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Interface Card and Interface Module Manual
H3C MSR 20/30/50 Series Routers
Chapter 3 Multifunctional Interface Modules
3-28
3.7 MIM-8E1/MIM-8E1-F Module
3.7.1 Introduction
I. MIM-8E1 module
MIM-8E1, the 8-port channelized E1/PRI interface module, transmits, receives, and
processes eight channels of E1 data traffic. In addition, you can use the module for
other purposes, such as CE1 access and the ISDN PRI function.
II. MIM-8E1-F module
MIM-8E1-F, the 8-port fractional E1 interface module is different from the MIM-8E1
module in the sense that:
z
The FE1 operating mode supported by the MIM-8E1-F module allows only one n ×
64 kbps bundle to be formed on each interface, where n = 1 to 31. However, an
MIM-8E1 module allows arbitrary grouping of 31 channels and therefore multiple
bundles.
z
The MIM-8E1-F module does not support PRI mode.
Note:
Given a MIM-8E1 module, the system automatically creates a serial interface for each
timeslot bundle formed on a controller E1 interface.
3.7.2 Interface Attributes
The interface attributes of the MIM-8E1 and the MIM-8E1-F are given in the following
table:
Table 3-14
Interface attributes of the MIM-8E1 and the MIM-8E1-F
Description
Attribute
MIM-8E1/MIM-8E1-F module
(75-ohm)
MIM-8E1/MIM-8E1-F module
(120-ohm)
Connector DB-68
Number of
connectors
1
Interface
standard
G.703
Interface rate
2.048 Mbps
Cable type
75-ohm 8E1 conversion cable
120-ohm 8E1 conversion
cable