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4.2.7. CPU Fan and System Fan Connectors

Pin 3 and 4 are connected (monitored and managed) by SEMA controller.

Pin # Signal

1 GND

2 Fan Power (+12V)

3 Fan Sense

4 Fan Speed Control

4.2.8. Serial COM Port Connectors

Four internal Serial Ports (COM3-6)

Serial Port Functions

COM3 Supports RS-232 / RS-422 / RS-485,

5V/12V power support by BOM option

(default 5V).

SW10: Switch for mode selection of COM3

(default RS-232).

COM4 Supports RS-232 / RS-422 / RS-485,

5V/12V power support by BOM option

(default 5V).

SW11: Switch for mode selection of COM4

(default RS-232).

COM5 Supports RS-232 only, 5V/12V power

support by BOM option (default 5V).

COM6 Supports RS-232 only, 5V/12V power

support by BOM option (default 5V).

RS-232

Pin # Signal Pin # Signal

1 DCD 2 DSR

3 RxD 4 RTS

5 TxD 6 CTS

7 DTR 8 RI

9 GND 10 5V / 12V

SW10 SW11

COM3

COM6

COM4

COM5

CPU

Fan

System

Fan

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