Broadmore 1750 - Release 4.6 7-41
Configuration
OC-12c/STM-4c BITS/Timing Redundancy
2. Follow the sequence below to set the clock mode configuratio n on the port of
interest.
3. Follow the sequence below to set the OC12 transmit timing to either recovered
or local/BITS. Recovered clock de rives timing from the SONET stream.
Local/BITS derives timing from the onboard oscillator. Repeat this step for
both OC12s.
Follow the sequence below to enable an alarm for loss of BITS clock. Do this for both
OC-12c/STM-4cs.
Select System Management ↵
Select Configure ↵
Select Slot with DS3 ↵
Select Port of interest ↵
Choose the BITS option to allow the DS3 port
to derive clock from either BITS or the cell bus
Select Operational Configuration ↵
Select Clock Mode ↵
Select System Management ↵
Select Configuration ↵
Select Slot with OC12 ↵
Select Transit Timing ↵
Choose Recovered or Local/BITS ↵
Select System Management ↵
Select Configuration ↵
Select Slot with OC12 ↵
Select BITS Clock Alarm Loss ↵
Choose Enable or Disable ↵