............................................................................................................................................................................................................................................................

Figure 4-1 Optical test set arrangement

Set the test set to the required rate for the packs under test. Refer to

Transmission

Table 4-4 Transmission rate

Test signal

mapping

Pattern

Once the test set is in place, it will display pattern and AIS alarms. This is due to the fact

that we have not established a cross-connection. Enter a cross-connection either through

the GUI using the cross-connect wizard. Enter the command according to the optical pack

and function slot under test.

Check the transmission at the test set. It should show no alarms. If alarms are present,

check the test set provisioning and the cross-connection to ensure they correspond to the

4 - 6 0

Optical

Test

Set

OC3

OC12

OC48

rate.

OC-3

(LNW36,LNW37,

LNW45,LNW55)

STS-3C

2^23 -1 PRBS

Standby

1x2

(FN-2)

splitter

Active

(FN-1)

OC-48 (LNW31,LNW55,

OC-12

LNW62,LNW425, LNW427,

(LNW46,LNW49,

LNW447, LNW449, LNW453,

LNW55)

LNW455, LNW459)

STS-3C/12C

STS-3C/12C/48C

2^23 -1 PRBS

Additional optical tests (optional)

Table 4-4,

365-372-304R7.1

Issue 2 March 2008

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