Keysight E8402A, E8404A C-Size Mainframes User and Service Guide 307Installing the Intermodule Chassis Shields Rack Mounting and Option InstallationInstalling the Intermodule Chassis ShieldsThis procedure describes how to install kit p/n E8400-80919 - IntermoduleChassis Shields in the Keysight E840xA mainframe. The chassis shield isKeysight’s implementation of VXI revision 1.4, specification B.7.3.4 that allowsgrounded shielding between mainframe slots. The shield is used to isolate VXImodules that generate electromagnetic interference (EMI) at excessive levels, orto protect VXI measurement modules from noise sources.Parts ListThe parts included in the E8400-80919 kit are shown in Table B-2.Procedure1 Insert grounding springs into the four sockets (two top, two bottom) along theshield guides. Use a small flat blade screwdriver to secure each spring underthe socket tab.Use the chassis shield to cover the vent holes inside the mainframe wheninstalling grounding springs in the top guide sockets. This prevents thesprings from falling into the mainframe if they are accidentally dropped.2 Align the chassis shield with the shield guides and gently slide the shield intothe mainframe. Be careful not to crimp the front grounding springs with theedge of the shield. Slide the shield in until it reaches the end of the shieldguide.Do not install intermodule chassis shields while themainframe is turned on or plugged into an AC powersource.Table B-2. E8400-80919 Parts List.Quantity Description Part Number1 Chassis Shield E8400-006008* Grounding Spring E8400-09101* Includes 4 extra springs.Each mainframe slot has top and bottom chassis shield guides.Chassis shields should be installed on both sides of an instrumentgenerating interference/noise, or installed on both sides of asensitive instrument.
