Cisco ASR 903 Hardware Installation Guide

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.
Figure 27: 48 x T3/E3 Interface Module
Figure 28: 48-port T3/E3 Faceplate
For information on supported SFP modules, see Cisco ASR 900 Series Aggregation Services Routers Data
Sheet.
For more information about installing an optical interface module, see Interface Module Installation.
4-port OC3/STM-1 (OC-3) or 1-port OC12/STM-4 (OC-12) Interface Module
The 4-port OC3/STM-1 (OC-3) or 1-port OC12/STM-4 (OC-12) interface module can operate as up to four
STM-1 interfaces. The figure below shows the interface module.
Cisco ASR 903 Aggregation Services Router Hardware Installation Guide
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Cisco ASR 903 Router Overview
Interface Modules

Cisco ASR 903 Specifications

General

Form Factor	Modular
Storage Temperature	-40°C to 70°C (-40°F to 158°F)
Humidity	5% to 95% non-condensing
Redundancy	Yes, redundant power supplies and route processors
Operating System	Cisco IOS XE
Power Supply	AC or DC
Switching Capacity	240 Gbps
Operating Temperature	-40°C to 65°C (-40°F to 149°F)
MTBF	200, 000 hours
Supported Protocols	IPv4, IPv6, MPLS, L2VPN, L3VPN
Interfaces	Gigabit Ethernet, 10 Gigabit Ethernet, T1/E1