Special Instructions for Model-Specific VME HardwareD-3014–001867Installing and Removing the Model 7411–KVAC/16 and Junction Box AssemblyThe Model 7411–K VAC/16 differs from most VME option boards due to a special airdam and junction, or J-box assembly. We recommend that you assemble the junctionbox, external ribbon cable, and 7411–K VAC/16 board before installing the board inyour computer. When removing or installing the controller board, you must useextra care because the air dam has no ejector handles to help you disengage theconnectors from the backplane.This section describes how to remove a 7411–K VAC/16 from your card cage, how toattach the J-box to your controller, and how to install the completed assembly intoyour card cage.Removing Model 7411–K Boards from the VME Card CageTo remove a Model 7411–K VAC/16, follow these instructions:1. Shut down your operating system before turning off your computer systempower. Refer to your expanding and/or maintaining manual(s) for instructions,if necessary.2. Disconnect any external devices from the J-box.3. Remove the securing screws and any washers on the top and bottom of theboard’s air dam, shown in Figure D–2.Removing thesecuring screws(Phillips or flat)Ribbon cable(s) to J-boxFigure D–2 Releasing Air Dam Screws
