4000 Router Series Interface Module Guide

HMIM-1VT1

Introduction

The 1-port T1 voice interface module (HMIM-1VT1) can handle dense voice signals in VoIP system. It

provides a CT1/PRI port, allowing the access of 24 channels of voice signals.

Interface specifications

Table 129 HMIM-1VT1 interface specifications

Item Description

Connector RJ-45

Number of connector 1

Interface standard

• G.703/T1.102

• G.704

• AT & T TR 54016

• AT & T TR 62411

• ANSI T1.403

Interface rate 1.544 Mbps

Cable type T1 cable (100-ohm standard shielded cable)

Operation mode

• CT1

• ISDN PRI

Services

• Backup

• Terminal access

• ISDN

Interface LEDs

Figure 93 HMIM-1VT1 panel

Table 130 HMIM-1VT1 LED description

LED Descri

tion

LINK/ACT

• ON means carrier signal has been received.

• OFF means no carrier signal has been received.

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

LP/AL

• ON means the interface is in a loopback.

• OFF means no loopback or alarm is present.

• Flashing means an alarm indication signal (AIS), loss of frame alignment

(LFA) signal, or remote alarm indication (RAI) signal is present.