Cpu Fan Power Connector; Installing The Xvme-655 Into A Backplane - Xycom XVME-655 Manual

CPU Fan Power Connector

The fan +12 V and +5 V supplies are protected with a polyswitch. This device will open
up if +12 V or +5 V is shorted to GND. Once the shorting condition is removed, the
polyswitch will allow current flow to resume.

Installing the XVME-655 into a Backplane

This section provides the information necessary to install the XVME-655 into the
VMEbus backplane.
The XVME-655 is a double-high, single-board VMEbus module that occupies two
VMEbus slots.
Xycom modules are designed to comply with all physical and electrical
VMEbus backplane specifications.
Do not install the XVME-655 on a VMEbus system without a P2
backplane.
Never install or remove any boards before turning off the power to the
bus and all related external power supplies.
1. Disconnect all power supplies to the backplane and card cage, and disconnect the
power cable.
2. Make sure backplane connectors P1 and P2 are available.
3. Verify all jumper settings.
4. Verify that the card cage slot that will hold the XVME-655 is clear and accessible, as
well as the card cage slot to the right of the board.
5. Install the XVME-655 into the card cage by centering the unit on the plastic guides
in the slots (P1 connector facing up). Push the board slowly toward the rear of the
chassis until the P1 and P2 connectors engage. The board should slide freely in the
plastic guides.
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Pin Signal
1 +12V (fused)
2 +5V (fused)
3 GND
Note
Caution
Warning
Chapter 2 – Installation
2-11