Nortel SONET AccessNode Manual page 76

3-14 Tributary and optical tests for VTBM rings
Procedure 3-2 (continued)
Performing optical interface receiver sensitivity tests
Step
7
Connecting the test set
8
Testing using a DS1 transmission test set
9
Testing using a DS3 transmission test set
10
AccessNode Vol 3B 323-3001-221 Issue 2.0
Action
If you have a second VOA or mVOA unit, repeat steps 4 to 6 for the optical
circuit pack G2, except set the optical level at − 20.0 dBm before connecting to
the receive connector.
Set up your test set according to the chosen equipment:
If you are testing with
DS1 transmission test set
DS3 transmission test set
SONET test set
If you are testing with a DS1 transmission test set, connect the test set to the
system shelf as follows:
a. Connect a test cord from the output of the DS1 test set to the DS1 input
card for the test mapper.
b. Connect a test cord from the DS1 output card for the test mapper to the
input of the DS1 test set.
c. Daisy chain all 14 DS1 facilities on the test mapper.
d. Settings on the DS1 test set should be as indicated in Setting Up Your
System: VTBM, 323-3001-230, in Commissioning Procedures , Volume
3A.
e. Provision DS1s for testing purposes. See Setting Up Your System:
VTBM, 323-3001-230, in Commissioning Procedures , Volume 3A.
Go to step 12.
If you are testing with DS3 transmission test equipment, connect the test sets
to the system shelf as follows:
a. Connect a test cord from the transmitter test set to the DS3 input jack for
the test mapper.
b. Connect a test cord from the DS3 output jack for the test mapper to the
receiver test set.
c. Settings on the DS3 test set should be as indicated in Setting Up Your
System: VTBM, 323-3001-230, in Commissioning Procedures , Volume
3A.
d. Provision a DS3 for testing purposes. See Setting Up Your System:
VTBM, 323-3001-230, in Commissioning Procedures , Volume 3A.
Go to step 12.
—continued—
Then go to
step 9
step 10
step 11