4000 Router Series Interface Module Guide

Attribute Description

Cable type 75-ohm 8E1 conversion cable

Max transmission

distance

500 m (1640.4 ft)

Operating mode ATM E1 independent link/IMA bundle mode

Supported service

AAL5 (ATM adaptation layer 5)

Protocol PPPoA, PPPoEoA, IPoA, IPoEoA

Service type CBR/VBR-rt/VBR-nrt/UBR

Interface LEDs

The following figures illustrate the MIM-IMA-8E1 panels.

Figure 43 MIM-IMA-8E1 (75-ohm) panel

The following table describes these LEDs on the IMA-8E1 panel.

Table 67 Description for the LEDs on the IMA-8E1 panel

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.

LP/AL

• ON means the interface is in a loopback.

• Flashing means an AIS, LFA, or RAI alarm signal is present.

• OFF means no loopback or alarm is present.

Note:

AIS = Alarm indication signal; LFA = loss of frame alignment; RAI = Remote alarm indication

Interface cables and the connection methods

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

MIM-IMA-4T1

Introduction

The 4-port ATM inverse multiplexing interface module (MIM-IMA-4T1) provides four/eight T1 interfaces

that support the IMA technology. Their network application is similar to that of the

MIM-IMA-4E1/MIM-IMA-8E1 module.

Interface attributes

The following table describes the interface attributes of the MIM-IMA-4T1 module.