Chapter 2
2-16
1 2
COM2
9
Fan Power Connectors: FANCPU1/FANSYS1
The FANCPU1(processor fan) and FANSYS1 (system fan)
support system cooling fan with +12V. It supports four/three-pin head
connector. When connecting the wire to the connectors, always take
note that the red wire is the positive and should be connected to the
+12V, the black wire is Ground and should be connected to GND. If the
mainboard has a System Hardware Monitor chipset on-board, you
must use a specially designed fan with speed sensor to take advantage
of the CPU fan control.
FANSYS1
FANCPU1
Sensor
+12V
GND
Sensor
+12V
GND
Serial Port Connector: COM2
The mainboard offers one serial port COM2. It is 16550A high speed
communication ports that senda/receivea/ 16 bytes FIFOs. You can at-
tach a serial mouse or other serial device directly to it.
PIN
SIGNAL
DESCRIPTION
1
DCD
Data Carry Detect
2
SIN
Serial In or Receive Data
3
SOUT
Serial Out or Transmit Data
4
DTR
Data Terminal Ready)
5
GND
Ground
6
DSR
Data Set Ready
7
RTS
Request To Send
8
CTS
Clear To Send
9
RI
Ring Indicate
Pin Definition
Содержание Midas 400
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