AXIOMTEK CEB94011, Руководство пользователя

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CEB94011 COM Express
TM
Type 6 Development Baseboard
Board and Pin Assignments 23
2.5.17 COM1 and COM2 Connectors (CN20 and CN21)
The board has two RS-232/422/485 ports for user development.
CN20 (COM1)
CN21 (COM2)
2.5.18 Digital I/O Port Connector (CN22)
The board has an 8-channel (4 inputs and 4 outputs) digital I/O that meets requirements
for a system customary automation control. The digital I/O can be configured to control
cash drawers and sense warning signals from an Uninterrupted Power System (UPS), or
perform store security control. You may use software programming to control these
digital signals.
Pin RS-232 RS-422 RS-485
1 DCD TX- D-
2 RX TX+ D+
3 TX RX+ No use
4 DTR RX- No use
5 GND GND GND
6 DSR No use No use
7 RTS No use No use
8 CTS No use No use
9 RI No use No use
10 NC No use No use
Pin Signal Pin Signal
1 GPI0 2 GPO0
3 GPI1 4 GPO1
5 GPI2 6 GPO2
7 GPI3 8 GPO3
9 GND 10 GND