Anrtisu Site Master S331D - Out-Of-Service Testing

Out-Of-Service Testing
Out-of-service measurements are performed when the E1 circuit is not in service or inac
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tive. Typically these tests are done during initial installation, during circuit acceptance by
the wireless service provider or when the performance of the in service measurements indi
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cates extensive errors. These measurements provide detailed information about the E1 cir
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cuit.
Out-of-service testing is performed using end-to-end testing, which requires a technician
and a unit at each end of the circuit.
The following measurements are used to check the E1 performance during out of service
testing:
q
Vpp
q
Carrier
q
CRC Errors
q
Frame Sync
q
Pattern Sync
q
E-Bits
q
Insert Errors/Alarms
q
Self Loop Code
Required Equipment
q
S33xD Site Master with Option 50
q
Bantam Cables, Anritsu Part Number 806-16 (2)
Procedure
Step 1.
Press the MODE key, select
E1 Tester, and press ENTER.
Step 2. Select the
BERT soft key.
Step 3. Press the
Framing Mode soft key and choose Auto, PCM30, PCM30CRC, PCM31
or PCM31CRC framing type. Press Back to return to the previous menu.
Step 4. Press the
Receive Input soft key and select Terminate. Press Back to return to
the previous menu.
Step 5. Press the Pattern soft key and select Auto, or use the Up/Down arrow key to se
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lect the appropriate pattern for the test.
NOTE: The Site Master will attempt auto-framing in two situations only:
1. When the unit is initially set for auto-detect, and
2. When a new measurement is started and loss of frame or pattern sync is de
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tected. The Site Master will not attempt to auto detect in mid-measurement.
Step 6. Press the
Line Coding soft key and select HDB3 or AMI coding. Press Back to re
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turn to the previous menu.
10-8
Chapter 10 E1 Measurements