Required Parts
The following parts are included in each jackscrew replacement kit. Because the holes in the EIP are threaded, you need only two lock washers and two jackscrews for each port. Discard the extra flat washers and hex nuts included in the kit.
■2 jackscrews
■2 lockwashers
■4 flat washers (discard)
■2 hex nuts (discard)
Preventing Electrostatic Discharge (ESD) Damage
Electrostatic discharge (ESD) damage, which occurs when electronic cards or components are improperly handled, can result in complete or intermittent failures. The EIP comprises a printed circuit board that is fixed in a metal carrier. Electromagnetic interference (EMI) shielding, connectors, and a handle are integral components of the carrier. Although the metal carrier helps to protect the board from ESD, you can still damage the board by touching the connector pins. Always use a preventive antistatic strap whenever working on the EIP, and avoid touching the connector pins.
Following are guidelines for preventing ESD damage:
■Always use an ESD wrist strap or ankle strap and ensure that it makes good skin contact.
■Connect the equipment end of the strap to one of the captive installation screws on an installed power supply (see Figure 4).
■Handle carriers by the handles and carrier edges only; avoid touching the board or any connector pins.
■Avoid contact between the EIP and clothing. The wrist strap only protects the EIP from ESD voltages on the body; ESD voltages on clothing can still cause damage.
1
0
I
O
H1362a
Figure 4 Placement of ESD Wrist Strap
Jackscrew Installation Instructions (for EIP Ports) 5
