Specifications

3-2
PA-8T-V.35 Synchronous Serial Port Adapter Installation and Configuration
OL-3563-03
Chapter 3 Removing and Installing Port Adapters
Online Insertion and Removal
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-8T-V.35 on Cisco 7100 series routers,
Cisco 7200 series routers, Cisco uBR7200 series, Cisco 7301 routers, or Cisco 7401ASR routers.
Although the Cisco 7304 PCI Port Adapter Carrier Card, the Catalyst RSM/VIP2, the Catalyst 6000
family FlexWAN module, and the VIP support online insertion and removal, individual port adapters do
not. To replace port adapters, you must first remove the Cisco 7304 PCI Port Adapter Carrier Card, VIP,
Catalyst RSM/VIP2, or Catalyst 6000 family FlexWAN module from the chassis and then install or
replace port adapters as required. If a blank port adapter is installed on the Cisco 7304 PCI Port Adapter
Carrier Card, the Catalyst RSM/VIP2, the Catalyst 6000 family FlexWAN module, or the VIP on which
you want to install a new port adapter, you must first remove the Cisco 7304 PCI Port Adapter Carrier
Card, the Catalyst RSM/VIP2, the Catalyst 6000 family FlexWAN module, or the VIP from the chassis
and then remove the blank port adapter.
Caution To prevent system problems, do not remove port adapters from the Cisco 7304 PCI Port Adapter Carrier
Card, the Catalyst RSM/VIP2, the Catalyst 6000 family FlexWAN module, or the VIP, or attempt to
install other port adapters on the motherboard when the system is operating. To install or replace port
adapters, first remove the Cisco 7304 PCI Port Adapter Carrier Card, the Catalyst RSM/VIP2, the
Catalyst 6000 family FlexWAN module, or the VIP from its interface processor slot.
It is wise to gracefully shut down the system before removing a port adapter that has active traffic moving
through it. Removing a module while traffic is flowing through the ports can cause system disruption.
Once the module is inserted, the ports can be brought back up.
Note As you disengage the module from the router or switch, online insertion and removal (OIR)
administratively shuts down all active interfaces in the module.
OIR allows you to install and replace 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 module 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.
The following is a functional description of OIR for background information only; for specific
procedures for installing and replacing a module in a supported platform, refer to the “Port Adapter
Removal and Installation” section on page 3-4.
H6420
Metal carrier
Printed circuit board