H3C MSR 20 Series Manual page 125

Interface Card and Interface Module Manual
H3C MSR 20/30/50 Series Routers
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
Connector
Number of connectors
Interface standard
Interface rate
Interface cable type
Operating mode
Supported service
3.11.3 Interface LEDs
MIM-1CT3 panel is shown in the following figure:
Figure 3-50 MIM-1CT3 panel
Attribute
3-41
Chapter 3 Multifunctional Interface Modules
Description
SMB
2
G.703
G.704
G.752
AT&T TR 54014
AT&T TR 62415
ANSI T1.107
44.736 Mbps
T3 cable (75-ohm coaxial cable)
T3
CT3
T3 leased line