Acrosser AR-B5890 - Manual (Page 14)

AR-B5890 User Manual
14
2.4.10 COM5 (RS-232/ RS-422/
RS-485 Serial Ports) 2.4.11 GPIO1 (Pin Header for
User-Defined GPIOs) 2.4.12 CPUFAN (CPU Fan
Connector)
PIN SIGNAL PIN SIGNAL
1 DCD 2 DSR(RX-)
3 RX(RX+) 4 RTS
5 TX 6 CTS(TX-)
7 DTR 8 RI(TX+)
9 GND 10 NC
PIN SIGNAL PIN SIGNAL
1 5V 2 GND
3 GPIO30 4 GPIO34
5 GPIO31 6 GPIO35
7 GPIO32 8 GPIO36
9 GPIO33 10 GPIO37
PIN SIGNAL
1 Fan speed data
2 12V
3 GND
2.4.13 SYSFAN1 (System Fan
Connector) 2.4.14 JP3 & JP5 (RTC (Real
Time Clock)) Reset 2.4.15 JP2 & JP4 & JP6 (Front
Side Bus Clock Strapping)
PIN SIGNAL
1 Fan speed data
2 12V
3 GND
STATUS SETTING
JP3
JP5
1-2 close
Clear CMOS &
RTC
JP3
JP5
NC
Keep CMOS &
RTC
FSB SETTING
JP2 1-2 close
JP4 1-2 close Auto
JP6 1-2 close
2.4.7 SYSFAN3 (System Fan
Connector) 2.4.8 JP18 & JP20 (Select
COM5 RS232/422/485) 2.4.9 CN3 & CN4 (Pin Header
for 4USB Ports)
PIN SIGNAL
1 GND
2 12V
3 3.3V
JP18
JP20
STATUS SETTING
JP18 1-3,2-4
JP20 1-3,2-4
RS-232
JP18 3-5, 4-6
JP20 3-5, 4-6
RS-422
JP18 3-5, 4-6
JP20 N/A
RS-485
PIN SIGNAL PIN SIGNAL
1 5V 2 5V
3 -USB0 4 -USB1
5 +USB0 6 +USB1
7 GND 8 GND
9 GND 10 GND