3Com MSR 20, MSR 30, MSR 50 manual MIM-1AT3 Module, MIM-1AT3 panel is shown in the following figure

MIM-1AT3 Module 109

Step 2: Connect the SMB connector of another E3/T3 cable to the Rx port of

MIM-1AE3 module and another end to the Tx port on the device to be connected;

Step 3: Check the behavior of the LINK LED on the MIM-1AE3 panel. It is OFF when fault has occurred on the link and signal is out of synchronization. In this case, please check the link.

MIM-1AT3 Module

Introduction 1-port 44.736 Mbps ATM-T3 interface module (MIM-1AT3) supports:

■Two ATM cell mapping modes: ADM and PLCP;

■Scrambling in data transmission;

■Both line clock (when working as DTE interface) and internal clock (when working as DCE interface);

■Four types of test measures, i.e., local cell loopback, local payload loopback, remote payload loopback, and remote line loopback.

n You are allowed to equip an H3C Series Router with MIM-AT3 modules to its full capacity. Yet, you are recommended to install only one MIM-AT3 module on it, whatever its model is, to ensure the performance of some key services.

Interface Attributes	The interface attributes of MIM-1AT3 are given in the following table:
	Table 69 Interface attributes of MIM-1AT3 module
	Attribute	1AT3 Module
	Connector	SMB
	Connector number	2
	Interface standard	G.703, G.704, G.823
	Interface rate	44.736 Mbps
	Cable	E3/T3 cable (75-ohm coaxial cables)
	Supported service	ATM Traffic CBR, rt_VBR, nrt_VBR, UBR
n	In the supported services described in the above table, CBR represents Constant
	Bit Rate, rt_VBR represents Variable Bit Rate-Real Time, nrt_VBR represents
	Variable Bit Rate-Non Real Time, and UBR represents Unspecified Bit Rate.
Interface LEDs	MIM-1AT3 panel is shown in the following figure:
	Figure 122 MIM-1AT3 panel

The following table describes the LEDs on the MIM-1AT3 panel: