Doc. No.
78-1265-01
Installing A/B Port Cards
Product Numbers: WS-C1511=, WS-C1513=, and WS-C1514=
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. It occurs when
electronic components are improperly handled and can result in complete or intermittent failures.
Always follow ESD-prevention procedures when removing and replacing components. Ensure that
the chassis is electrically connected to earth ground using an ESD mat or a ground wire. Wear an
ESD-preventive wrist strap, ensuring that it makes good skin contact. To safely channel unwanted
ESD voltages to ground, connect the clip to the surface of an unpainted chassis frame. To properly
guard against ESD damage and shocks, the wrist strap and cord must operate effectively. If no wrist
strap is available, ground yourself by touching the metal part of the chassis.
Caution For safety, periodically check the resistance value of the antistatic strap, which should be
between 1 and 10 mega ohms.
About this Publication
This publication includes the procedures required to install Copper Distributed Data Interface
multilevel transmission (CDDI/MLT-3) and Fiber Distributed Data Interface (FDDI) A/B port cards
in the workgroup switch and concentrator models that use this card. The equal sign (=) appended to
the product numbers designates these products as spare parts.
Following are the sections and procedures included:
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Copyright © 1994
Cisco Systems, Inc.
All rights reserved.
Cabling Requirements
— FDDI
— CDDI
A/B Port Cards
— Port Card Installation
— Port Card Removal
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