Installing The Intermodule Chassis Shields; Parts List; Procedure - HP E8400A C-Size VXI Mainframe User And Service Manual

Installing the Intermodule Chassis Shields

WARNING

Parts List

Procedure

36 Rack Mounting and Option Installation
Note
Once installed and adjusted, the door can be removed when necessary by
lifting the door off the hinge pins.
This procedure describes how to install chassis shields in the
HP E8400A mainframe. The chassis shield is HP's implementation of VXI
revision 1.4, specification B.7.3.4 that allows grounded shielding between
mainframe slots. The shield is used to isolate VXI modules that generate
electromagnetic interference (EMI) at excessive levels, or to protect VXI
measurement modules from noise sources.
Do not install intermodule chassis shields while the mainframe
is turned on or plugged into an AC power source.
The parts included in the HP E8400-80909 Chassis Shield Kit are shown in
Table 2-5.
Quantity
1
8*
* Includes 4 extra springs.
Note
Each mainframe slot has top and bottom chassis shield guides (Figure
2-13). Chassis shields should be installed on both sides of an instrument
generating interference/noise, or installed on both sides of a sensitive
instrument.
1. Insert grounding springs into the four sockets (two top, two bottom)
along the shield guides (Figure 2-13). Use a small flat blade
screwdriver to secure each spring under the socket tab.
Use the chassis shield to cover the vent holes inside the mainframe
when installing grounding springs in the top guide sockets. This
prevents the springs from falling into the mainframe if they are
accidently dropped.
Table 2-5. HP E8400-80909 Parts List.
Description
Chassis Shield
Grounding Spring
Part Number
E8400-00600
E8400-09101
Chapter 2