AMD PCM-5820 ATX power control conn. CN23, CN24, ATX feature connector CN23 and power button CN

2.23 ATX power control conn. (CN23, CN24)

The PCM-5820 Series offers two serial ports: one RS-232 and one RS-232/422/485. These ports allow you to connect to any serial device (a mouse, printers, etc.) or communication network.

2.23.1ATX feature connector (CN23) and power button (CN 24))

The PCM-5822 can support an advanced power button if an ATX power supply is used. To enable the power button:

1.Take the specially designed ATX-to-PS/2 power cable

2.Connect the 3-pin plug of the cable to the CN23 (ATX feature connector).

3.Connect the power on/off button to pin 2,4 of CN 24. (A momentary contact type of button should be used.)

Important: Be sure that the ATX power supply can take at least a 10 mA load on the 5 V standby lead (5VSB). If not, you may have difficulty powering up your system.

30 PCM-5820 Series User's Manual