Installation guide

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Cisco IGX 8400 Series Installation Guide, Release 9.3.3 and Later Releases
OL-1165-06
Chapter 3 Installing the IGX
Installing Voice Cards
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 Bring each cable through the opening at the bottom of the cabinet (if applicable) and up the back of the
unit.
Step 2 Use the cable management feature to help route the cables.
Step 3 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, subminiature, 15-pin connectors on the BC-T1 cards.
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 If the number of lines is odd, connect as many as possible in pairs, and connect the remaining
lines in ascending order.
Connecting a CVM to an E1 Line or a Subrate Trunk
Channelized voice or data connections on an E1 line use the CVM front card and the BC-E1 back card.
Subrate E1 connections use the CVM front card and the BC-SR back card. The E1 trunk interface card
BC-E1 contains the E1 connector (G.703 Input/Output) that resides at the top of the back card. The
BC-E1 faceplate has four, 75-ohm BNCs.
Note The BC-E1 faceplate provides two connector arrangements for attaching E1 lines. Use either the two
BNC (RX and TX) connectors or the 15-pin DB connector.
Make the E1 connections as follows:
Step 1 Bring each E1 BNC patch cable (or 15-pin cable) through the opening at the bottom of the cabinet (if
applicable) and up the back of the unit.
Note Some versions of the BC-E1 use a metal BNC connector instead of a plastic BNC. For
terminating 75- or 120-ohm balanced E1 lines to the metal BNC connectors on these back cards,
remove and discard the BNC mounting nuts. With the mounting nuts removed, the ground that
normally appears on one side of the connector shell is also removed. This step is not required
for DB-15 connectors or for back cards that use the plastic BNC connectors.
Step 2 Attach the cabling to connectors on the BC-E1s that mate with the CVM (not an NTM).
Step 3 Use the cable management feature to help route the cables.