◦
Up to two DC or two AC or a combination of AC and DC power supply units
◦
One fan tray
•
Network frequency, phase, and time inputs and outputs for network interfaces (SyncE and TDM), BITS,
1 PPS or 10 MHz and Timing over Packet (IEEE 1588-2008)
•
Adjustable front and rear rail mounting locations
•
Front panel access to power supplies, fan tray, RSP, and interface modules
•
Online insertion and removal (OIR) of interface modules, power supplies, and fan tray
•
Discrete status LEDs on power supply, interface module, RSP, and fan tray units
•
Two alarm dry contact inputs (either normally open or normally closed)
•
Environmental-monitoring and environmental-reporting functions
•
LED indicators for critical, major, and minor alarms
•
Side-to-side forced air cooling
•
Temperature range of -40 to 149 degrees F (-40 to 65 degrees C) with 550W DC power supply
•
Temperature range of 32 to 122 degrees F (-5 to 55 degrees C) with 550W AC power supply
The figure below illustrates the Cisco ASR 902 Router chassis design.
Figure 1: Cisco ASR 902 Router Chassis Design
Component
Label
Interface modules
1
RSP unit
2
Fan tray
3
Redundant power units (two DC power units are
shown)
4
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
2
Overview
Cisco ASR 902 Router Features