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MIM-1CT3 Module 99
■ 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
■ 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.
n
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:
Interface LEDs MIM-1CT3 panel is shown in the following figure:
Figure 112 MIM-1CT3 panel
The following table describes the LEDs on the MIM-1CT3 panel:
Table 58 Interface attributes of MIM-1CT3
Attribute Description
Connector SMB
Number of connectors 2
Interface standard G.703
G.704
G.752
AT&T TR 54014
AT&T TR 62415
ANSI T1.107
Interface rate 44.736 Mbps
Interface cable type T3 cable (75-ohm coaxial cable)
Operating mode T3
CT3
Supported service T3 leased line