DWDM ZTE (ZXMP m920) signal flow v2 1 24 12 2014

Compare the slot information on the M920 with Board Link Chart; 6.. Connect the patch cords following the board link chart; Notice: 1.. DRA E2000/APC • Avoid damaging fiber pigtail con

Signal Flow and Fiber Connection

 Signal Flow

Signal Flow - A Simple Example

Schematic Diagram of OTM Equipment

Signal Flow – ROADM Example(GAZ020)

Content

Installation Steps

1 Install the equipment;

2 Connect the power cable;

3 Unplugged the boards except FANs;

4 After the FANs are running normally, plug in all of the boards;

5 Compare the slot information on the M920 with Board Link

Chart;

6 Connect the patch cords following the board link chart;

Notice:

1 Laser of EOBAH2424 and DRA board must be shut down

before connecting the patch cords.

2 The attenuation between DCM1 and DCM2 on EONAD

board should be 11dBm

 SNP Configuration

Configuration of NE IP Address

The SNP in the engineering is configured with IP address when it leaves the factory You can combine the VLAN to query the IP address configured to the SNP

To query the initial IP address, proceed as follows:

1.Combine the VLAN: press down the TST key on the EIC board (0-1-4) for more than

5 seconds If the NOM indicator on the EIC board flashes more frequently,

it indicates that VLAN combination succeeds

2.IP address of the network port of the PC is configured to 192.168.1.200, and subnet mask is configured to 255.255.255.0

3.In the DOS window, make sure that you can ping 192.168.1.4

4.Then run the telnet 192.168.1.4 9023 command The login name and password are admin and adminby

5.Behind the ZTE+> prompt, type enterksh, and then press enter

6.Behind the KSH> prompt, type vwc, and then press enter

the BOARD IP ADDRESS and BOARD SUBNET MASK

marked in the red block indicate the SNP’s IP address and subnet mask.

Create an NE on the EMS, set the NE IP address to the value just queried.

When the EMS can manage the NE, modify its IP address through the EMS

login snp, after login scscb: 192.168.1.12 9023/ zte/ pass zte/

type: cd 1 " login soscb"

ipcfg " check ip near site"

zdps " check ip far site"

Configuration of NE IP Address

DRA (E2000/APC)

• Avoid damaging fiber pigtail connectors while plugging/unplugging the board and

make sure that the optical power of fiber is lower than 10 dBm

• Always keep the optical connectors clean Install the dust caps on the unused optical

connectors in real-time

• In the application of the DRA board, connectors used in optical line should be as few

as possible

• If the line fiber route changes or the optical fiber changes, fiber pigtails connected to

the DRA board should be recleaned

• Turn off the board pump laser in EMS before pulling out fiber from the IN interface on

the board.

• Before inserting fiber into IN interface, perform the following operations:

1 Connect the fiber correctly

2 Configure board gain as the lowest value, and then check the reflectance

3 If the reflectance is not more than -30 dB, adjust the gain to the normal value

• The reflectance should be not more than -30 dB (the reflectance alarm threshold is

-15 dB) Clean fiber surfaces before you plug/unplug fiber pigtails or replace the DRA

board

EOBAH (E2000/APC)

• Turn off the board pump laser in EMS before pulling out fiber from the IN interface on

the board.

• If the line fiber route changes or the optical fiber changes, fiber pigtails connected to

the DRA board should be recleaned

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