Zhone Technologies Z-PLEX-10-24-DOC-SC ユーザーズマニュアル
Zhone Technologies / 5-3
Diagnostics
BER testing
5.2
BER testing
The bit error rate (BER) test sends a data pattern and measures the bit error rate on the selected
interface. The Z-Plex supports BER tests on entire T1 lines or on individual time slots. The
BER test supports the following BER test patterns:
interface. The Z-Plex supports BER tests on entire T1 lines or on individual time slots. The
BER test supports the following BER test patterns:
•
Quasi-random signal source (QRSS)
•
ALT (10101010)
•
2047
During a BER test, all connections between either the data ports or the FXS/FXO ports and
the T1 interface are broken and a test pattern is transmitted onto the T1 interface. During the
test, the WAN LED blinks green.
the T1 interface are broken and a test pattern is transmitted onto the T1 interface. During the
test, the WAN LED blinks green.
5.2.1
Activating a BER test for an entire T1 line
To configure a BER test on an entire T1 line, enter the following command:
user> SET T1CFG:BERT:x:(QRSS/ALT/2047)
where x is the number of the T1 interface to loopback. To end the BER test, enter the following
command:
command:
user> SET T1CFG:BERT:x:OFF
While the BER test is active, you can insert random BIT errors into the test data stream using
the following command:
the following command:
user> SET T1BE:ERRINS:x:BIT
5.2.2
Activating a BER test for individual time slots
To configure a BER test on single T1 timeslot:
1. Specify the BER test pattern for the test:
user> SET T1CFG:BERT:x:(QRSS/ALT/2047)
where x is the number of the T1 interface to apply the pattern to.
2. Activate the BER test:
user> SET T1CFG:TSBERTON:x:(1-24)
3. To de-activate the BER test: