3com MSR 20 Manual Do Utilizador
MIM-8T1/MIM-8T1-F Module
95
MIM-8T1/MIM-8T1-F
Module
Module
Introduction
MIM-8T1 module
MIM-8T1, the 8-port channelized T1/PRI interface module, transmits, receives, and
processes eight channels of T1 data traffic. In addition, you can use the module for
other purposes, such as CT1 access and the ISDN PRI function.
processes eight channels of T1 data traffic. In addition, you can use the module for
other purposes, such as CT1 access and the ISDN PRI function.
MIM-8T1-F module
MIM-8T1-F, the 8-port fractional T1 interface module is different from the 8T1
module in the sense that:
module in the sense that:
■
The FT1 operating mode supported by the MIM-8T1-F module allows only one
n
n
× 64 kbps or n × 56 kbps bundle to be formed on each interface, where n =
1 to 24. However, the MIM-8T1 module allows arbitrary grouping of 24
channels and therefore multiple bundles.
channels and therefore multiple bundles.
■
The MIM-8T1-F module does not support PRI mode.
n
Given a MIM-8T1 module, the system automatically creates a serial interface for
each timeslot bundle formed on a controller T1 interface.
each timeslot bundle formed on a controller T1 interface.
Interface Attributes
The interface attributes of the MIM-8T1 and the MIM-8T1-F are given in the
following table:
following table:
Interface LEDs
MIM-8T1 and MIM-8T1-F panels are similar. The following figure illustrates an
MIM-8T1 panel.
MIM-8T1 panel.
Table 54 Interface attributes of the MIM-8T1 and the MIM-8T1-F
Attribute Description
Connector RJ-45
Number of connectors
1
Interface standard
G.703/T1 102
G.704
AT&T TR 54016
AT&T TR 62411
ANSI T1.403
Interface rate
1.544 Mbps
Cable type
8T1 conversion cable
Operating mode
CT1, ISDN PRI (only supported by the
MIM-8T1)
MIM-8T1)
FT1 (only supported by the MIM-8T1-F)
Supported service
1) Backup
2) Terminal access service
3) ISDN PRI (only supported by the
MIM-8T1)
MIM-8T1)