alphaconnect technical manual

AlphaConnect 48 Technical Manual

Alphatron Marine B.V. Rev. 1 2006-05-16

AlphaConnect 48 Technical manual

ALPHATRON MARINE BV

SCHAARDIJK 23 P.O. BOX 21003 T DIRECT +31 (0)10-4534068 RABOBANK 38.18.29.065

3063 NH ROTTERDAM – HAVEN 115 3001 AA ROTTERDAM F DIRECT +31 (0)10-4529214 KVK 24182635

THE NETHERLANDS THE NETHERLANDS E [email protected]



Contents

Contents ........................................................................................ 2

1. Introduction............................................................................ 5

1.1 General description................................................................ 6 1.1.1 Mechanical drawing ................................................................. 6 1.1.2 Inside the AlpaConnect 48........................................................ 8 1.1.3 Power supply and alarm relay connection ................................... 8

1.1.3.1 Power supply....................................................................... 9

1.1.3.2 Alarm relay ......................................................................... 9

1.1.3.3 Fuses ............................................................................... 10

1.1.3.4 Fan drive .......................................................................... 10 1.1.4 Connecting extension lines and trunk lines ............................... 10

1.2 System components .............................................................16

1.3 Installation wiring diagram ....................................................16

1.4 Principle of operation ............................................................17 1.4.1 Technology ....................................................................18 1.4.2 Making calls using analogue telephones ................................18 1.4.3 Satellite calls..................................................................18 1.4.4 Call Data Management......................................................18 1.4.5 Public address calls ..........................................................18 1.4.6 Alarm distribution............................................................18 1.4.7 Command group calls .......................................................19 1.4.8 Time distribution .............................................................19 1.4.9 Power supply arrangement.................................................19

1.5 Key system operational features ............................................19

2. AlphaConnect 48 Maritime Communication System................21

2.1 Circuit boards ......................................................................21

2.2 Electrical interfaces...............................................................21 2.2.1 Extension lines electrical interface .......................................21 2.2.2 Trunk lines electrical interface ............................................22 2.2.3 ISDN30 interface.............................................................22 2.2.4 Audio In/Out electrical interface ..........................................22 2.2.5 Network connection..........................................................22 2.2.6 USB connection...............................................................22 2.2.7 Optional serial port connection............................................22 2.2.8 Power and system ...........................................................22 2.2.9 Alarm relay output...........................................................23 2.2.10 Ring relay unit ................................................................23

2.3 System installation programming ...........................................23

2.4 The Call Data Manager ..........................................................23

3. Technical data .......................................................................24

3.1 Dimensions and weight .........................................................24

3.2 Power supply .......................................................................24



3.3 Power consumption (approximately at 28 V DC).......................24

3.4 Extension lines.....................................................................24

3.5 Trunk lines ..........................................................................24

3.6 Environment ........................................................................24

4. System installation ................................................................25

4.1 Environment ........................................................................25

4.2 Mounting the unit .................................................................25

4.3 Wiring the unit .....................................................................26

4.4 Power supply and alarm relay connection ................................26

4.5 Connecting extension lines and trunk lines...............................27

4.6 Connecting the FIO Audio In/Out facility..................................28

4.7 Network connection ..............................................................28

4.8 Connecting local VDU, keyboard and mouse.............................28

4.9 Grounding considerations ......................................................29

4.10 Installing boards of a new AlphaConnect 48 system ...............30

4.11 Installation of additional boards...........................................30

4.12 Connecting the cable termination units.................................30

5. Technical manual...................................................................32

5.1 Functional block diagram.......................................................32 5.1.1 On switch and indicators ........................................................ 32 5.1.2 SMPS converters ................................................................... 33 5.1.3 Powers supervision................................................................ 33 5.1.4 Temperature supervision........................................................ 33 5.1.5 CP watchdog......................................................................... 34

5.2 CP1 ....................................................................................34 5.2.1 Layout ................................................................................. 35 5.2.2 Reset................................................................................... 35 5.2.3 Display connector.................................................................. 35 5.2.4 Keyboard / Mouse ................................................................. 35 5.2.5 Network ............................................................................... 35 5.2.6 Com 1 ................................................................................. 35 5.2.7 User guide............................................................................ 35

5.3 CP2 ....................................................................................35 5.3.1 Layout ................................................................................. 36 5.3.2 Reset................................................................................... 36 5.3.3 Network ............................................................................... 36 5.3.4 USB..................................................................................... 36 5.3.5 Com 1 ................................................................................. 37 5.3.6 Activity indicators.................................................................. 37

5.4 2 line FIO board (Flexible In Out board) .................................37 5.4.1 Layout ................................................................................. 38 5.4.2 Functional block diagram ....................................................... 39 5.4.3 Switches and indicators.......................................................... 40 5.4.4 Jumper settings .................................................................... 40

5.4.4.1 FIO channel jumper setting ................................................ 40



5.4.4.1.1 2 wire analogue trunk interface ....................................... 41

5.4.4.1.2 Audio In/Out interface.................................................... 41

5.4.4.2 RS485 / RS422 jumper settings........................................... 41

5.4.4.3 Master / slave FIO selection ................................................ 41 5.4.5 Lines connector..................................................................... 42

5.5 8 line analogue extension board .............................................43 5.5.1 Layout ................................................................................. 43 5.5.2 Indicators............................................................................. 45 5.5.3 Lines connector..................................................................... 45 5.5.4 Jumper ................................................................................ 45 5.5.5 Alarm generator.................................................................... 45 5.5.6 Layout ................................................................................. 47 5.5.7 RJ45 connector pin out .......................................................... 47 5.5.8 Status indicator field.............................................................. 47 5.5.9 Serial debug and board configuration connector ........................ 47

5.6 Ring relay unit .....................................................................48

6. Service ..................................................................................50

6.1 Preventive maintenance ........................................................50 6.1.1 The physical installation ....................................................50 6.1.2 File system of the CP board disk..........................................50 6.1.3 Disk space checkouts........................................................50 6.1.4 Call data maintenance ......................................................50

6.2 List of recommended spare parts............................................50

6.3 Equipment required to perform service....................................50

6.4 Trouble shooting, a step by step approach...............................51 6.4.1 Power supply check..........................................................51 6.4.2 CP board check ...............................................................51 6.4.3 FIO master board check ....................................................51 6.4.4 Extension board and FIO board check ...................................52 6.4.5 Checking that the AlphaConnect 48 is operating......................52

6.4.5.1 Checking extension lines: ...............................................52

6.4.5.2 Checking trunk lines......................................................52

6.4.5.3 If nothing seems to work................................................53



1. Introduction

The AlphaConnect 48 is a fully digital integrated telephone exchange and on board communication system. The system integrates the below communication functions:

• Telephone exchange

• Public address system

• Command system (Talk back)

• Alarm distribution

• Time distribution and wakeup

• Call Data Management (registering satellite calls)

The equipment fits into a 400x300x200 mm box protected to category IP22, and its supply is 24VDC and 115/230V AC (optional). The AlphaConnect 48 has been developed to conform with the International Electrotechnical Commission standard IEC 60945 equipment class B (protected).

This manual holds an overall system description, followed by a technical manual for the AlphaConnect 48.

Manuals for the AlphaConnect 110, AlphaConnect 120 and AlphaConnect 210 are enclosed in their own documents.



1.1 General description The AlphaConnect 48 is a telephone and communication system created for use on board ships. It has a robust design and has features often to be used on board ships.

The AlphaConnect 48 comes as an 8 extension and 2 trunk line system, but it can be extended to maximum 56 extensions and 2 trunk lines. More trunk lines can be added, reducing the possible number of extensions.

1.1.1 Mechanical drawing The AlphaConnect 48 box has the outline as shown below.

The AlphaConnect 48 box

IMPORTANT NOTE: The AlphaConnect 48 is ventilated through the slot at the rear of the cabinet. It is important to keep a distance of minimum 20mm between the backside and the bulkhead.



The figure below shows how the mounting holes are arranged. 6mm bolts are to be used for mounting the unit to a bulkhead.

Mounting the AlphaConnect 48

In order to make easy access to the cable termination area on the interior back of the AlphaConnect 48 system, the board magazine is arranged as a swing frame. The figure below shows the space needed in order to allow the board magazine to swing out.

Space is needed for the swing frame.



1.1.2 Inside the AlpaConnect 48 The Figure below shows the back of the AlphaConnect 48 – inside.

Inside the AlphaConnect 48

By far the most of the back is covered by the cable termination area used for connecting the telephone lines. Down to the right is the power input module (PIM) which connects power and alarm relay.

In the bottom, 2 cable glands are found to conduct the power supply cables, and a rectangular door, which is used to carry cable glands for conducting the telephone wires. Holes are drilled in this door depending on the size of the cables used.

On the bottom of the AlphaConnect 48, there is a fan cut out for mounting an auxiliary fan. This fan is recommended if the area, covered by the pink box above, is used for an internal AC/DC converter.

1.1.3 Power supply and alarm relay connection The AlphaConnect 48 is meant for dual supply, a main supply often taken from the generator of the ship, and a battery back up supply often taken from the radio battery of the ship.

The two supplies are taken through the cable glands in the bottom of the cabinet, and connected to the Power Input Module (PIM). The PIM is located low right at the interior backside of the system.

The figure below shows the PIM module:



Layout of the PIM power input module.

1.1.3.1 Power supply The J1 connector is the one to connect power, and the pin layout is described in the table below:

Pin name Use

M+ 24V DC main supply positive terminal

M- 24V DC main supply negative terminal

B+ 24V DC battery supply positive terminal

B- 24V DC battery supply negative terminal

NC Alarm relay output. Normal closed terminal

C Alarm relay output. Center terminal

NO Alarm relay output. Normal open terminal

F+ 24V DC output for auxiliary fan

F- 24V DC output for auxiliary fan

Note that the AlphaConnect 48 creates galvanic connection between main and battery.

1.1.3.2 Alarm relay 3 terminals of the PIM module J1 are devoted the alarm relay. The alarm relay is activated whenever only one of the power supplies are present, or whenever the power supply of the AlphaConnect 48 board magazine decides to send an alarm indication. This could be caused by high temperature, faulty power supply operation or software break down.

If the AlphaConnect 48 is operated on a single supply, loops between the M+ and B+ and M- and B- must be set, otherwise the alarm relay will stay in alarm state.

The red indicator D4 will be lit when the alarm relay is in alarm state.



1.1.3.3 Fuses The PIM module creates 2 fused outputs, one for the AlphaConnect 48 board magazine, and one output on the 4 terminals of the J3 connector marked V+ and V- The V+,V- are for general use. (RRU etc.)

The V+ and V- output voltages are fused by F1 and F2 and indicated by D3.

The 24V DC supply for the board magazine is fused by F3 and F4 and indicated by D2.

All these fuses are 2A.

1.1.3.4 Fan drive F+ and F- can be used to drive an auxiliary fan, and will the be controlled by the temperature inside the AlphaConnect 48.

1.1.4 Connecting extension lines and trunk lines On the rear of the AlphaConnect 48, the cable termination area is found. Ship cables are taken through cable glands of the small door in the bottom of the cabinet, the wires are split, and the shield connected to the ground screw terminal inside the box.

Up till 4 CTU2 circuit boards can be fitted, giving a total of 64 possible 2 pair terminations.

The figure below shows the cable termination area with reference numbers. The figure is used for reference when using the tables of the following pages for documenting the connections to the AlphaConnect 48 system.

1 3

2 4

PIM



The following sheets are used when connecting the telephone lines.

Sections of the CTU2 circuit boards



Termination unit 1 T# Lab Call Description

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1.2 System components

A full featured AlphaConnect communication system consist of a selection of the below listed components:

Equipment Description Order number

AlphaConnect 48 Scalable central unit 1000-000-0802

Eltek SMPS700 28V DC power supply with battery backup switchover

1000-400-0070

Alphatron TX-250 Analogue telephone set with display 1000-400-0010

AlphaConnect 110 A 1W PA speaker panel for use in cabins and offices or other non noisy areas

1000-500-0010

AlphaConnect 120 A 10W public address amplifier unit used for driving loudhailers or public area speakers in larger rooms, noisy rooms or even outdoor on deck.

1000-500-0020

AlphaConnect 210 A command group unit used for implementing command group calls (Talk back), using semi-duplex PTT operated conferencing.

1000-500-0000

Loudhailers 10W heavy duty horn speakers for use with AlphaConnect 120 or AlphaConnect 210

1000-400-0100

Headsets Ear protecting headset to be used with AlphaConnect 210. The headset has a PTT button on the left side ear cup, and a noise cancellation microphone. For noisy area wired communication.

1000-400-0200

Public area speakers A 5W bulkhead mounted loudspeaker 1000-400-0110

Only one AlphaConnect 48 is needed. This unit is a scalable unit, where circuit boards are inserted to suit the needs of the particular vessel. The telephone lines conducted from the unit are connected to telephone sets and PA amplifier units as needed for the vessel. The system is thus scaleable and configurable using the building blocks listed above.

1.3 Installation wiring diagram

Connect the system components into a functional communication system is shown in the figure 1.



AlphaConnect48

Public areas

AC 210

Power supply: 115 /230V AC and 28V DC battery

Satellite (analog/ISDN)

AC 110TX-250

AC 110TX-250

Bridge and offices

AC 120

AC 120

AC 120

Loudhailer

Deck

AC 120

Loudhailer

Machinery spaces

AC 110TX-250

AC 110TX-250

Cabins

AC 210

AC 210

AC 210

Data network

Figure 1 Wiring diagram. Red wires carry 24V DC, black wires are 2 wire extension lines

1.4 Principle of operation

This chapter gives a brief description of how main functions are implemented in the AlphaConnect 48 system



1.4.1 Technology

The system makes use of microprocessor technology. All circuit boards, like extension boards and trunk boards, all have their own microprocessor.

The AlphaConnect 48 is controlled by an industrial computer running Windows XP embedded on a non rotating FLASH disk which is write protected to prevent operating system damage.

All stations: AlphaConnect 110, AlphaConnect 120 and AlphaConnect 210 are controlled by microprocessors.

All telephones are plain old telephones using 48V DC line feed and 80V AC ringing, FSK signalling can be send to the telephones in order to pass display inform.

1.4.2 Making calls using analogue telephones

The recommended telephones are the Alphatron TX-250. These telephones, which are plain old analogue telephones, have a display showing calling number, calling party name and date and time. Push buttons sending DTMF tones are used to dial. Calls are made as with any other analogue telephone or PABX system, by lifting handset, dialling and awaiting the call to be answered. Ringing is send to the called extension using 80V AC 50 Hz.

1.4.3 Satellite calls

The system includes an analogue trunk function. This is a 2 wire trunk system using 48V 25mA DC line feed and 80V AC ringing signalling. DTMF tones are used to pass digits to and from the trunk line. The trunk function is used to interface to satellite terminals, GSM equipment and plain old analogue shore lines.

1.4.4 Call Data Management

A Call Data Management system is provided giving the possibility of controlling the cost of satellite calls. A network connection to the system gives access to the call data base on the disk of the AlphaConnect 48 system.

1.4.5 Public address calls

Public address calls is initiated from any extension by calling a paging group number. The PA call will be initiated by a “gong” sound. There are 4 gong sound to chose among. The gong sound is generated by software by the microprocessor of the extension boards on command from the AlphaConnect 48 CP. The extensions participating in the paging call will listen to the PCM timeslot selected for paging on a broadcast basis.

Several paging calls can be conducted simultaneously. Each installed paging call can be given one of 3 levels of priority. Each AlphaConnect 110, AlphaConnect 120 and AlphaConnect 210 can, when hanging on its own extension line, participate in one ore more paging calls. Paging calls will overrule alarm signal calls unless given the priority “Low”.

The AlphaConnect 48 will send commands to the AlphaConnect 110, 120 and 210 units using out of voice band signalling on the extension lines.

The AlphaConnect 110 unit is meant to be used in cabins and office areas with low ambient noise level. This unit has a 1W speaker and amplifier. When addressing larger areas or areas with high ambient noise, the AlphaConnect 120 speaker amplifier is used together with one ore more speakers or loudhailers.

1.4.6 Alarm distribution

Distributing alarm signals are carried out using the public address functions, but instead of distributing voice to the broadcast PCM timeslot, an alarm tone generator is connected. The alarm tone generator is implemented in software, and one generator is found for



each analogue extension board installed. The alarm can be initiated by a closing contact, or by lifting the handset of an extension, dialling the desired alarm tone number. 7 types of alarm tones can be generated and 3 levels of priority is available. Alarm calls will override paging calls of level “low”, whereas paging calls of any other priority will override alarm tone distribution. The AlphaConnect 110, 120 and 210 can participate in one or several alarm tone calls selected separately for each extension line to which the unit is connected. When initiating the alarm tone from a telephone, the alarm call can be swapped into a paging call sending a voice message and back into an alarm tone distribution call by the use of the R button.

1.4.7 Command group calls

The AlphaConnect 210 unit is used to implement the classical “Talk back” functions. The unit has one single push button used for calling a preset phone number or for answering a call and ,when in conversation, for PTT function. The loudhailer to be connected to the AlphaConnect 210 is used for speaker and for microphone when the PTT is pressed. The user have to speak into the loudhailer. A system for setting up a command group conference is provided. Up till 10 AlphaConnect 210 can participate under control by one master extension initiating the call. The righ to speak to such a group is gained by pressing the PTT button of the AlphaConnect 210 unit. The control of the AlphaConnect 210 unit is carried out using out of voice band signalling on an standard extension line. The AlphaConnect 210 has a relay output for driving rotating light beacons and a bell.

1.4.8 Time distribution

The AlphaConnect 210 includes time distribution and wakeup calls. When the local time is updated, the telephones having a time display will receive the new time information using FSK signalling. (FSK means frequency shift keying using 1300 and 2100 Hz. The FSK message has a typical duration of 0.5 – 1 second, always send when a phone is on hook (idle))

1.4.9 Power supply arrangement

The system is powered by 24V DC backed up by an 24V DC battery voltage.

The full AlphaConnect 48 system, including AlphaConnect 110, AlphaConnect 120 and AlphaConnect 210 units must be supplied from a central power supply and will use a system common ground reference.

1.5 Key system operational features

The AlphaConnect 48 system has the below operational features:

• On board calls from one extension to another

• Priority call breaking down ongoing conversations

• Calls via connected satellite equipment (incoming as well as outgoing)

• Call transfer to 3rd party

• Call Data Managing (logging external conversations)

• Group ringing

• Call pickup

• Wake up calls

• Time distribution

• Short numbers



• Call time setting function for system time adjustment

• Public address calls

• Alarm tone distribution

• Command group conference calls

• Configuring via USB-disk or ethernet



2. AlphaConnect 48 Maritime Communication System

The AlphaConnect 48 is the central part of the Maritime Communication System. It is a fully digital telephone exchange with analogue interfaces to telephone extensions and analogue interfaces to external communication lines (satellite, shore and cellular etc) and connection to ISDN primary rate lines. The AlphaConnect 48 can connect up to 48 extensions. The equipment fits into a 400x300x200 mm box protected to category IP22.

The AlphaConnect 48 has been developed to conform with the International Electrotechnical Commission standard IEC 60945 equipment class B (protected).

This manual does not cover the AlphaConnect 110, AlphaConnect 120 and AlphaConnect 210 which are having a manual of their own.

2.1 Circuit boards

The AlphaConnect 48 system is modular and fully configurable. The system consists of circuit boards each holding a number of facilities. These boards are selected to build a customised exchange that fits the needs of the vessel. The following boards are available:

• Power supply

• CP board

• 2 line FIO board (trunk lines for external communication lines - satellite, shore, cellular and Audio In/Out for interface to external PA systems

• 8 line extension boards (connecting telephone sets and to the AlphaConnect 110, 120 and 210 units.

• ISDN30 primary rate board

A minimum system requires 1 power supply, 1 CP board, 1 FIO board. At any time, new boards can be added, up to the maximum, if the needs of the vessel should increase.

2.2 Electrical interfaces

The electrical interfaces can be divided into 4 categories:

• Extension lines / PA driving lines / CG unit lines

• Analogue Trunk lines

• ISDN trunk line

• Audio In/Out

• Network interface

• USB interface

• Serial port

• Power and system interfaces

• Alarm relay output

• Ringing relay units

2.2.1 Extension lines electrical interface

The analogue extension boards has an interface based upon the ETS 300 001 standard. This interface matches most analogue telephone sets found. Principal electrical specification are

• -48V / 20 mA DC line feed

• 80 V 50 Hz AC ringing signal



• DTMF and loop disconnect dialling

• No galvanic isolation is provided

• PA speaker communication for driving bed side speaker panels or PA amplifier units

2.2.2 Trunk lines electrical interface

The FIO board can make up a 2 wire analogue trunk interface, the electrical properties of which are based upon the ETS 300 001 standard. Principal electrical specification are

• Line feed > 24 V DC / < 100 mA

• 50 Hz AC ringing signal > 40 V rms

• DTMF dialling incoming as well as outgoing

• Galvanic isolation provided

2.2.3 ISDN30 interface

The ISDN trunk card implements a 30 channel ISDN interface towards public switched network or satellite terminals.

The ISDN30 conforms to the ETSI standard G703 and the signalling protocol is EURO_ISDN.

2.2.4 Audio In/Out electrical interface

The FIO board can make up a 4 wire analogue in/out facility. The principal electrical specifications are:

• 600 ohm galvanic isolated input

• 600 ohm galvanic isolated output

• Audio level –10dBm nominal (approx 250 mV)

• Opto-isolated call initiating input

• Relay output

2.2.5 Network connection

The AlphaConnect 48 system has a standard RJ-45 10base-T Ethernet interface.

2.2.6 USB connection

The AlphaConnect 48 system has 2 USB connections when using the CP2 board. These connections can be used for attaching an USB disk transporting configuration data in/out of the system using the ‘USB_UpdateAgent’ application.

2.2.7 Optional serial port connection

One single serial port (RS232 level) is available. This port can be used for the CTI system (Computer Telphony Integration) where an external computer can control events in the AlphaConnect 48, or it can be used for interfacing to a master clock system used for setting the system time. The ‘NMEA_TimeReceiver’ application has to be used.

2.2.8 Power and system

The AlphaConnect 48 is powered from a 24 - 32 V DC supply. A parallel a 24 - 32 V DC battery backup input is provided. When the system is powered from a 230V-24V DC power supply, normally the main 24V DC input is used.



The power consumption depends on the AlphaConnect 48 configuration, and ranges from 35 W, for a minimum system, and 150 W for a full sized system. The power to the AlphaConnect 110, 120 and 210 units not included.

Note ! NO galvanic isolation is provided between the DC power ground and the extension lines.

2.2.9 Alarm relay output

A normally closed relay contact output is provided. In case of detected system errors, such as system off, power supply overheat, equipment ambient overheat or power supply voltage levels errors, this relay contact is opened.

2.2.10 Ring relay unit

A single or 4 channel ring relay module for mounting internal to the AlphaConnect 48 is available. The module has 4 normal open relay contacts witch is activated by extension lines ringing.

2.3 System installation programming

System programming of the AlphaConnect 48 system is carried out using the “MXconfig” software tool delivered with your AlphaConnect 48. This tool is a Windows application.

Access to the mx.mcf file, in which all the configuration data are found, is gained via the network connector found on the CP board of the AlphaConnect 48 system, or when using CP2 as central processor, the configuration file can be transferred using an USB disk plugged into the USB port of the CP2.

Refer to the AlphaConnect 48 Configuration Manual for a full manual covering system programming.

2.4 The Call Data Manager

The Call Data Manager (CDM) is a software package, which can be delivered as an option with the AlphaConnect 48 system. The CDM system gives the user the following possibilities:

• Outgoing calls via trunk lines can be logged into a cal data database

• Call charges can be calculated and logged with the call data logging system

• All connected calls can be invoiced using the invoice printing system of the CDM.

Refer to the AlphaConnect 48 Call Data Manager Manual for further details.



3. Technical data

3.1 Dimensions and weight

With: 40 cm

Height: 30 cm

Depth: 20 cm

Weight: 15 kg

3.2 Power supply

Recommended: 30 V DC

Range: 24 – 32 V DC

Galvanic isolation: Must be provided by the power supply

3.3 Power consumption (approximately at 28 V DC)

8 extensions/2 trunk lines stand by: 0.8 A

8 extensions/2 trunk lines peak: 1.4 A

64 extensions/4 trunk lines stand by: 1.4 A

64 extensions/4 trunk lines peak: 2.4 A

3.4 Extension lines

Minimum wire dimensions: 0.25 mm2

Maximum wire dimensions: 1.5 mm2

Maximum wire length: 1200 m

Line feed voltage: 48 V DC

Line feed current: 20 mA

Ringing voltage: 80 V 25 Hz

Ring drive capacity: 3 x (10k in series with 1 uF)

Signalling: Conforms to ETS 300 001

Proprietary signalling for PA activation

3.5 Trunk lines

Minimum wire dimensions: 0.25 mm2

Maximum wire dimensions: 1.5 mm2

Maximum wire length: 1200 m

Signalling: Conforms to ETS 300 001

3.6 Environment

Environment Protected only

Compass Safe Distance > 5 meter

Enclosure IP22

Temperature range - 15 deg. C to + 55 deg. C



4. System installation

This chapter describes how to install the AlphaConnect 48 system.

Installation of the AlphaConnect 110, 120 and AlphaConnect 210 is covered by a separate manual.

4.1 Environment

Mount the unit in a place without excessive heat or vibration. Temperatures above –15 and below +55 degrees Centigrade are acceptable. Note that operating the equipment at high temperatures may reduce system lifetime.

DO NOT mount the unit close to compass or VHF / HF radio installations.

4.2 Mounting the unit

The unit is to be mounted on a vertical bulkhead using the 4 fittings delivered with the equipment.

Extension line entry area

Power supply, network and alarm relay entry area

Figure 3 Mounting the AlphaConnect 48



4.3 Wiring the unit

The figure 4 below shows the interior of the AlphaConnect 48 enclosure, emphasizing the points of connection.

Cable termination unit

Power supply connection unit

Shield ground connection point Strain relief anchors

Cable fixing anchors

Cable termination area

Figure 4 connecting the AlphaConnect 48 inside the enclosure.

4.4 Power supply and alarm relay connection

The power supply, the battery backup supply and the alarm relay output are connected to the power supply connection unit.

Recommended wire dimension is 1,5 mm2.

Use the strain relief anchors with a cable strip in order to fix the power input cables. Figure 5 below shows the lay out of the power supply connection unit

1

LAN

COM (Option) Power and alarm relay

Main +24V DC fuse 10A

Battery fuse 10A

Figure 5 The power supply connection unit.

The table below shows the pin-out of the power and alarm relay contact.



Terminal Use Fuse

1 24V DC battery backup input positive terminal 10 A

2 24V DC battery backup input negative terminal None

3 24V DC main input positive terminal 10 A

4 24V DC main input negative terminal None

5 Alarm relay (NC) terminal A None

6 Alarm relay (NC) terminal B None

The power connection unit also holds 2 fuses 10 A for the 24 V DC inputs.

4.5 Connecting extension lines and trunk lines

The telephone lines are connected using the cable termination units. The extensions and trunk lines are connected by 2 wires, which are arranged as “over and under” in pairs. These units are typically arranged so that the 2 leftmost pairs of terminals are devoted trunk lines, and the rightmost 16 pairs of terminals are devoted extension lines. This arrangement fills the capacity of the cable termination unit.

The figure 6 below shows the cable termination unit (CTU) of a 16/2 AlphaConnect 48 system. 2 x

Trunk lines

8 x Extension lines board #1

8 x Extension lines board #2

00 01 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Default call numbers Bottom-most individual

of the FIO trunk board

Bottom-most individual of extension board #1

Bottom-most individual of extension board #2

Figure 6 Showing the layout of the cable termination unit of a 16 extensions + 2 trunk line system

The bottom-most individual of a board refers to the connector at the front of an AlphaConnect 48 board. The bottom-most set of 2 wires connecting to, as an example an extension, belongs to the first individual of a board. First means having the lowest physical address and the lowest default call number.

Which telephone number connects to which terminals are determined by the system configuration.



4.6 Connecting the FIO Audio In/Out facility

When an FIO board is to be configured with an Audio In/Out channel, the board is connected to the CTU via the FIO-general cable. This cable conducts all wires from the FIO front connector to the CTU unit. The figure 7 below shows the cable termination in this case.

Refer to table for

pin-out

Pin 2

Pin 1

Figure 7 The CTU layout when connected to the FIO using the FIO-general cable. The table found paragraph 5.4.5

The pin-out corresponds to the pin-out of the front connector of the FIO board. Refer to the table found in paragraph 5.4.5.

4.7 Network connection

The LAN connector of the system is located on the power supply connection unit. This unit is shown figure 5. Only use shielded cable connecting via an RJ45 male connector. When using the CP2, the network connector is located at the front of the CP2 board.

WARNING ! ALWAYS CONNECT THE ALPHACONNECT 48 SYSTEM BEHIND A PROPERLY CONFIGURED FIREWALL.

4.8 Connecting local VDU, keyboard and mouse

The CP1 board has local connection to CRT display keyboard and mouse. The CP2 has not. Use WinVNC or remote desktop to get access to operating the system locally.



4.9 Grounding considerations

The figure 8 below shows the grounding of the system.

AlphaConnect 48 box connected to hull of ship

!

AlphaConnect 48 power ground

Communication equipment

Bridge alarm system

24 V backup battery

+ _

Extension

Trunk

Alarm relay

AC 110 Etude 30

PS4655

AC 120 Loudhailer

AC 210

LAN

Network

Figure 8 Grounding overview.

It is recommended, although not a requirement, that shielded cable is used for extension connections. The shield must be connected to the box of the AlphaConnect 48 system using the grounding screw inside the AlphaConnect 48 enclosure, and left unconnected at the far end near the telephone set. There is NO galvanic isolation between the extension wires and the power ground of the AlphaConnect 48 system.

It is recommended, but not a requirement, that trunk lines are routed to the communications equipment using shielded cable. The shield must be connected to the box of the AlphaConnect 48 system using the grounding screw inside the



AlphaConnect 48 enclosure, and left unconnected at the far end near the communication equipment. The trunk line IS galvanic isolated from the power ground of the AlphaConnect 48 system.

When installing AlphaConnect 110, AlphaConnect 120 and AlphaConnect 210 units, these units must be powered from the same power supply as the AlphaConnect 48 system itself. Although these units can be supplied from a local 24V DC source, problems could arise if the local DC power source has an AC or DC common mode voltage potential relative to the power supply of the AlphaConnect 48. Using local power should be avoided and only used when absolutely necessary, and in this case the local DC power supply for the AlphaConnect 110, 120 or 210 should be tested for common mode voltages.

Al shielding are connected at the AlphaConnect 48 end only. When installing AlphaConnect 110, 120 or 210, the shield is terminated at the PCB carrying metal plate found in these units. Refer to the manuals for these units.

4.10 Installing boards of a new AlphaConnect 48 system

Whenever a new AlphaConnect 48 is to be assembled, the following boards must be installed to form an 8/2 AlphaConnect 48 communication system.

1. Power supply

2. CP Board

3. FIO master board (refer to paragraph 5.4 for jumper settings)

4. Extension board

It is recommended, but not essential, that you use the standard board configuration, as this ensures that the default installation programming is applicable. This is described below:

1. The power supply must be located at the far right position of the board magazine.

2. The CP1 must occupy board position 1, 18 and 17, CP2 one of these positions

3. The FIO master board is located at board position 2.

4. Board position 3, 4 and 5 are left over for FIO boards.

5. The extension board(s) will occupy slots 6 through 16

4.11 Installation of additional boards

Whenever the system is to be installed for the first time or the system size is to be increased, new boards can be installed. Turn off the power and wait for the system to close down. This will take approximately 30 seconds. Remove the board fixing rails, and slide the new board(s) into position. Turn on the system and wait 2 – 3 minutes while the system starts. If the default board positions are used, then the default configuration data will be used by the system. If the default settings cannot be accepted, then refer to the AlphaConnect 48 Configuration Manual.

NOTE ! Only one FIO master can exist. When installing additional FIO boards, ensure that the master/slave jumper is set properly for slave operation, as only one board can be a master in an AlphaConnect 48 system.

4.12 Connecting the cable termination units

The boards of the board magazine must be connected to the cable termination unit using ribbon cables. 2 extension boards (16 extensions total) and 1 FIO board (2 trunk lines) can be



connected using one cable termination unit, or one cable termination unit (CTU) can be used to terminate all in/out pins of a full FIO board using the FIO-general cable.

4 types of cable exist

Equipment Description Order number

AEXT8 Cable conducting 8 extension lines (16 wires)

1000-120-0020

FIO_TRUNK Cable conducting 2 trunk lines (4 wires) 1000-120-0030

AEXT8_RINGING_RELAY Cable conducting 8 extension lines (16 wires) taking 4 of these to an Ring Relay Unit

1000-120-0050

FIO_GENEREL Cable taking all wires of an FIO board to the CTU (34 wires)

1000-120-0040



5. Technical manual

This chapter contains a detailed technical description of the AlphaConnect 48 system and its components.

5.1 Functional block diagram Figure 19 below shows a function block diagram for the AlphaConnect 48 power supply

24 to - 48 V converter

24 to +-5V converter

24 to - 80 V AC 50 Hz converter

24 V DC Main Input

24 V DC Backup Diode

switch

Micro processor Voltage supervision TT

Ambient temperature sensor Heat sink temperature sensor

-48 V DC out

+5V Digtal / +5 V Analog - 5 V Analog

80 V 50 Hz AC

On switch

Indicators

RESET to all boards

1 Hz synk signal

Figure 19. Power supply block diagram.

5.1.1 On switch and indicators The ON/OFF switch is used to switch the AlphaConnect 48 on and off and to reset the system in power up state. The use of the switch is shown below:

Operation Resulting in

Out The system performs the shut down sequence. The CP is allowed to close its running applications before the power is switched off

In The system start-up sequence is started. This sequence includes a hardware reset signal assertion to the backplane, giving a hardware reset of all boards in the AlphaConnect 48 system

Out for > 1 s. and < 3 s

When shutting off shortly and the back on again, a reset sequence is performed. The 5 VD power to the Cp and all boards are left on. The power supply will send the reset signal. This will result in a hardware reset of all boards of the AlphaConnect 48 system. In turn it will result in restarting of the CP application running at the CP board.



7 LED indicators are used for indicating the state of the power supply. Their use is as shown in the table below. (first row = topmost indicator)

Colour Showing

Green +24V DC power supply present

Red OFF - Normal condition FLASHING - A temperature is too high ON - Fatal voltage error or overheat shut down performed

Yellow OFF - Power supply is off FLASHING - Performing power up sequence or Performing shut down sequence or Non fatal power supply error ON - Power supply is on and all voltages are OK OCCULTING - Power supply is battery operated

Green ON +5V present

Green ON -5V present

Green ON -48V present

Green ON 80 V AC present

5.1.2 SMPS converters The power supply is based on switched mode power technology. 3 converters are present outputting 5 different voltages.

The electrical specifications of the power converters are stated below:

Voltage Max load Use

+ 5 V Digital 5 A Power supply for u-Processors and digital circuits

- 48 V 4 A Line feed for analogue extensions

+ 5V Analogue 0.75 A Operational amplifiers for voice processing

- 5V Analogue 0.75 A Operational amplifiers for voice processing

80 V AC 50 Hz 250 mA Ringing signal to analogue extensions

5.1.3 Powers supervision The micro processor keeps track of the output voltages of the power converters. If the safe operating range is exceeded an immediate power shut down is performed and the alarm relay will operate.

5.1.4 Temperature supervision The microprocessor measures the heat sink temperature and the ambient temperature. The tables below shows actions taken:

Ambient temperature Action

< 35 degrees Fan stopped

> 40 degrees Fan started

> 65 degrees Alarm relay operated



> 75 degrees System shut down

Or:

Heat sink temperature Action

< 70 degrees Fan stopped

> 80 degrees Fan started

> 110 degrees Alarm relay operated

> 120 degrees System shut down

5.1.5 CP watchdog The power supply holds a system watchdog function which can be enabled by the Mxconfig tool. When the Mxprocess application starts, then a message is passed to the power supply to enable the watchdog. After doing this, the Mxprocess must pass a watchdog kick message to the power supply every one minute. If the Mxprocess fails to pass the message, the power supply will make a full power down followed by a new power up. This mechanism covers failures as:

• FIO master not operating

• Operating system stopped

• Mxprocess stopped

5.2 CP1 The CP board contains a 586 based computer. This computer is the heart of the AlphaConnect 48 system. The specification of the computer is shown below:

• AMD DX5-133 processor

• 16 MByte RAM

• 2 GByte harddisk

• 10base-T RJ-45 network connector



5.2.1 Layout The figure 20 below shows the CP board layout

Backplane connector Reset

Display connector Keyboard / mouse Network

Com 1

Harddisk

Figure 20 The CP board layout.

5.2.2 Reset The reset switch is used for resetting the computer.

5.2.3 Display connector A VDU display can be connected to the CP board using this connector. Using a display and keyboard / mouse enables the user to make local installation set-up programming and to make local call data processing.

5.2.4 Keyboard / Mouse Standard AT keyboard and a serial PS2 mouse can be connected via this connector. A small cable supplied with the CP board must be used.

5.2.5 Network This is the primary access point to the CP board. All installation programming and call data handling can be executed via the network.

5.2.6 Com 1 Auxiliary communication connector. Not used at the moment

5.2.7 User guide For a detailed hardware user guide, refer to the Advantech Users’s manual for the PCM-4823/4823L. Use of the Win95 operating system is covered by readily available information. For a users guide to the AlphaConnect 48 software operating on the CP board, refer to the manuals: “AlphaConnect 48 Processor”, “AlphaConnect 48 Call Data Manager” and the AlphaConnect 48 Configuration Manual, covering the installation programming.

5.3 CP2 The CP2 is the central processor of a AlphaConnect 48 system. The CP2 board is an AMD Geode GX1 300 MHz based computer. The operating system is Windows XP



embedded. The CP2 stores its operating system and system software in a removable and write protected 256 Mbyte FLASH disk. The AlphaConnect 48 system programming can be undertaken via the network connection, or configuration data can be exchanged with the system using a USB memory stick. An optional serial port is available for communication to time setting devices, DECT telephone systems etc.

The specifications are:

• Processor AMD GX1 300 MHz

• Memory 128 Mbyte RAM

• Disk 256 Mbyte FLASH

• Network 10/100 Mbit Ethernet

• Serial port RS232

• Operating system Windows XP embedded

• Power consumption 5V 5W

5.3.1 Layout The figure 21 below shows the CP2 board layout

Backplane connectorReset

Rotating diskconnector

FLASH disk

Network

USB

COM

Activity indicators

Figure 21 The CP2 board layout.

5.3.2 Reset The reset switch is used for resetting the CP2 and thus resetting the whole AlphaConnect 48 system.

5.3.3 Network This is the primary access point to the CP2 board. The CP2 board can be accessed using the “Remote Desktop” utility of Windows XP or a WinVNC server is operating on the board to give access to a virtual display.

5.3.4 USB 2 USB connectors are available. These are primarily used for insertion of the USB disk on which the configuration file can be transported.



5.3.5 Com 1 The COM connector is an RS232 communication connector. The serial communication can be used with the CTI (Computer Telephony Integration) protocol which give external equipment access to make calls and receive information about events in the AlphaConnect 48 system. Or it can be used to pass time information to the AlphaConnect 48 system from equipment capable of sending time in a serial format.

5.3.6 Activity indicators 5 indicators are found. The bottommost green indicator shows disk activity. One pair of red and green indicators shows activity on the serial communication via the COM connector (COM1) and one pair of read and green indicators shows activity on the AlphaConnect 48 back-plane communication

5.4 2 line FIO board (Flexible In Out board) The FIO board (Flexible In Out board) is used at a gateway for the AlphaConnect 48 system to external communication devices as PSTN trunk lines, satellite terminals, radio paging systems, PA outputs etc. The FIO board contains a general selection of components that can be used for these purposes. The hardware is controlled from the CP board, and the exact type of interface the FIO board implements in an AlphaConnect 48 system, depends on the control mechanism activated in the CP software. Refer to the AlphaConnect 48 Configuration Manual which covers the installation programming.

Each FIO board holds 2 I/O channels, which can be given the below functions:

• 2 wire analogue trunk line (conforms to IEC 300 001)

• Audio In/Out

In parallel with implementing the input / output functions, a jumper setting can make an FIO board the PCM bus master of the AlphaConnect 48 system. One single master is necessary in order to make the AlphaConnect 48 system operate. The additional functions of the master are:

• PCCP communication

• ST-Bus master clock generator

• Dial tone generation

• PCM channel switching

• HDLC backplane communication master

• Power supply communication



5.4.1 Layout Figure 22 below shows the layout of the FIO board Block switch

Indicators

Backplane connector Lines connector

1 1 1

11 1

JP8 1

JP9 JP15

JP10

JP13 JP14

JP11 JP12

JP3, JP16, JP17 Master jump field

Processor

Figure 22. The 2 line FIO board layout.



5.4.2 Functional block diagram Figure 23 below shows a function block diagram of the FIO board

600 ohm trafo input

600 ohm trafo output

Optocoupl. input

Relay output

Audio I/O

Digital I/O

2 : 4 wire converter

CODEC

2 wire interface

Line feed detector

Ringing detector

TX gain adjust

RX gain adjust

4 wire

DTMF tranceiver

Metering pulse detect

Call progress detector

2 wire I/O

Serial interface (Only 1 pr. board)

RS232 RS485 RS422

2 x line circuits

PCM

Processor

Line control ST-Bus master clock

PCM switch

Clocks

PCM

PCM

Power com

To power

Block switch

Indicators

Figure 23. FIO board block diagram.



5.4.3 Switches and indicators Each channel of the FIO board has its own block switch. The use is shown in the table below:

Position Blocked state

Up Not blocked. Incoming and outgoing calls can be made

Down Blocked. New incoming and outgoing seizures are ignored.

Each channel has two associated LED indicators. A yellow LED, used for displaying the status of outgoing calls, and a red LED, used for displaying the status of incoming calls. The tables below indicates the meaning of used LED indications:

Yellow indicator Meaning

OFF Idle ready for seizure

Flash 1 Hz Wait for B answer outgoing

Flash 2 Hz Blocked

Flash 4 Hz Dialling outgoing in progress

ON Conversation outgoing

Red indicator Meaning


Flash 1 Hz Wait for B answer incoming

Flash 2 Hz Blocked

Flash 4 Hz Dialling incoming in progress

ON Conversation incoming

5.4.4 Jumper settings A number of jumpers are found on the FIO board. These must be set correctly for the required function to be implemented.

5.4.4.1 FIO channel jumper setting The two FIO channels have 3 jumpers to be set depending on whether a 2 wire audio interface or 4 wire audio interface is to be selected. The following figures shows how to set the jumpers for each FIO functionality:



5.4.4.1.1 2 wire analogue trunk interface

Figure 24 below shows how to set the FIO jumpers when a 2 wire analogue trunk interface is to be implemented:

1 1 1

11 1

1

JP15

JP10

JP13 JP14

JP11 JP12FIO channel 1

FIO channel 2

Figure 24 Jumper settings of the FIO board when operated as 2 wire trunk.

5.4.4.1.2 Audio In/Out interface

Figure 25 below shows how to set the FIO jumpers when a 4 wire analogue Audio In/Out is to be implemented:

1 1 1

11 1

1

JP15

JP10

JP13 JP14

JP11 JP12FIO channel 1

FIO channel 2

Figure 25 Jumper settings of the FIO board when operated as 2 wire trunk.

5.4.4.2 RS485 / RS422 jumper settings Jumpers JP8 and JP9 are used if a 100 ohm terminating resistor is to be connected between the A and B wire of the RS485 communication lines.

No RS485 based communication is implemented at the moment of writing this manual.

Do not set these jumpers.

5.4.4.3 Master / slave FIO selection The jumpers JP3, JP16 and JP17 must be set in order to make the FIO board either an PCM bus master or an FIO slave board.

On delivery of the AlphaConnect 48 system, one and only one FIO board must be found.

The figure 26 below shows jumper settings for the FIO master or slave



JP3 JP16 JP17

FIO Slave

JP3

JP16

JP17

FIO Master

JP18 JP19 JP18 JP19

Figure 26 Master / slave jumper settings of the FIO board.

When the FIO master function is selected, the PCCP communication must be enabled by setting the jumpers JP18 and JP19. This conducts the RS232 based PCCP communication to the backplane on pin C21 and C22 connecting to the CP board and the RS232 backplane connector.

5.4.5 Lines connector The front of the FIO board holds the FIO lines connector. A number of I/O’s are available. In order to conduct the used I/O’s to the cable termination module, the used cable must be “programmed” properly for the FIO function to be realised. This is quite easy, because flat cable type connectors are used.

The pin out of the connector is shown in the table below:

Pin Use Pin Use

33 Ground 34 Ground

31 RS232 RX 32 RS232 TX

29 RS485 in + 30 RS 485 in -

27 RS 485 out + 28 RS 485 out -

25 Current loop in + 26 Current loop in -

23 Current loop out + 24 Current loop out -

21 Ear 24V / 1k supply line 1 22 Ear 24V / 1k supply line 2

19 Ear + line 2 20 Ear - line 2

17 Ear + line 1 18 Ear - line 1

15 Mouth contact A line 2 16 Mouth contact B line 2

13 Mouth contact A line 1 14 Mouth contact B line 1

11 Audio out A line 2 12 Audio out B line 2

9 Audio out A line 1 10 Audio out B line 1

7 Audio in A line 2 8 Audio in B line 2

5 Audio in A line 1 6 Audio in B line 1

3 2 wire A line 2 4 2 wire B line 2

1 2 wire A line 1 2 2 wire B line 1



5.5 8 line analogue extension board The 8 line analogue extension boards implements 8 interfaces for normal telephone sets using -48 V line feed, 80 V AC ringing and DTMF / pulse dialling.

5.5.1 Layout Figure 27 below shows the layout of the 8 line analogue extension board.

Indicators

Backplane connector Lines connector

ProcessoSubscriber Line Interface Circuits

Line 1

Line 8

JP5

Figure 27 The 8 line analogue extension board layout.



Functional block diagram

The figure 28 below shows a function block diagram for the extension board

SLIC CODEC

DTMF receiver

2 wire subscriber line

8 x line circuits

Processor

Line control

PCM

DTMF receiver

8 : 2 MUX

12 / 16 kHz charge pulse generator 8 : 1 MUX

Indicators

Gong and alarm tone generator

Gong tables

Alarm tone tables

Figure 28 Block diagram of the 8 line analogue extension board.



5.5.2 Indicators Each subscriber line circuit has an associated yellow LED indicator, that is used to display the actions taken by the subscriber line.

The table below shows the meaning of LED indicator patterns

Yellow indicator Meaning


Flash 1 Hz Wait for B answer or Error tone sounding

Flash 2 Hz Blocked or Dialling going on

Flash 4 Hz Waiting for DTMF receiver to be free

Flash 4 Hz with 5s intervals

Extension ringing

ON Conversation going on

5.5.3 Lines connector The front of the extension board holds the lines connector.

The pin out of the connector is shown in the table below:

Pin Use Pin Use

15 Extension line 8 A 16 Extension line 8 B

13 Extension line 7 A 14 Extension line 7 A







5.5.4 Jumper JP5 must be set at position 1+2 when the extension board is to be used with bed side speaker panels or PA amplifier units.

5.5.5 Alarm generator The extension board holds an alarm tone generator capable of generating 7 different alarm tones. The alarm tones can be send as a broadcast paging call when distributing alarm.

NOTE there is only one alarm tone generator for each extension board.



The table below gives an overview of the alarm tone types. Refer to the AlphaConnect 48 Configuration Manual for details on setting up the alarm call.

The alarm type “Tone follow input” is used when external equipment has to control the tone pattern. The 2 wires, of the extension line used as alarm generator, is connected to the dry relay contacts of the master alarm system. When the relay is closed, the extension must be set up to call the alarm number representing the “Tone follow input” alarm call. The alarm call will be set up, and tone is send to the alarm group as long as the relay stays closed. When the relay is opened, the tone is stopped. If the relay stays open for more than the timeout period of 5 seconds, the alarm call be stopped.

Alarm type Description Technical details

Continuous tone A steady tone is sounded 700 Hz

Tone following input

Tone sounding when line is shorted, silence when line is open. When line is open for more than 5 seconds, the call is terminated

700 Hz

Alternating on/off Tone on / off Repeated forever.

700 Hz 500 ms tone 500 ms pause

Alternating frequencies

Continuous tone sounding, the frequency shifting between low and high tone frequency: Repeated forever

700 Hz sounding 500 ms 1200 Hz sounding 500 ms

Repeated rising frequency

Continuous tone sounding, with repeated rising frequency: Repeated forever.

Lowest frequency 600 Hz, Highest frequency 2400 Hz Period 1s

Rising then falling Continuous tone sounding, with frequency starting low, then rising to a high frequency then falling. Repeated forever.

Lowest frequency 600 Hz, Highest frequency 2400 Hz Period 3s

Repeated 7 short and one long

Tone signal consisting of 7 short tones with pause followed by one long and one long pause. Repeated forever.

500 Hz Short tone/pause 500 ms Long tone 3s Long pause 6s

ISDN30 board

The ISDN30 is used at a gateway for the AlphaConnect 48 system to ISDN networks. The ISDN30 board has one single ISDN G703 connection using RJ45 twisted pair wiring. It conforms to the ETSI standard ETS300102-1

• 30 channels

• Incoming as well as outgoing calls



5.5.6 Layout Figure 29 below shows the layout of the ISDN30 board

Backplane connector ISDN30 line

JP3, JP16, JP17 Master jump field

Processor

J4 Serial debug and board configuration

Status indicator field

Figure 29 The ISDN30 board layout.

5.5.7 RJ45 connector pin out The table below shows the pin out of the RJ45 connector.

Pin

1 Nu

2 Nu

3 Rxa

4 Txa

5 TXb

6 RXb

7 Nu

8 Nu

5.5.8 Status indicator field The 3 rightmost indicators of the indicator field indicates the following events:

0 0 1 - Normal operation

0 1 0 - Remote alarm received

0 1 1 - Loss of signal

1 0 0 - Alarm signal received

1 0 1 - RAI or continuous CRC check error

5.5.9 Serial debug and board configuration connector Configuration of the ISDN sub board can (unfortunately) not be undertaken from the MX CP.



The communication format is 9600, N,8,1. The serial RS232 connector has the below pin out:

Pin

7 TX

8 RX

9 Ground

10 Ground

The ISDN board is configured using an AT style command set. Refer to the “Netbricks ISDN Signalling module dual S2/T2 AT Commands description” for a full set of commands.

The below commands are important:

Command Description

# Enable the access to the AT command set

AT&W Write new settings to EEPROM

ATZ Restart board

AT#F0=4 Set board as ISDN protocol slave

AT#F0=8 Set board as ISDN protocol master

5.6 Ring relay unit The ring relay units are mounted in the cable termination area.

The ratings for the contacts are:

250 V AC 1A

The ring relay unit has a layout as seen figure 30.

+

A RL1 RL2 RL3 RL4

_ 1

B+ B- M+ M-

B

JP1 JP2 JP3 JP4

24V outputs Extensions

Pin1 Pin34

J1

J2

J3

Figure 30 Ringing relay unit

The terminals of section A are used for the relay contacts. The leftmost pair of contact correspond to relay unit 1 (RL1).

The terminals of section B are used for powering the device. M+ is the positive supply voltage and M- is the negative supply voltage. B+ is the positive battery backup



voltage and B- is the negative battery voltage. There is no connection between the battery and the unit unless the jumpers JP5 and JP6 are soldered onto the unit.

The extension lines are connected using J2 which is mounted on the backside of the unit. The pins of this connector are used in pairs. Pin 1 through pin 26 carries positive and negative 24V DC voltage from B section.

Pin 27 and 28 Extension line driving relay 1




The relays are activated by the ringing signal from the extension connected. The extensions are connected by a ribbon cable from the backside of an cable termination unit to the ringing relay unit. When a 1:1 cable is used conducting 8 wires, the rightmost extensions of a cable termination unit are connected to the relays. JP1 to JP4 is used to enable “hang over”. Setting the jumper will make the relay hang for 6 seconds. This is time enough to keep the relay activated between the ringing signals. JP1 corresponds to relay 1, JP2 to relay 2 etc. An indicator is found on the relay unit lit whenever the relay is activated.



6. Service

This chapter contains information useful when performing service on the AlphaConnect 48 system.

6.1 Preventive maintenance

It is advised to carry out regular service as indicated in paragraphs 6.1.1 - 6.1.4

6.1.1 The physical installation

Keep the inside of the AlphaConnect 48 clean and free from dust. Clean the fan at least once a year. Replace the fans every 3 years when operated at max 30 degrees Celsius. The higher average temperature of operation, the more often the fans must be replaced.

6.1.2 File system of the CP board disk

Restart the system at least once a year in order to make the scandisk feature of the start-up procedure check the file system of the disk.

6.1.3 Disk space checkouts

Check the disk space once a year in order to prevent disk overflow.

6.1.4 Call data maintenance

In order to prevent the AlphaConnect 48 call data base overflowing, make sure that old call data are always destroyed whenever they are no longer needed. Keeping unwanted call data for long periods will make the AlphaConnect 48 Call Data Manager operate slowly.

This procedure must be carried out at least once a year, more frequently if the system is handling a high traffic density.

6.2 List of recommended spare parts

Equipment Order number

Power supply 1000-110-0020

CP1 or CP2 1000-110-1010 1000-110-1011

FIO board 1000-110-1030

Extension board 1000-110-1040

6.3 Equipment required to perform service

When travelling for service be sure to carry the following:

• A set of recommended spare parts

• A portable PC with a network connection for connecting to the AlphaConnect 48

• The system configuration backup file

• 2 telephones with a cable to connect to the front of the extension boards

• A cable that connects trunk lines to extension lines

• Optionally a VDU, keyboard and mouse for connecting to the CP board



6.4 Trouble shooting, a step by step approach

This paragraph describes what to do if the system appears to have problems. Follow the instructions step by step:

6.4.1 Power supply check

Refer to paragraph Fout! Verwijzingsbron niet gevonden. for a detailed description of the power supply.

• Switch the system off and remove all boards except the power supply board.

• Make sure that the topmost green LED indicator of the power supply is lit, indicating that 24V DC is present.

• Switch on the power supply. The yellow LED indicator must start to flash, indicating that the power supply is performing the start-up sequence.

• After a few seconds, check that the lowest 4 green LED indicators are lighting, and that the yellow LED indicator is be steadily lit.

• If the red LED indicator is lit, there is a fatal error on the power supply. Check the +24V DC power using a volt-meter.

• If the red indicator is still lit, then replace the power supply and return the faulty board for service.

• If the yellow LED indicator keeps flashing and/or one of the green LED indicators is not lit, then a non fatal power failure exists, and the system might be partially operated. Return the faulty power supply for service.

6.4.2 CP board check

Refer to paragraph 5.2 for detailed information on the CP board.

When the power supply is operating, it is time to check the CP board:

Switch off the power supply.

• Return the CP board to its position in the board magazine.

• Turn on the power supply and check that the power supply starts as per paragraph 6.4.1 above. If not , replace the CP board.

• Check that the CP board beeps after which the hard disk should sound like any other hard disk with a uniform rotating sound. If no beep is heard, or the hard disk does not sound well, replace the CP board.

• After a short while the yellow LED disk indicator at the bottom of the CP board shall start flashing and the hard disk shall make sounds like a hard disk does when starting the operating system.

• If you are in doubt about whether the CP starts the operating system properly, you should connect a VDU, keyboard and mouse to the bottom of the CP board.

6.4.3 FIO master board check

Refer to paragraph 5.4 for detailed description of the FIO board.

When the power supply and the CP boards seems to be operating properly, the time has come to check that the FIO master board operates.

• Check with 5.4 that all jumpers of the board are set for master operation.

• Insert the board in its board position of the board magazine.

• Turn on the power supply and check that the power supply starts as per paragraph 6.4.1. If not , replace the faulty FIO board.

• Wait 2 – 3 minutes for the system to start up



• When the system has started, two LED indicators found on the FIO master board near by the U46 must be flashing. It is a little difficult to see these indicators, as they are located at the approximately centre of the FIO board. These indicators MUST flash, indicating that the communication between the FIO master and the CP board is operating. If the red LED indicator flashes, it indicates that the FIO board is transmitting data to the CP board, and if the green LED indicator flashes, it indicates that the FIO board receives data from the CP board.

• If one both led indicators do not flash, then check that JP18 and JP19 of the FIO board is set, and check that the cable at J2 on the CP board is properly mounted.

• When these checks fails, try to replace either the FIO board, the CP board or both.

6.4.4 Extension board and FIO board check

Refer to paragraph 5.4 and 5.5 for detailed descriptions of these boards.

When the power, CP and FIO master boards have been checked, it is time to check the rest of the boards: DO NOT INSERT ANY BOARDS WITH THE EQUIPMENT SWITCHED ON

• Insert one board at a time and turn on the system. Be patient as a start-up procedure takes 2 – 3 minutes and the close down procedure takes 30 – 60 seconds.

• Check that the power supply makes a proper start, and all 4 green LED indicators and the yellow LED indicator of the power supply is lighting. If any board corrupts the start-up procedure, then replace that board.

6.4.5 Checking that the AlphaConnect 48 is operating

When all boards are checked, then it is time to check the full system and that each extension / trunk line is working.

• Turn on the system

• Make sure that: 1 - The power supply starts properly 2 - The CP board sounds well 3 - The PCCP communication is running indicated by the red + green indicator of the FIO master board.

6.4.5.1 Checking extension lines:

• To check the extension lines, connect a normal analogue telephone to each line of the extension board and check that the dial tone is heard when the handset is lifted, and that the yellow LED indicator corresponding to that line is flashing

• Make a call using the telephone set (s)

• If any of the above tests fail, check to be sure that the extension is properly configured.

6.4.5.2 Checking trunk lines.

• Connect the trunk line either to the communication equipment or to a local extension line using a service cable.

• Try to make an incoming call using the trunk line

• Try to make an outgoing line using the trunk line

• If any of the above tests fail, check to be sure that the trunk is properly configured.



6.4.5.3 If nothing seems to work

If everything seems to start well, but the AlphaConnect 48 system is not working correctly, then:

• Be sure that only one of the FIO boards are configured as master

• Insert boards one by one in order to try to locate a board which is corrupting the backplane communication.

alphaconnect technical manual

Documents

technical manual page

electrical interfaces

isdn30 interface

satellite calls

alarm distribution

power supply arrangement

alarm relay connection

system components