Cisco ASR 903 Installation Guide

48-Port T1/E1 CEM Interface Module
The 48-port T1/E1 interface module provides connectivity for up to 48 T1/E1 ports through 3 high-density
connectors on the front panel (as shown in figure 48-port T1/E1 Faceplate). Each port supports 16 TX and
RX ports. For information on LEDs, see Interface Module LEDs.
Figure 29: 48-port T1/E1 Interface Module
Figure 30: 48-port T1/E1 Faceplate
For more information about installing an optical interface module, see Interface Module Installation.
48-Port T3/E3 CEM Interface Module
The 48-port T3/E3 interface module provides connectivity for up to 48 T3/E3 ports through 3 high-density
connectors on the front panel (see the figure below ). Each port supports 16 TX and RX ports. For information
on LEDs, see Interface Module LEDs.
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
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Overview
48-Port T1/E1 CEM Interface Module

Cisco ASR 903 Specifications

General

Brand	Cisco
Model	ASR 903
Category	Network Router
Language	English