Chapter 2 Preparing for Installation
Safety with Electricity
2-8
Cisco 12404 Internet Router Installation and Configuration Guide
OL-11636-01
Safety with Electricity
Cisco 12404 Internet router field replaceable units (FRUs) offer the online
insertion and removal capability, which means an FRU is hot swappable and can
be removed and replaced while the system is operating without presenting an
electrical hazard or damage to the system.
The following FRUs are hot swappable:
•
Line cards
•
Fan tray assembly
•
AC PEM (when redundant modules are installed)
•
DC PEM (when redundant modules are installed)
•
Air filter
todd.book Page 8 Tuesday, November 27, 2007 6:02 PM