4-17
Cisco VISM Installation and Configuration Guide
Release 3.0, Part Number OL-2521-01 Rev. D0, June 2004
Chapter4 Configuring VISM Features
Configuring VISM Features
Note You must include all argument values when using the cnfln command; however, the line-num
and clock-source are the only relevant arguments for configuring the clocking source on your
VISM cards.
You have completed configuring the clocking source for your PXM and VISM cards. Proceed to the
“Configuring DS0 Channels” section on page 4-17.
Configuring the PXM1E or PXM45 Card as Clocking Source
Use the cnfncdpclksrc command to configure the PXM1E or PXM45 card as the pr im ar y clock source.
Use the following commands to display and verify your configuration:
•dspncdpclkinfo
•dspncdpclksrc
Refer to the “Related Documentation” section on pagexiv for the appropriate document to use the
commands in this section.
Configuring DS0 Channels
You are now ready to configure the 24 (T1) or 31 (E1) DS0 channels on the VISM card’s T1 or E1 lines.
Table 4 -3 describes the VISM/VISM-PR DS0 density when the cards are used in combination with the
supported codecs.
You must complete the following tasks to configure a DS0 channel:
1. Add and configure DS1 line and DS0 endpoints.
2. Configure CCS or CAS signaling.
Table4-3 VISM/VISM-PR DS0 Density with Codec Support
Codec
VISM VISM-PR
T1 E1 T1 E1
G.711 192 248 192 248
G.723 — — 144 144
G.726 145 145 192 248
G.729 145 145 192 248