Alix Connector Pinouts - PC Engines ALIX.2 Series Manual

ALIX connector pinouts

References refer to ALIX.2 / ALIX.3.
J5/J3
The standard PC pinout is used. To connect to a PC, use a null modem or "Laplink" cable. Due to
limitations of the AMD CS5536 companion chip, handshake signals are not available.
1 DCD
2 RXD#
3 TXD#
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
J12 / J4
As an option, the board can be configured with a 4 or 5 pin header with 3.3V CMOS signal levels
instead of the normal RS-232 serial port.
1 V3
2 TXD
3 RXD
4 GND
5 VCC
J3/J1
RJ45 connectors with integrated magnetics are used. This port implements a passive power over
Ethernet scheme over the two unused pairs. Do not exceed 20V as the TVS protection diode may
start clamping above this voltage.
1 TX+
2 TX-
3 RX+
4 VIN
5 VIN
6 RX-
7 GND
8 GND
J1, J2 / -
RJ45 connectors with integrated magnetics are used. These ports do NOT support power over
Ethernet. Same pinout as above, but pins 4,5 and 7,8 are not connected.
ALIX system board
COM1 serial port
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)
COM1 serial port (build option)
3.3V supply
transmit data (output)
receive data (input)
ground
5V supply
Ethernet port 1
transmit positive
transmit negative
receive positive
power supply (nominal 7 to 20V)
"
receive negative
power return
"
Ethernet ports 2, 3
- not available on CS5536
- driven active
- not available on CS5536
- driven active
- not available on CS5536
- not available on CS5536
13 1/15/2008