4000 Router Series Interface Module Guide

Item Description

Supported services

• Backup

• Terminal access service

• ISDN PRI (only supported by the HMIM-2T1)

Interface LEDs

Figure 85 HMIM-2T1 panel

Figure 86 HMIM-4T1-F panel

Table 118 HMIM-2T1/HMIM-4T1-F LED description

LEDs Descri

tion

LINK/ACT

• ON means the carrier signal has been received.

• OFF means no carrier signal has been received.

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

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.

Interface cables and the connection methods

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

E3/T3 interface module

• HMIM-1CE3

• HMIM-1CT3

HMIM-1CE3

Introduction

The 1-port channelized E3 interface module (HMIM-1CE3) serves to:

• Transmit/receive and handle one channel of E3 fast traffic, as well as provide the accessing of E3

traffic when operating in E3 mode.

• Provide the low-speed accessing service at the speed of n x 64 kbps, where "n" is smaller than or

equal to 128, when operating in CE3 mode.