2-11
Hardware Setup
Serial Port Connector: COM1 & COM2
The mainboard offers one 9-pin male DIN connector COM A, and one optional
serial header COM2. Both are 16550A high speed communication ports that send/
receive/ 16 bytes FIFOs. You can attach a serial mouse or other serial device directly
to them.
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
9-Pin Male DIN Connector
COM1
1 2 3 4 5
6 7 8 9
USB Connectors
The mainboard provides an OHCI (Open Host Controller Interface) Universal
Serial Bus root for attaching USB devices such as keyboard, mouse or other USB-
compatible devices. You can plug the USB device directly into the connector.
USB Ports
1 2 3 4
5 6 7 8
PIN
SIGNAL
DESCRIPTION
1
VCC
+5V
2
-Data 0
Negative Data Channel 0
3
+Data0
Positive Data Channel 0
4
GND
Ground
5
VCC
+5V
6
-Data 1
Negative Data Channel 1
7
+Data 1
Positive Data Channel 1
8
GND
Ground
USB Port Description
COM2
1
9
2
10
Summary of Contents for Midas 915GM
Page 1: ...i MS 7177 v2 X Micro ATX Mainboard 915GM6 PM6 GVM6 Series G52 M7177X1 ...
Page 5: ...v WEEE Statement ...
Page 6: ...vi ...
Page 7: ...vii ...
Page 92: ...5 5 Introduction to Realtek ALC 655 2 3 4 5 6 ...