PC Engines ALIX.1C Manual page 12

J7 COM1 serial port
The standard PC pinout is used. To connect to a PC, use a null modem or "Laplink" cable.
1 DCD
2 RXD#
3 TXD#
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
J9 COM2 serial port
10 pin header. (DB9 pin numbers in parantheses). Use an off-the-shelf 10 pin to DB9 cable. Please
note that there are two different configurations for these cables...
1 (1) DCD
3 (2) RXD#
5 (3) TXD#
7 (4) DTR
9 (5) GND
2 (6) DSR
4 (7) RTS
6 (8) CTS
8 (9) RI
10 nc
J8 USB jack
Dual USB 2.0 connections:
1 VCC
2 DATA4-
3 DATA4+
4 GND
5 VCC
6 DATA3-
7 DATA3+
8 GND
J12 USB header
Dual USB 2.0 connections:
1 VCC
2 VCC
3 DATA1-
4 DATA2-
5 DATA1+
6 DATA2+
7 GND
8 GND
9 key
ALIX system board
data carrier detect (input)
receive data (input)
transmit data (output)
data terminal ready (output)
ground
data set ready (input)
ready to send (output)
clear to send (input)
ring indicator (input)
data carrier detect (input)
receive data (input)
transmit data (output)
data terminal ready (output)
ground
data set ready (input)
ready to send (output)
clear to send (input)
ring indicator (input)
no connect
switched +5V supply
negative data
positive data
ground
switched +5V supply
negative data
positive data
ground
switched +5V supply
"
negative data
negative data
positive data
positive data
ground
ground
key pin (missing)
12 2/21/2008