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30 PCM-5820 Series User's Manual
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.
2.23.1 ATX 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.