4000 Router Series Interface Module Guide

Interface cables and the connection methods

For more information about T1 interface cables and the connection methods, see "T1 interface."

HMIM-4FXS/HMIM-4FXO

Introduction

The 4-port voice subscriber circuit interface module (HMIM-4FXS) processes and transmits over data

communications networks voice signals for 2/4 regular analog phones, faxes, or AT0 loop trunks of

telephone exchanges.

The 4-port voice AT0 analog trunk interface module (HMIM-4FXO) processes and transmits over data

communications networks voice signals for 2/4 loops of telephone exchanges.

Interface specifications

Table 131 HMIM-4FXS/HMIM-4FXO interface specifications

Item Descri

tion

Connector

RJ-45

Number of connectors

Cable

• Telephone cable with ferrite core

• E&M trunk cable (only for E&M modules, made on site)

Interface standard

• ITU Q.512-compliant subscriber circuit interface (HMIM-4FXS)

• ITU Q.552-compliant loop trunk interface (HMIM-4FXO)

• ITU K.20-compliant over-current and over-voltage protection

Dial-up mode

DTMF, compliant with GB3378 (Pulse dial-up is not available.)

Bandwidth

300 Hz to 3400 Hz

Interface LEDs

Figure 94 HMIM-4FXS panel

Figure 95 HMIM-4FXO panel

Table 132 HMIM-4FXS/HMIM-4FXO LED description

LED Descri

tion

LINK

• ON means a link is present.

• OFF means no link is present.

ACT

• ON means there is call activity.

• OFF means the channel is idle.