3Com MSR 30 Accessing of T3 traffic when working in T3 mode, Interface attributes of MIM-1CT3

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:
	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
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: