microwave installation technology nec

7/28/2019 Microwave Installation Technology Nec

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Optical engineering Dep.


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System Components

Installation and key point

Debugging

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Diameter (m): 0.30.61.21.5 1.8 2.02.53.23.7

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Feed source

Parabolic refle

Mount bracket

String


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Page 5

Flexibl

e twistODU

Mountbracket


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Page 6

IDU

ODU

Antenna(0.3m)

PASOLINK


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1. IF connector (to ODU)

2. 2Mbps interface (CH 9 to CH 16): impedance selector switch (75 or 120 ohms)

3. LAN Interface for main traffic: Port 1 and Port 2 (Optional)

4. WS/LAN: optional port for Wayside In/Out or 10BaseT

5. NMS LAN: for PNMS with LAN interface

6. Engineers Orderwire (EOW): receptacle for EOW headset

7. CALL: call buzzer for calling the opposite site of the transmission path

8. RESET: CPU reset switch for IDU

1

2 3 4 5 6 7

8


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9. LED: PWR : that the power switch is on (Green)

MAINT: for the purpose of maintenance (Yellow)

ODU : that the ODU alarms occur (Red)

IDU : that the IDU alarms occur (Red)

10. FG : connecting Frame Ground terminal

11. ESD: Connecting terminal for Electro Static Discharge

12. 2Mbps interface (CH 1 to CH 8) ): impedance selector switch (75 or 120 ohms)

13. ALM/AUX ALM: connector for parallel alarms (relay contact)

connector for Data Input / Data Output

10 11 12 139


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14. OW / DSC / ASC

(1) Order wire

(2) Digital and Analog (VF) service channel

15. NMS / RA: for PNMS or remote access Local Craft Terminal (None PM Card)

16. LA Port: connector to PC for local access Local Craft Terminal or PNMT

17. Fuse: for primary DC line (be inserted in each plus and minus line)

14

18. 20SW : power switch

19. DC IN: connector for DC power in.

15 16 17 18 19


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Rear Side Front Side

IF connector to IDU RF interface to Antenna( PBR220)RX LEV MON


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Page 14


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Page 15


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Page 16

PASOLINK+ IDU

1+1 System


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Page 17

INTFCWS(option)

LEDsMAINT ODU IDU PWR

DC IN

PNMT

NE1 NE2 LAN V11(PNMS)

ASC/DSC ALM Out

House

keeping

EXT

OWLCT

FUSE PSFUSE

CPU

Reset

PWR

SW

FUSE

R

SW

RS422(Sync/Async)

or RS485

10Base-TRS422

(Async)

RS232C

IF IN/OUT EOW

OW: 1CHDSC: 2CH(64k/V11)

ASC: 2CH(SDH) or 1CH(PDH)

IDU-IDU

IDU-ODU

ODU-ODU

WS(option)

E1/T1/10Base

Except STM-1/128Q

7 or 11 Output

6 Input

4 or O Output

150(E/OPT)Nx2MB(75/120ohm)

PASOLINK+ IDU Interface


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12 3 4 5

6 7 8 9

10 11 12 13 1415 16 17

18192021222324

PASOLINK+ IDU Interface

1. IF connector (to ODU)

2. PNMT : Connect to PC for NMS

3. LCT : Connect to PC for Local Craft Terminal

4. EOW1 : Connect between IDUs for order wire

5. EOW2 : Connect between IDUs for order wire

6. NE1 : Connect between IDUs for NMS network7. NE2 : Connect between IDUs for NMS network

8. LAN : Connect between IDUs for NMS network with LAN network

9. V11 : Connect between IDUs for NMS network with V.11 network

10. SC IN/OUT : Connector for Service Channel

11. ALM connector for parallel alarms (relay contact : Form-C)

12. ALM/AUX : Connector for Data Input/Data Output for house keeping


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13. R SW : Selector switch for switching b.w. previous firmware

and new download firmware

14. EOW : Receptacle for headset

15. CALL : Call buzzer for calling opposite site

16. RESET : CPU reset switch for IDU

17. LEDs :

MAINT : IDU maintenance condition

ODU : ODU alarms

IDU : IDU alarms

PWR : Power switch on

18. DC IN : Connector for DC power in

19. SW : Power switch

20. Fuse : Fuses for primary DC line

21. Interface Card : STM-1 optical/STM-1 electrical, Nx2MB(G.703)22. WS IN/OUT or 10Base-T interface card :

Select card as an option, wayside(2.048Mbps), 10 Base-T or blanc panel

23. ESD : Connecting terminal for Electro Static Discharge

24. FG : Frame Ground Terminal


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Water-proof

There must be a gasket at

the meeting place of the ODU and

the antenna, or the meeting place

of the ODU and the flexible twist.

Smear the water-proof glue at the

meeting place then wrap the

water-proof tape and the then

adhesive plaster at the outmost.

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Gasket cant

be lost!

Be lack of

water-proof and

plaster!


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Page 21

The waveguide ports must beidentical!

Dont be cross!

The polarization orientation must be

identical in one hop!


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Page 22

Cable ought to superfluous.

Water-proof

Ground line must be

connected!


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Page 23

Cables ground line must be connected!


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Page 24

There must betwo nuts fixed!

This is

unqualified!


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Page 25

High site and Low site are forbidden in one station!


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Two terminals ought to be open!

The adjusting line will be connected ODUs MON

port with multimeter.

Adjust multimeter to DVC 10 volt position.

The multimeters display is bigger, the Rx power

(Rx voltage) is better!

During adjusting, one terminal is carrying on,

another terminal must be quiet!

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Rx LEV

MON

Special adjusting line


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During the adjusting course,

two cases are wrong:

one terminals side-lobe

meet another terminals

side-lobe; one terminals

side-lobe meet another

terminals main-lobe!

The only right case is that:

one terminals main-lobe

meet another terminalsmain-lobe!

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wrong wrong right


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P 28

Rx power

Antenna moving orientation

The multimeter displaying

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