LambdaDriver 400 & 800
ML46430, Rev. 07
October 2004
LLB Test
Purpose
The LLB test is used to determine whether the local GM2’s electro-optical circuitry is OK.
Data Path
The data path (round-trip) in an LLB test is shown schematically in
GM2 is not used in the LLB test.)
Figure 85: Data Path in LLB Test using a GM2
Preparation
1. Insert the GM2 in the
local
LDx00.
[arg #1] =
1
(for GM2 access port 1) or
2
(for GM2 access port 2)
Interconnect the local and remote LDx00s, Tester (capable of generating frames), and
Management station as shown
2. At the management station, invoke the CLI command:
set-transponder-lb [arg #0] [arg #1] opt.[arg #2] opt.[arg
#3]
where,
[arg #0] =
Slot number of the local GM2
opt.[arg #2] = llb
(LLB mode)
opt.[arg #3] = l
(enable loopback mode)
Interconnection
Procedure
Send data from the tester and verify that the same data is received by it.
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