Table of Contents
Advertisement
Inverse Multiplexer for ATM Trunk Module
The IMATM is a two-card set consisting of a function module front card and a line module back card.
The following front card and line module sets are available:
Front card:
Back card:
T1 Line interface connector:
T3 Line interface connector:
Front card:
Back card:
E1 Line interface connector:
E3 Line interface connector:
Front card:
Back card:
E1 Line interface connector:
E3 Line interface connector:
The shelf may contain one or multiple IMATM card sets in any available service module slot.
1:1 IMATM redundancy is achieved by installing two card sets and a Y-cable.
The IMATM performs no MGX 8220 functions and is solely an extension to the BPX 8620 BNI card.
The BPX 8620 can use up to eight T1 or E1 lines as a trunk (instead of a single T3 or E3 line) by using
an IMATM card in the MGX 8220 shelf.
The IMATM accepts trunk signals from the BPX 8620 BNI over a single T3 or E3 connection and
inverse multiplexes over multiple T1 or E1 lines. The other end of the inversed multiplexed trunk is
another IMATM card in a remote MGX 8220 shelf. (See Figure 4-12.)
Figure 4-12 IMATM Application
BPX
8620
BCC BNI
T1/E1 lines
The IMATM can also be used to connect a remote MGX 8220 shelf to a BPX 8620 hub as shown in
Figure 4-13.
Cisco MGX 8220 Installation and Configuration
4-24
IMATM-8T1
RJ48-T3T1
Miniature RJ-48C
BNC
IMATM-8E1
RJ48-E3E1
Miniature RJ-48C
BNC, 75
IMATM-8E1
SMB-E3E1
Miniature SMB
Miniature SMB
MGX 8220
BNM
T3/E3
ASC
Up to 8 T1/E1
IMATM
T3/E3
Service
modules
SRM
MGX 8220
BPX
BNM
8620
T3/E3
ASC
IMATM
BNI
BCC
T3/E3
Service
modules
T1/E1 lines
SRM
Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003
Chapter
Advertisement
Table of Contents
Troubleshooting
