CPS COMM COMM COMM

• • • • ---

A HEADS B HEADS RELAY CPS COMM COMM COMM

RT

SEE FIGURE 6·1 FOR USSP-11. TSS-101 AND CMF-101 INSTALLATION DETAILS .

LT TRACK

TSS-101 I I

I • CMF-101

TRACK A

• -··

+ TRACK . A

RT TRACK

TSS-101 I I

• T CMF-101

TRACK B

• + TRACK .

B

I I USSP-11

CMF-101

BATTERY

--·

~ • ,; \.,; so ..

BATTERY +

r TYPICAL SIP APPLICATION I

BATTERY •

• BATTERY •

SIG W

#9

..., A+ WHD (Y) .... ul c:: MECH NWHD (G)

"

SIG WA A SIG EA #9 '];{' #9 A ..., .... WAHO (YI EHD (YI u'.l A+ 6 P 5 A+ c: ... MECH u MECH Cl) NWAHD (GI

8 i 7 NEAHO (GI u, A· A-I "' WAYP + + EGP . 18 21 ·

~>a

I I WAGP 23:t+J 0' 2 4 s (] ::r 14

I I I A H~AO~ B HtO~ I I t TR:CK t t TR;CIC t-< CO M CO M 0 WBRP (] N12 16 ll> M" ....

I I 0 TYPICAL SEARCHLIGHT SIGNAL APPLICATION I I ----::,

LEFT SIDE APPROACH LOCATION A HEADS B HEADS I I .. TRACK TRACK COMM COMM 4 ' CAB WITH WAYSIDE SIGNAL OR WAYSIDE SIGNAL ONLY

"' ,.,. '° c: ,., (1)

u, I

-.! . _., (1'< "''1l tr,-,.

" .: "' ,-,.,... c1" ::r (1

0 ::.: f-' "'0 ' p < 5

u

0 \/4----( R # 9 4 I ; I 3 ~ R

LT RT l

_.;J I

J I R -------·--·· A

AC AH ADS B HEADS RELAY CPS

;\ CO M COMM COMM

• • • • • v A HEADS B HEADS RfLAY CPS AC COMM COMM COMM "

L-. -

I LT

TRACK

I TSS-101 I I

I . CMF-101

TRACK A

• TRACK A

I

TYPICAL COLOR LIGHT APPLICATION INTERMEDIATE LOCATION

CAB WITH WAYSIDE SIGNAL OR WAYSIDE SIGNAL ONLY

RT TRACK

I I USSP·11

SEE FIGURE 6-1 f USSP-11, TSS-101

TSS-101 CMF-10: INSTALL . . DETAILS. • • CMF-101 CMF-101

TRACK BATTERY BATTERY • 8

-:Jl.: " • II • 2l 1u< ... TRACK 50 ·•

8 BAITERY • BATIERY •

OR AND ATION

..,,

..... "' c: " u, I

co

->-3 n> .... ::S:'O - W'O

>

"' .... "' c " C1l "' I "" . _..,

no..:: 0, 'O O'~·

0 ,: 0, .... ,... rT ::,'()

0 :e: ..... 0, 0 '< " "' ..... t"' n,...,. C1l"'

"' :," w O rT "" " ..... >

=

"' ..... "' " " (1) u, I .....

0

-8 0'< lll 'Cl ,,.. ...

(l

,: lll .......... ..,. ::,""'

0 ::;: "' lll ..... '

A :r9 _ I :YI G +::~ ,9 8

O I 1 I . ,9 MKR ..., 2 u ....

T cC c: R ~ i I R .., #9 : '" u ........

I I MKR " ~ T I I . #9 :,' 'O p

0 I u ::,; ti) LT RT '" .... T I I

R '< " s I I - #9 ti) .... 3

"' ,..,o I w "':, Ft

.:I

...,

..... ca ,:;

TWISTED PAIR CABLE -r---· i- -- - -- ---- --- --- --- -- - .. -- - -~1

0 c + I I ~0 u T

[ 8 [':::,; I WL I : p u PADLOCK CONTACT : T r-------, ' s ' ' '

I ·--- ' ' ' ' "

..., ,... "' " " " U1 I

>-"' w .

->'l O'<

"'"' O" ,... " rn"' ,.. . ...,

"' ::, "' "' "'>-"' w .... " "' " >-"' 0""

~ '""l 1-· 1 ..

"' '< " • - t"' "' 0 I n .... " ....

:,,

"' "' >-"' ,... " "' ..,. ,... 0 ::, . C"'

" ,..., c,-rn ,... C,

"' rn ,: ,... ..,. " :,"

0 u T p

u T s

I N p

u T s

B

[ 8

I + NWP 13

NNWP

~-- TWISTED PAIR CABLE ---i-- --- --- -- -- ---- - ----- - -----~ l

I • 1 1 + 1 , : 0 ~ JwLJ

PADLOCK CONTACT r--------, : ·- - ~;! ... ~·-~· -----: I I

•--.._,- I ' ]

15 &+-~~~~~~~~~~~ ....... ~ i [':::,; =-, B 1 2

17

19

+ AOTP

I I

i SW CC L-------..J

AOTR 812

el ~

NAOTP

I I

: N12 :.;-r-

' ' ' ' ' ' : N12 I ' ~----------------------------~

A

TYPICAL ELECTRIC LOCK APPLICATION LEFT SIDE SWITCH

CAB SIGNAL SYSTEM ONLY

B

~TA~T~ I TR

SEE FIGURE 6-1 FOR I I I I USSP-11. TSS-101 AND USSP·11 I BT

CMF-101 INSTALLATION + . DETAILS . TSS-101 TSS-101 .

AT . I + • . . .

K 0 • I I I CMF-101 CMF-101 CMF-101 AC A HEADS 8 HEADS RE .AV m TRACK TRACK BAITERY BATIERY •

(\ COMM COMM co 'M A B ------ -..n:

• • • • • • ;- • v " 21 11F --- --- --- --- so . A HEADS 8 HEADS RELAY m • TRACK • TRACK COMM COMM COMM A B BATIERY • BATitRY • AC

"' ..... "' " " " U1 I .... ... .

-"' f,:~ O'>-'•

()

,: "' ......... rr ::,- '" "' .... w ::,; " .., "' () .... '

"' I-'• "' " " -3 Cl'< "''O O" I-'•

" ,: "' ........ ..,. ::r 1:,:1 ,_,

"' ::e:

..., ,... "' " " (1) "' I ..... "' .

- "' () (1) "'"' 0-"

" >: :r ,.. ...... rT ,...

"""' :r ::,: rT "' '

5.4 PIECE NUMBER REFERENCES FOR HARDWARE CONFIGURATIONS

Figure 5-17 (covers three pages) provides top piece number references for the various configurations of the MICROCODE-III N451667-2XXX series units. The ~igure begins on page 5-19.

6391, p. 5-18

. -~~ ... ~ ..... ~ .. ~ ... MICROCODE-Ill UNITS

REF DESCRIPTIO

microcode-ill - hitachi rail · microcode-ill microprocessor-based coded track circuit system...

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