Ac Power Specifications; Fan Tray - Cisco ASR 903 Hardware Installation Manual

Chapter 1 Cisco ASR 903 Router Overview
Table 1-2
Part number
Input power specification
Input voltage
Minimum output voltage
Maximum output voltage
Wire gauge for DC input power connections
Power dissipation

AC Power Specifications

Table 1-3
Part number
Input power specification
Input voltage
Minimum input voltage
Maximum input voltage
Minimum output voltage
Maximum output voltage
Power dissipation

Fan Tray

The Cisco ASR 903 Router uses a modular fan tray that is separate from the power supply. The fan tray
contains twelve fans and provides sufficient capacity to maintain operation indefinitely in the event of
an individual fan failure.
The fan tray has the following hardware features:
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•
•
•
•
OL-25178-04
DC Power Supply Specifications
AC Power Supply Specifications
It provides side-to-side forced air cooling
It provides redundant fans
It is field replaceable
It contains status LEDs
It contains an alarm port with four external alarm inputs
Cisco ASR 903 Router Features
A900-PWR550-D
+24/-48 VDC
-48/-60 VDC
-36/18 VDC
-72/36 VDC
12 AWG minimum for -48/-60 VDC.
8 AWG minimum for 24 VDC.
Connector accepts 8 AWG maximum.
600 W
A900-PWR550-A
115VAC/ 230VAC
85/264 VAC
85 VAC
264 VAC
12V
12.4V
600 W
Cisco ASR 903 Router Hardware Installation Guide
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