System information

BSR 64000 Configuration and Management Guide
14-6
Table 14-3 describes the network clocking commands that are available on the BSR
and the POS module:
Setting the Primary BITS Network Clocking Source
Follow these steps to set the primary network clocking source:
1. Use the network-clock-select 1 bits command in Global Configuration mode to
identify the primary network clock and define the network clocking port on the
SRM I/O module from which the T1 or E1 BITS signal is derived, as shown in
the following example:
BSR(config)#network-clock-select 1 bits [t1 {esf-b8zs | sf-d4 | slc96 |
t1dm} | e1 {pcm31-crc | pcm31-hdb3 | pcm31-nocrc}] [a | b]
where:
1 is the priority assigned to the primary network clock.
Table 14-3 Network Clocking Commands
Command Description Default Value
network-clock-select
[1 | 2] bits e1
Enables the E1 Building
Integrated Timing Supply
(BITS) network clocking to
be derived from the central
office (CO) BITS source.
none 1 sets the priority of the
clocking source to
primary or 2 sets the
priority of the clocking
source to secondary.
Input a or b port on
SRM I/O module.
network-clock-select
[1 | 2] bits t1
Enables the T1 Building
Integrated Timing Supply
(BITS) network clocking to
be derived from the central
office (CO) BITS source.
none 1 sets the priority of the
clocking source to
primary or 2 sets the
priority of the clocking
source to secondary.
Input a or b port on
SRM I/O module.
network-clock-select
pos
Enables the network
clocking to be derived from
a specific POS module
and interface.
none slot and interface
number
pos internal-clock Set the clock source on
the POS interface
internal internal or recovered