Online Insertion And Removal - Cisco ASR 9901 Hardware Installation Manual

Online Insertion and Removal

Online Insertion and Removal
Some field-replaceable units (FRUs) for the Cisco ASR 9000 Series Routers can be removed and replaced
with the power on and the system operating. This facility is known as online insertion and removal (OIR).
Unless otherwise noted, the maintenance tasks described in this chapter can be performed while the router
remains powered on.
Powering Off the Router
Caution Do not turn off the switch on the power tray to remove individual power modules. Power modules support
OIR, so they can be removed and replaced with the power on and the system operating.
If it becomes necessary to turn all power off to the router, follow these steps:
Procedure
Step 1 Set the power switch on the chassis to the off (0) position.
Figure 106: Power Switch on the Cisco ASR 9901
Cisco ASR 9901, ASR 9001, and ASR 9001-S Routers Hardware Installation Guide
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Replacing Router Components