Advantech PPC-6170A Manual de usuario Pagina 47

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39 PPC-6150A/6170A User Manual
Chapter 3 Jumper Configuration
COM2:
1. The operation mode can be either RS232/422/485, selected by BIOS. (For
details, please refer to "232/422/485 COM PORT" in "BIOS Configuration"
chapter.
2. This port is designed with isolation function (1000 V
DC
).
DIO:
1. Operation voltage 5 V+/-10%.
2. 8 bit parallel input and output port.
3. Control signal is SMBUS.
External COM PORT & DIO PIN definition:
Ports Functions
Pin RS232 RS422 RS485 DIO
1 DCD 422_TXD- 485_Data- GND
2 RXD 422_TXD+ 485_Data+ GPIO4
3 TXD 422_RXD+ GPIO0
4 DTR 422_RXD- GPIO5
5 GND GND GPIO1
6 DSR GPIO6
7 RTS GPIO2
8 CTS GPIO7
9 RIC GPIO3
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