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PA-POS-1OC3 Single-Port Port Adapter Installation and Configuration Guide
OL-6514-04
Chapter 3 Removing and Installing the PA-POS-1OC3
Online Insertion and Removal
Caution Always handle the port adapter by the carrier edges and handle; never touch the port adapter components
or connector pins. (See Figure 3-1.)
Figure 3-1 Handling a Port Adapter
Online Insertion and Removal
Several platforms support online insertion and removal (OIR) of port adapters; therefore, you do not
have to power down routers when removing and replacing a PA-POS-1OC3 in the Cisco 7200 VXR
routers, Cisco 7201 router, Cisco 7301 router, or Cisco 7401ASR router.
For the Cisco 7304 router, you must remove the Cisco 7304 PCI port adapter carrier card before
removing or replacing port adapters.
For Cisco 7500 series routers, you must remove the VIP before removing and replacing port adapters.
For Cisco 7600 series routers, you must remove the FlexWAN module before removing or replacing port
adapters.
It is wise to gracefully shut down the system before removing a port adapter or module that has active
traffic moving through it. Removing a port adapter or module while traffic is flowing through the ports
can cause system disruption. Once the port adapter or module is inserted, the ports can be brought back
up.
Note As you disengage the port adapter from the router or switch, online insertion and removal (OIR)
administratively shuts down all active interfaces in the port adapter.
OIR allows you to install and replace port adapters or service adapters (carrier cards, VIPs and FlexWAN
modules) while the router is operating; you do not need to notify the software or shut down the system
power, although you should not run traffic through the port adapter you are removing while it is being
removed. OIR is a method that is seamless to end users on the network, maintains all routing
information, and preserves sessions.
H6420
Metal carrier
Printed circuit board