Site Requirements; Preventing Electrostatic Discharge Damage; Environmental Requirements - Cisco 7600-SIP-400 - SPA Interface Processor 400 Installation Manual

Site Requirements

Site Requirements
This section provides site power requirements for the Cisco 7600 series routers. You should verify the
site power prior to installing the router. Power requirements vary for each router; ensure that you verify
the site power for the type of router you are installing.
For EMI recommendations, refer to the Site Preparation and Safety Guide.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are
improperly handled, results in complete or intermittent failures. Port adapters and processor modules
consist of printed circuit boards that are fixed in metal carriers. Electromagnetic interference (EMI)
shielding and connectors are integral components of the carrier. Although the metal carrier helps to
protect the board from ESD, use a preventive antistatic strap during handling.
Following are guidelines for preventing ESD damage:
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For safety, periodically check the resistance value of the antistatic strap. The measurement should be
Caution
between 1 and 10 megohm (Mohm).

Environmental Requirements

Insure adequate spacing between racks using the information in
obstructions, including dust and foreign conductive material, and away from the exhaust ports of other
equipment.
Cisco 7600 Series Router Installation Guide
2-4
Always use an ESD wrist or ankle strap and ensure that it makes good skin contact.
Connect the equipment end of the strap to an unfinished chassis surface.
When installing a component, use any available ejector levers or captive installation screws
toproperly seat the bus connectors in the backplane or midplane. These devices prevent
accidentalremoval, provide proper grounding for the system, and help to ensure that bus connectors
areproperly seated.
When removing a component, use any available ejector levers or captive installation screws to
release the bus connectors from the backplane or midplane.
Handle carriers by available handles or edges only; avoid touching the printed circuit boards or
connectors.
Place a removed component board-side-up on an antistatic surface or in a static shielding container.
If you plan to return the component to the factory, immediately place it in a static shielding
container.
Avoid contact between the printed circuit boards and clothing. The wrist strap only protects
components from ESD voltages on the body; ESD voltages on clothing can still cause damage.
Never attempt to remove the printed circuit board from the metal carrier.
Chapter 2 Preparing for Installation
Table 2-2. Keep all of the vents clear of
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