Appendix B: Special Configuration Options

This appendix contains information for configuring your IntelliFrame Mainframe for specific situations not documented earlier in this manual. These special configuration options require you to disassemble parts of the mainframe to access jumpers or circuit boards. Refer to Maintenance for detailed information on the assembly and disassembly procedures. You may also need to refer to the exploded views in Replaceable Parts.

The information in this section is intended for use by qualified service personnel. Read the General Safety Summary and Service Safety Summary at the front of this manual and the static precautions on page 8±1 before attempting any procedures in this appendix. Refer to the Operating Basics chapter for information on the location of controls, indicators, and connectors used with the mainframe.

CAUTION. To avoid damage from high currents on the backplane, always power off the mainframe and disconnect the power cord before performing any of the configuration procedures for the mainframe described in this appendix.

Remote Power Switch Configuration

You can control the power-on function of the mainframe by the front panel On/Standby switch and from a remote momentary switch through the connections of the 25-pin rear panel connector. If you connect a remote switch to pins 5 and 18 (return side) of the 25-pin connector, the remote switch and the front panel On/Standby switch control the power-on functions of the mainframe.

You can also disable the front panel switch and control the power-on functions from the remote switch only. The backplane has two connectors that control the power-on functions. If the front panel switch is connected to the backplane at J22, the switch controls the power-on functions. If the switch is connected to J23, the front panel switch is disabled, however, the light still illuminates when the mainframe is powered on. To configure the mainframe to disable the front panel On/Standby switch, perform the following steps:

1.Disconnect the power cord from the mainframe.

2.Remove the cover from the mainframe.

3.Refer to Figure B±1 and locate the two connectors at the top of the back- plane.

VX1410A & VX1420A IntelliFrame Mainframe Instruction Manual

B±1