H3C Technologies H3C MSR 50 - Manual (Page 153)

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MIM-1CE3 and 1CT3 adopt the same cable, which is called E3/T3 cable in this manual.
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The standard shipment package of MIM-1CE3 does not include the interface cable.
Connecting the interface cable
Some measures have been taken to protect the MIM-1CE3 module. To achieve better lightning
protection effects, however, you are recommended to add a special lightning arrester at the input end of
the E3 or T3 cable when it is led outdoors.
Step1 Connect the SMB connector of an E3 or T3 cable to the Tx port of MIM-1CE3 and another end to the
Rx port of the device to be connected;
Step2 Connect the SMB connector of another E3 or T3 cable to the Rx port of MIM-1CE3 and another end to
the Tx port of the peer device;
Step3 Check the behavior of the LINK LED on the MIM-1CE3 panel. It is OFF when the line is faulty and
signal is out of synchronization. In this case, check the link.
MIM-1CT3
Introduction
1-port channelized T3 interface module (MIM-1CT3) serves to:
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Transmit/Receive and handle one channel of T3 fast traffic, as well as provide the accessing of T3
traffic when working in T3 mode; and
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Provide the low-speed accessing service at the speed of n × 64 kbps or 56 kbps, where n is smaller
than or equal to 128, when working in CT3 mode.
T3 represents the tertiary group rate of T system in the TDM system, that is, 44.736 Mbps. A T3 channel
can be channelized into 28 T1 lines through the demultiplexing processes of T23 and T12, each T1 line
also supporting the operating modes of CT1. T23 is used to indicate either T2-to-T3 multiplex or
T3-to-T2 demultiplex, and T12 to indicate T1-to-T2 multiplex or T2-to-T1 demultiplex. “T23” and “T12”
discussed here represent the demultiplex process.
Interface attributes
The interface attributes of MIM-1CT3 are given in the following table: