Instruction Manual

ECM-KA User’s Manual
26 ECM-KA User’s Manual
2.4.9 System fan connector (SYS_FAN1)
Signal
PIN
GND
1
+12V
2
EC_TACH1
3
FAN_PWM1
4
2.4.10 COM 1 RS-422-485 mode (J422/1)
Signal
PIN
PIN
Signal
485TX.RX-/422TX-
2
1
422RX+
485TX.RX+/422TX+
4
3
422RX-
5V
6
5
GND
Note:
J422/485 is available after modify the mode of COM1
in BIOS setting