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Interface Card and Interface Module Manual
H3C MSR 20/30/50 Series Routers
Chapter 3 Multifunctional Interface Modules
3-41
Note:
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.
3.11.2 Interface Attributes
The interface attributes of MIM-1CT3 are given in the following table:
Table 3-22
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
3.11.3 Interface LEDs
MIM-1CT3 panel is shown in the following figure:
Figure 3-50
MIM-1CT3 panel