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IrDA Infrared Module Header: JIR1
The connector allows you to connect to IrDA Infrared module. You must configure the
setting through the BIOS setup to use the IR function. JIR1 is compliant with Intel
Front Panel I/O Connectivity Design Guide.
Serial Port Connector: JCOM1
The mainboard offers one 9-pin male DIN connector COM 1 (on the rear panel), and
one optional serial port JCOM1. 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.
Chassis Intrusion Switch Connector: JCI1
This connector is connected to a 2-pin chassis switch. If the chassis is opened, the
switch will be short. The system will record this status and show a warning mes-
sage on the screen. To clear the warning, you must enter the BIOS utility and clear the
record.
Pin Definition
6
5
Pin
1
2
3
2
1
4
JIR1
5
6
10 9
PIN
1
2
2
1
3
JCOM1
4
5
6
7
8
9
10
2
GND
1
CINTRU
JCI1
Hardware Setup
Signal
IRRX
IRTX
GND
VCC5
NC
NC
Pin Definition
SIGNAL DESCRIPTION
DCD
Data Carry Detect
SIN
Serial in or receive data
SOUT
Receive Data Transmit
DTR
Serial out or transmit data
GND
Data
DSR
Data Set Ready
RTS
Request To Send Ring
CTS
Clear To Send
RI
Indicate
X
X
®
2-19
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