Prerequisites and Preparation
Preventing Electrostatic Discharge Damage
Many router components can be damaged by static electricity. Not exercising the proper electrostatic
discharge (ESD) precautions can result in intermittent or complete component failures. To minimize the
potential for ESD damage, always use an ESD-preventive antistatic wrist strap (or ankle strap) and
ensure that it makes good skin contact.
You should periodically check the resistance value of the ESD-preventive strap. Ensure the measurement
is between 1 and 10 megohms.
Before performing the procedures in this guide, attach an ESD-preventive strap to your wrist and connect
the leash to the chassis or to another grounded, bare metal surface as shown in
Connecting an ESD-Preventive Wrist Strap to the Chassis
Cisco 12016, Cisco 12416, and Cisco 12816 Router Blower Module and Air Filter Replacement Instructions