User`s manual

INSTALLATIONS
16 MI801 User’s Manual
J5: COM2/RS232 Serial Port
Signal Name
Pin #
Pin #
Signal Name
DCD, Data carrier detect
1
2
RXD, Receive data
TXD, Transmit data
3
4
DTR, Data terminal ready
GND, ground
5
6
DSR, Data set ready
RTS, Request to send
7
8
CTS, Clear to send
RI, Ring indicator
9
10
Not Used
J7: Power LED
The power LED indicates the status of the main power switch.
Pin #
Signal Name
1
Power LED
2
No connect
3
Ground
J8: System Function Connector
ATX Power ON Switch: Pins 1 and 2
This 2-pin connector is an “ATX Power Supply On/Off Switch” on the
system that connects to the power switch on the case. When pressed, the
power switch will force the system to power on. When pressed again, it
will force the system to power off.
Hard Disk Drive LED Connector: Pins 3 and 4
This connector connects to the hard drive activity LED on control panel.
This LED will flash when the HDD is being accessed.
Pin #
Signal Name
4
HDD Active
3
+3.3V