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Chapter 2
Preparing for Installation
The DS3 ports are not intended to be connected to cables that run outside the building where it is
Warning
installed. For any connections outside the building, the DS3 ports must be connected to a network
termination unit (NTU). NTU devices should comply with appropriate national safety standards such
as UL 1950, CSA 950, EN 60950, IEC 950, and AS 3260.
This product requires short-circuit (overcurrent) protection, to be provided as part of the building
Warning
installation. Install only in accordance with national and local wiring regulations.
High-performance devices on this card can get hot during operation. To remove the card, hold it by
Warning
the faceplate and bottom edge. Allow the card to cool before touching any other part of it or before
placing it in an antistatic bag.
Warning
Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed
circuitry could constitute an energy hazard.
2.1.3 Preventing Electrostatic Discharge Damage
Proper electrostatic discharge (ESD) protection is required whenever you handle Cisco equipment. ESD
damage, which can occur when electronic cards or components are improperly handled, results in
complete or intermittent failures. Use an antistatic strap during handling.
Follow these guidelines to prevent ESD damage:
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Caution
Periodically check the resistance value of the antistatic strap. Ensure that the measurement is between 1
and 10 megohms.
OL-2365-02
Always use an ESD ankle or wrist strap and ensure that it makes good skin contact.
Connect the equipment end of the strap to the ESD jack on the top of the chassis at the right
front corner.
When you install a component, use available ejector levers or captive installation screws to properly
seat the bus connectors in the backplane or midplane. These devices prevent accidental removal,
provide proper grounding for the system, and help to ensure that bus connectors are properly seated.
When you remove a component, use available ejector levers or captive installation screws to release
the bus connectors from the backplane or midplane.
Handle the I/O module by the edges only; avoid touching the printed circuit boards or connectors.
Avoid touching the printed circuit boards or connectors on the NI-2 cards or line cards.
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 protects components
from ESD voltages on the body only; ESD voltages on clothing can still cause damage.
Safety Requirements
Cisco 6260 Hardware Installation Guide
2-9
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