4000 Router Series Interface Module Guide

LED Descri

tion

ACT

• OFF means no data is being transmitted or received;

• Flashing means data is being received or/and transmitted.

Interface cables and the connection methods

For more information about the Ethernet interface cables and the connection methods, see "Ethernet

interface."

ATM interface module

• MIM-1ATM-OC3

• MIM-IMA-8E1

• MIM-IMA-4T1

MIM-1ATM-OC3

Introduction

MIM-1ATM-OC3 is short for 1-port ATM (Asynchronous Transfer Mode) 155 Mbps optical interface

module.

The ATM module functions in the system to provide ATM interfaces for routers, supporting:

• Two frame formats: SDH STM-1 and SONET OC-3;

• Scrambling in data transmission;

• Both line clock (when working as DTE interface), and internal clock (when working as DCE

interface);

• Three types of test measures, that is, local cell loopback, local payload loopback, and remote

loopback.

Interface attributes

The following table describes the interface attributes of the MIM-1ATM-OC3 module. For more

information about the attributes of the optional SFP transceiver modules, see "100-Mbps SFP transceiver

module."

Table 64 Interface attributes of MIM-1ATM-OC3

Attribute MIM-1ATM-OC3

Number of

interfaces

Connector SFP/LC

Interface

standard

SONET OC-3/SDH STM-1

Operating

mode

1000 Mbps

Full-duplex