R0106-HP MSR Router Series Interface Command Reference(V7)

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Parameters
line-number: Specifies a T1 line number in the range of 1 to 28.
detect: Specifies periodical alarm signal detection.
generate: Sends a specific type of alarm signals. These alarm signals are used for line status test.
• ais: Alarm indication signal.
• rai: Remote alarm indication signal.
Usage guidelines
At startup, periodical alarm signal detection is enabled on all T1 lines on the CT3 interface. When a T1
line detects LOS, LOF, or AIS signals, it sends RAI signals to its peer. You can view the real-time alarm
state by using the display controller t3 command.
The supported alarm signals (LOS, LOF, AIS, RAI, FEBE, and idle) are ANSI T1.403 compliant.
Only one type of alarm signal can be sent on a T1 line at a time. To send another type of signal, you must
first remove the previous setting by using the undo t1 alarm command. If a RAI signal is present because
an LOS, LOF, or AIS alarm is detected, you must first use the undo t1 alarm detect command to remove
the signal.
Examples
# Enable periodical alarm signal detection on T1 line 1 on T3 2/4/0.
<Sysname> system-view
[Sysname] controller t3 2/4/0
[Sysname-T3 2/4/0] t1 1 alarm detect
# Enable T1 line 1 on T3 2/4/0 to send AIS alarm signals.
<Sysname> system-view
[Sysname] controller t3 2/4/0
[Sysname-T3 2/4/0] t1 1 alarm generate ais
t1 bert
Use t1 bert to start a BERT test on a T1 line on a CT3 interface.
Use undo t1 bert to stop the BERT test running on a T1 line on a CT3 interface.
Syntax
t1 line-number bert pattern { 2^11 | 2^15 | 2^20 | 2^23 | qrss } time number [ unframed ]
undo t1 line-number bert
Default
No BERT test is performed.
Views
CT3 interface view
Predefined user roles
network-admin
Parameters
line-number: Specifies a T1 line number in the range of 1 to 28.