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Installing Voice Cards
Step 10
Note
Reference for the description of cellbus bandwidth allocation and the Cisco WAN Switching
SuperUser Command Reference for a description of cnfbusbw. Any user can view the current
cellbus bandwidth allocation by using the dspbusbw command.
Step 11
Step 12
Installing Voice Cards
This section describes how to install the voice cards. See the section titled "IGX Configuration
Summary on page 49" for a summary of the commands that apply to circuit lines and voice
connections. The two voice card sets are the channelized voice module (CVM) and the universal
voice module (UVM). These cards can also carry channelized data. The serial data card sets are the
HDM and LDM. This section also describes the considerations for using the TDM Transport feature
on the CVM.
Connecting a CVM to a T1 or J1 Line
Voice or data connections on a T1 line use the CVM front card and the BC-T1 back card. Japanese
J1 connections use the CVM front card and the BC-J1 back card. The procedure for making J1
connections is the same as for T1 connections. Make the T1 connections as follows:
Step 1
Step 2
Step 3
The back slot line numbers correspond to the back slot number in which the BC-T1 card resides.
Record the back slot number of each line. These numbers are necessary for configuring the system
after you complete hardware installation.
Note
lines in ascending order.
3-16 Cisco IGX 8400 Series Installation and Configuration
Configure the cellbus bandwidth allocation with cnfbusbw if you plan to activate a large
number of ports on the UXM-E. Use dspbusbw or cnfbusbw to check cellbus usage and
changes in bandwidth requirements for the UXM-E. For an explanation of cellbus
bandwidth allocation, see the Cisco IGX 8400 Series Reference.
Cisco recommends that you not allow oversubscription. Refer to the Cisco IGX 8400 Series
To check the status of the lines, use dsplns.
To configure the duration, sample count and size, and peak values for historical port
statistics, use cnfportstats. Use dspportstats to display the summary statistics for cell
count, CLP cell count, OAM cell count, RM cell count, OAM cell count, unknown
VPI/VCI cell count, and optional LMI/ILMI status. Other applicable commands are:
dsplnerrs, dspportstatcnf and dspportstathist.
Bring each cable through the opening at the bottom of the cabinet (if applicable) and up
the back of the unit.
Use the cable management feature to help route the cables.
Connect the trunks to the connectors on the BC-T1s that mate with the CVM (not NTM).
The T1 lines are attached to DB-15, sub-miniature, 15-pin connectors on the BC-T1
cards.
If the number of lines is odd, connect as many as possible in pairs, and connect the remaining
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