System information

BSR 64000 Configuration and Management Guide
14-8
BSR(config)#network-clock-select 2 bits [t1 {esf-b8zs | sf-d4 | slc96 |
t1dm} | e1 {pcm31-crc | pcm31-hdb3 | pcm31-nocrc}] [a | b]
where:
2 is the priority assigned to the secondary network clock.
t1 specifies a T1 BITS signal.
esf-b8zs is ESF framing with B8ZS line coding.
sf-d4 is SF-D4 framing with AMI line coding.
slc96 is SLC96 framing with AMI line coding.
t1dm is T1DM framing with AMI line coding
e1 specifies an E1 BITS signal.
pcm31-crc is PCM-31 framing with AMI line coding and CRC Multiframe
support.
pcm31-hdb3 is PCM-31 framing with HDB3 line coding and CRC
Multiframe support.
pcm31-nocrc is PCM-31 framing with AMI line coding and no CRC
Multiframe support.
a specifies the Input A port on the SRM I/O module.
b specifies the Input B port on the SRM I/O module.
2. To verify the secondary network clock source information that you have
configured, use the show network-clocks command in Global Configuration
mode, as shown in the following example:
BSR(config)#show network-clocks
Deriving the Network Clocking Source from a POS Interface
Follow these steps to derive network clocking from a POS interface:
1. Issue the network-clock-select pos command to enable the network timing to be
derived from the clocking recovered from a specified POS module interface, in
Global Configuration mode as shown in the following example:
BSR(config)#network-clock-select [1 | 2] pos <slot>/<interface>