Cisco 1760 Hardware Installation Guide - Page 95
Preventing Electrostatic Discharge Damage - router vpn
UPC - 746320684857
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Appendix D Installing the Virtual Private Network Module Before You Begin Warning Only trained and qualified personnel should be allowed to install or replace this equipment. Warning Hazardous network voltages are present in WAN ports regardless of whether power to the router is OFF or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables, detach the end away from the router first. Preventing Electrostatic Discharge Damage Before installing a VPN module, read the electrostatic discharge (ESD) instructions in this section. ESD is a discharge of stored static electricity that can damage equipment and impair electrical circuitry. It occurs when electronic components are improperly handled and can result in complete or intermittent failures. The following are guidelines for preventing ESD damage: • Before opening the chassis, turn the router power switch to off ( O ). • Disconnect the power cable to the router. • Always use an ESD-preventive wrist or ankle strap, and ensure that it makes good skin contact. • Avoid contact between equipment and clothing. The wrist or ankle strap protects the equipment only from ESD voltages on the body; ESD voltages on clothing can still cause damage. • Handle printed circuit cards by the edges only. Avoid touching the components, traces, or any connector pins. • Place a removed card component on an antistatic surface or in a static shielding bag. • Do not remove the wrist or ankle strap until after you complete the installation. 78-13342-03 Cisco 1760 Modular Access Router Hardware Installation Guide D-3