H3C Technologies H3C MSR 50 - Manual (Page 149)

3-45
Figure 3-52 Extending a T1 cable
Router
DDN, etc
RJ45
Network interface connector
RJ45
Straight-through network cable
RJ45 shielding network cable)
T1 cable (100-ohm straight-through
Step3 Check the behavior of the LINK LED on the MIM-T1 or MIM-T1-F panel. It is OFF when the line is
faulty and signal is out of synchronization. In this case, check the link.
MIM-8T1/MIM-8T1-F
Introduction
1) MIM-8T1
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.
2) MIM-8T1-F
MIM-8T1-F, the 8-port fractional T1 interface module is different from the 8T1 module in the sense that:
z
The FT1 operating mode supported by the MIM-8T1-F module allows only one 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.
z
The MIM-8T1-F module does not support PRI mode.
Given a MIM-8T1 module, the system automatically creates a serial interface for 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:
Table 3-38 Interface attributes of the MIM-8T1 and the MIM-8T1-F
Attribute Description
Connector RJ-45
Number of connectors 1
Interface standard
z
G.703/T1 102
z
G.704
z
AT&T TR 54016
z AT&T TR 62411
z ANSI T1.403