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Cisco VISM Installation and Configuration Guide
Release 3.0, Part Number OL-2521-01 Rev. D0, June 2004
Chapter5 CLI Commands
cnfclksrc
cnfclksrc
To configure the PXM1, PXM1E, PXM45, VISM, or VISM-PR card clock source, use the cnfclksrc
command in the VoIP switching/trunking, switched AAL2 PVC, and AAL2 trunking operating modes.
cnfclksrc slot-num.port-num clk-type
Syntax Description
Command Modes VoIP switching/trunking, switched AAL2 PVC, and AAL2 trunking
Usage Guidelines Specify the cnfclksrc command argument values according to the following rules:
•To configure any line except for line 1 of a VISM card, you must use a VISM-PR card in
combination with a PXM1E or PXM45 in your MGX 8000 Series switch chassis.
•If the clock source is the external BITS clock (a T1 or E1 por t on the PXM ba ck c ar d), sp ec ify the
configuration as:
cnfclksrc 7.35 p
Note Type 7 for the slot number regardless of the PXM card’s location in the chassis. Type 35
for the port number—the BITS port is always port 35.
•If the clock source is an external signal on one of the PXM OC3 ports, specify the configuration as:
cnfclksrc 7.n p
Note Type 7 for the slot number regardless of the PXM card’s location in the chassis. The n
port parameter value is the OC3 port number in the range 1 to 4.
slot-num.port-num The chassis PXM card slot number and port number for which you want to
configure the clocking source.
The slot-num can be one of the following values:
•7
•8
The port-num can be in the range from 1 to n, as appropriate for the physic al
installation.
Note Ensure that you type the period with no spaces on either side, between
the slot-num argument value and the port-num argument value.
clk-type Clock type. It can be one of the following values:
•P = Primary
•S = Secondary
•N = Null. No external clocking source; use the PXM card’s internal
crystal.