CyberResearch CPEX P4-24-X - Manual (Page 79)

CyberResearch
®
CPU Cards CPEX Series
CyberResearch, Inc. 67
25 Business Park Drive P: (203) 483-8815; F: (203) 483-9024
Branford, CT USA www.cyberresearch.com
Appendix D ATX Power Supply
The following notes show how to connect ATX Power Supply to the backplanes and
/ or the ISBC card.
1. Using ATX Power Switch
1. Disconnect the AC cord of the Power Supply from the AC source to prevent
sudden electric surge to the board.
2. Connect the ATX power button switch to the PW_SW (power button). And connect
the power cable from Backplane to ATXCTL connector of CPU card.
3. To turn on the system press the button once. To turn off the power supply press
the ATX power switch button for about 4 seconds.
2. Using AT Power Switch
You can also control ATX power supply through the PS ON connector of backplane.
1. Install CPEX series on the backplane.
2. Connect the ON/OFF (ordinary one) switch to Pin 2 (PS ON) and Pin 3 (GND) of
connector CN2.
3. You may now turn the power ON/OFF by the power switch.