Changing The Bits Clock Source - Lucent Technologies Stinger MRT 19 Getting Started Manual

Configuring Administrative Access, System Timing, and Startup Settings
Configuring system clocking (optional)
LOG alert, Shelf 1, Controller-1, Time: 17:02:01--
BITS clock source has been lost - 8kHz clock is free running
If no other clock source is eligible, the system then displays the following message:
LOG notice, Shelf 1, Controller-1, Time: 17:02:01
Master clock source changed to local oscillator
When the Stinger unit recovers the BITS signal, it displays the following messages:
LOG alert, Shelf 1, Controller-1, Time: 17:02:03--
BITS clock source has been recovered - 8kHz clock is locked
LOG notice, Shelf 1, Controller-1, Time: 17:02:03--
Master clock source changed to T1 framer
If the Stinger MRT unit detects a T1 signal in the BITS input, it prioritizes the clock
source list as follows:
If the system-8K-clock parameter of the system profile is set to bits, its priority is
set to the highest (1) and the T1 framer is selected regardless of other available
clock sources and priorities.
If the system-8K-clock parameter of the system profile is set to a value other than
bits, its priority is set as the lowest (3) and the T1 framer is selected as a clock
source only if no other slot clock sources are available.

Changing the BITS clock source

The following examples show how to change system-8K-clock parameter setting
from bits to lim-or-trunk-module and use the slot-clock-source command to view
the changes in clock source priority.
admin> set system-8k-clock = bits
admin> write
LOG notice, Shelf 1, Controller-1, Time: 17:55:34--
Master clock source changed to T1 framer
SYSTEM written
admin> slot-clock-source
Master line: T1 framer
Source List:
Source: line 1 Available*
Source: line 2 Available*
Source: T1 framer Available*
admin> set system-8k-clock = lim-or-trunk-module
admin> write
LOG notice, Shelf 1, Controller-1, Time: 17:56:05--
Master clock source changed to slot-1/8 line 2
SYSTEM written
admin> slot-clock-source
Master line: 2
source List:
6-20
priority: 2
priority: 1
priority: 1
Stinger® MRT Getting Started Guide