H3C Technologies H3C MSR 50 - Manual (Page 146)

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Step4 Power on the router. Check the behavior of the LINK LED on the module panel. It is OFF when fault
has occurred on the link and signal is out of synchronization. In this case, please check the link.
MIM-1T1/MIM-2T1/MIM-4T1/MIM-1T1-F/MIM-2T1-F/MIM-4T1-F
Introduction
1) MIM-1T1/MIM-2T1/MIM-4T1
1/2/4-port channelized T1/PRI interface module (MIM-1T1/MIM-2T1/MIM-4T1) serves to
transmit/receive and handle T1 data streams, provide CT1 access, and fulfill the function of ISDN PRI.
Thereby, one module can be used for multiple purposes.
2) MIM-1T1-F/MIM-2T1-F/MIM-4T1-F
1/2/4-port fractional T1 interface module (MIM-1/2/4T1-F) and MIM-1/2/4T1 module are different in the
sense that:
z
FT1 operating mode supported by T1-F modules allows only one bundle. In other words, the time
slots can only be bundled into one nx64 kbps or 56 kbps channel, where n=1-24. However, a CT1
module allows of arbitrary grouping of the 24 channels;
z
T1-F does not support PRI mode.
Given a MIM-1T1 module, the system automatically creates a serial interface for each timeslot bundle
formed on a controller T1 interface.
Interface attributes
The interface attributes of MIM-1T1/MIM-2T1/MIM-4T1 and MIM-1T1-F/MIM-2T1-F/MIM-4T1-F
modules are given in the following table:
Table 3-36 Interface attributes of MIM-1T1/MIM-2T1/MIM-4T1 and MIM-1T1-F/MIM-2T1-F/MIM-4T1-F
modules
Attribute Description
Connector RJ-45
Number of connectors
z
1 (MIM-1T1/MIM-1T1-F module)
z
2 (MIM-2T1/MIM-2T1-F module)
z
4 (MIM-4T1/MIM-4T1-F module)
Interface standard
z G.703/T1.102
z
G.704
z
AT&T TR 54016
z
AT&T TR 62411
z
ANSI T1.403
Interface rate 1.544 Mbps
Cable type T1 cable (100-ohm shielding network cable)
Operating mode
CT1, ISDN PRI (MIM-1T1/MIM-2T1/MIM-4T1 module)
FT1 (MIM-1T1-F/MIM-2T1-F/MIM-4T1-F module)