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Cisco ASR 903 Router Hardware Installation Guide
OL-25178-05
Chapter1 Cisco ASR 903 router Overview
CiscoASR 903 router Features
Side-to-side forced air cooling
Temperature range of -40 to 149 degrees F (-40 to 65 degrees C) with DC power supply
Temperature range of -32 to 104 degrees F (0 to 40 degrees C) with AC power supply
Figure 1-1 illustrates the Cisco ASR 903 router chassis design.
Figure1-1 CiscoASR 903 router Chassis Design
System Specifications
Table 1 -1 summarizes the system specifications and environmental requirements for the
CiscoASR903router.
1 Interface modules
2 RSP unit
3Fan tray
4 Redundant power units (two DC power units are shown)
GE-0 GE-1 GE-2 GE-3 GE-4 GE-5 GE-6 GE-7
PWR
STAT
GE-0 GE-1 GE-2 GE-3 GE-4 GE-5 GE-6 GE-7
PWR
STAT
GE-0 GE-1 GE-2 GE-3 GE-4 GE-5 GE-6 GE-7
PWR
STAT
PWR
STAT
L 0 S L 1 S L 2 S L 3 S L 4 S L 5 S L 6 S L 7 S
PWR
STAT
L 0 S L 1 S L 2 S L 3 S L 4 S L 5 S L 6 S L 7 S
PWR
STAT
L 0 S L 1 S L 2 S L 3 S L 4 S L 5 S L 6 S L 7 S
INPUT
OK
OUTPUT
FAIL
24V—60V 28A
INPUT
OK
OUTPUT
FAIL
24V—60V 28A
281927
RUDY RSP
MEM TOD BITS MGMT
ENET
1PPS
IN
1PPS
OUT
1OMHZ
OUT
1OMHZ
IN
CONSOLE
SYNC
ACT
PWR
STAT
ALARM
FAN TEMP
CRIT MAJ MIN

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Table1-1 CiscoASR 903 router System Specifications
Dimensions (Height x Width x Depth) 5.22 in. x17.44 in. x 10.565 in.
(132.588 x 442.976 x 268.351 mm)
Note This measurement includes handles from
the power supply, fan tray, and interface
modules installed in the chassis.
Weight 27.117 pounds (12.3 kg)
Note This weight includes a redundant RSP and
power supply.