Service manual

Installing Mainframe Options 41Chapter 2
Installing Backplane Connector Shields
This section describes how to install backplane connector shields
(E8408-80900) in the E8408A mainframe. The shields are the
implementation of VXI revision 2.0, specification B.7.2.3 which ensures
compliance with RFI levels specified in standards EN55011 and CISPR11.
A number of VXI instruments require shields for compliance with EN55011
and CISPR11. Refer to the instrument documentation to determine if shields
are required.
WARNING Do not install backplane connector shields while the mainframe
is turned on or plugged into an AC power source.
Parts List The parts included in the E8408-80900 kit are shown in Table 2-5.
Figure 2-21. Installing the Grounding Springs and Chassis Shield.
Use a Small Screw Driver
to Secure Spring Under
SocketTab
Shield
VXI
Module
Guide
Chassis
Grounding Spring
Socket
Guide
Table 2-5. E8408-80900 Parts List.
Quantity Description Part Number
18* Pan Head Screw - 4-20 x .25 0624-0702
8 Backplane Connector Shield E1400-80601
* Includes two extra screws