Nortel SONET AccessNode Manual page 71

Procedure 3-2 (continued)
Performing optical interface receiver sensitivity tests
Figure 3-1
OC-12 receiver sensitivity test setups
OUT
VOA/
mVOA
IN
IN
OUT
OUT
OC-3
A
tributary optical interface
(in primary slots)
ABM or TBM shelf
OC-12
SONET
test set
IN
AccessNode Site Testing Procedures 323-3001-221 Issue 2.0
Tributary and optical tests for VTBM rings 3-9
Variable optical
Single mode
test cables
Out
In
OC-12
DS3
test cables
—continued—
Optical power
meter
attenuator
In
Out
FW-15431
DS1 transmission
test set
DS1 test cables
(daisy-chain 14 DS1s)
DS3 transmission
test set
(receiver)
DS3 transmission
test set
(transmitter)
PC-15431