4000 Router Series Interface Module Guide

Interface cables and the connection methods

For more information about E1 interface cables, see "E1 interface."

HMIM-8E1

Introduction

The 8-port channelized E1/PRI interface module (HMIM-8E1) transmits, receives, and processes eight

channels of E1 data traffic. In addition, you can use the module for other purposes, such as CE1 access

and the ISDN PRI function.

NOTE:

Given a HMIM-8E1 module, the system automatically creates a serial interface for each timeslot bundle

formed on a controller E1 interface.

Interface specifications

Table 116 HMIM-8E1 interface specifications

Item Descri

tion

Connector type D68

Number of connectors 1

Interface standard G.703

Interface rate 2.048 Mbps

Cable type 75-ohm 8E1 conversion cable

Cable characteristic impedance 75 ohm

Operating mode E1, CE1, ISDN PRI

Supported services

• Backup

• Terminal access service

• ISDN PRI

Interface LEDs

Figure 83 HMIM-8E1 (75-ohm) panel

Figure 84 HMIM-8E1 LED description

LED Descri

tion

LINK/ACT

• ON means carrier signal has been received.

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

• OFF means no carrier signal has been received.