Cisco uBR10012 Universal Broadband Router UBR10-FAN-CAB= Specifications download pdf (Page 8)

Cisco uBR10012 Universal Broadband Router Fan Assembly Module

OL-5093-01

Electrical Equipment Guidelines

Follow these basic guidelines when working with any electrical equipment:

• Before beginning any procedures requiring access to the chassis interior, locate the emergency

power-off switch for the room in which you are working.

• Disconnect all power and external cables before moving a chassis.

• Do not work alone when potentially hazardous conditions exist.

• Never assume that power has been disconnected from a circuit; always check.

• Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.

• Carefully examine your work area for possible hazards such as moist floors, ungrounded power

extension cables, and missing safety grounds.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) damage, which occurs when electronic cards or components are

improperly handled, can result in complete or intermittent failures. The AC-input power shelf and its AC

power modules contain a printed circuit card that is fixed in a metal carrier. Electromagnetic interference

(EMI) shielding and connectors are integral components of the carrier. Although the metal carrier helps

to protect the cards from ESD, use an anti-static strap each time you handle the modules.

Following are guidelines for preventing ESD damage:

• Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact.

Before removing a card from the chassis, connect the equipment end of the strap to a bare metal,

unpainted surface on the chassis or rack-mount.

• Handle components by the carrier edges only; avoid touching the card components or any connector

pins.

• When removing a module, place it on an anti-static surface or in a static-shielding bag. If the module

will be returned to the factory, immediately place it in a static-shielding bag.

• Avoid contact between the modules and clothing. The wrist strap protects the card from ESD

voltages on the body only; ESD voltages on clothing can still cause damage.

Caution For safety, periodically check the resistance value of the anti-static strap. The measurement should

be between 1 and 10 megohms.

1 2 3 4 5 6 7 8 9 ... 18

No comments

Cisco uBR10012 Universal Broadband Router UBR10-FAN-CAB= Specifications Page 8