Cisco ASR 903 Hardware Installation Guide

Installing the Chassis Ground Connection
Before you connect the power or turn on the power to the Cisco ASR 903 Router, you must provide an adequate
chassis ground (earth) connection to your router.
This section describes how to ground the Cisco ASR 903 Router chassis. The router provides two locations
for attaching a 2-hole grounding lug according to the rack-mounting brackets you use to install the router.
The Cisco ASR 903 Router supports the following rack-mounting types:
• EIA 19-inch rack—Attach the grounding lug to the rear of the router, as shown in the figure below.
Figure 53: Attaching a Grounding Lug to the Rear of the Router
Grounding lug (19-inch EIA rack)1
• 300 mm ETSI cabinet—Attach the grounding lug on the rack-mount bracket on the front of the router,
as shown in the figure below.
Figure 54: Attaching a Grounding Lug to the Rack-Mount Bracket
Cisco ASR 903 Aggregation Services Router Hardware Installation Guide
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Installing the Cisco ASR 903 Router
Installing the Chassis Ground Connection

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