30 PCM-5820 Series User's Manual2.23 ATX power control conn. (CN23, CN24)The PCM-5820 Series offers two serial ports: one RS-232 and oneRS-232/422/485. These ports allow you to connect to any serialdevice (a mouse, printers, etc.) or communication network.2.23.1 ATX feature connector (CN23) and powerbutton (CN 24))The PCM-5822 can support an advanced power button if an ATXpower supply is used. To enable the power button:1. Take the specially designed ATX-to-PS/2 power cable2. Connect the 3-pin plug of the cable to the CN23 (ATX featureconnector).3. Connect the power on/off button to pin 2,4 of CN 24. (Amomentary contact type of button should be used.)Important: Be sure that the ATX power supply can take at least a10 mA load on the 5 V standby lead (5VSB). If not, you may havedifficulty powering up your system.
