Acrosser AR-B6051 - Manual (Page 27)

4.4 Watchdog Timer
If you set a watchdog timer, you can use it to reset the system when system hangs up due to
hardware issue. After you set the watchdog timer, the software shall re-set the timer to re-start a
new cycle before it time-out. Please refer to Chapter 6 Software Installation and Programming
Guide for how to set the watchdog timer.
4.5 RS-232 Ports
The COM1/COM2/COM3/COM4 are connected through a cable(pin header). Users need to
plug into RS-232 or RS-422/485 connector. For RS-422/485, please refer to SW1, SW2
setting. The following diagram is their pin definition and signal.
COM1~ COM4: For RS-232 Function
Pin SIGNAL
1 DSR
2 DCD
3 RTS
4 SIN
5 CTS
6 SOUT
7 RI
8 DTR
9 NC
10 GND
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