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Cisco FlexWAN and Enhanced FlexWAN Modules Installation Guide
OL-8357-01
Chapter 1 Installing the FlexWAN and Enhanced FlexWAN Modules
Installing a FlexWAN or Enhanced FlexWAN Module Port Adapter
Handling Port Adapters
Each port adapter circuit board is mounted to a metal carrier and is sensitive to electrostatic discharge
(ESD) damage.
Caution
Always handle the port adapter by the carrier edges and handle. Never touch the port adapter’s
components or connector pins.
Figure 1-5
Handling a Port Adapter
Caution
To prevent system problems, do not remove port adapters from the FlexWAN or Enhanced FlexWAN
modules or attempt to install other port adapters on the modules when the module is operating.
Replacing Port Adapters
Although the FlexWAN or Enhanced FlexWAN module supports online insertion and removal,
individual port adapters do not. To replace port adapters, you must first remove the module from the
chassis, and then install or replace the port adapters as required.
When a Port Adapter Is Not in Use
When a port adapter slot is not in use, a blank port adapter must fill the empty slot to allow the router or
switch to conform to electromagnetic interference (EMI) emissions requirements and to allow proper
airflow across the port adapters.
If there is a blank port adapter on the FlexWAN or Enhanced FlexWAN module in which you want to
install a new port adapter, you must first remove the module from the chassis, and then remove the blank
port adapter.
H6420
Metal carrier
Printed circuit board
