AXIOMTEK MANO500 Series, User Manual

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MANO500 Mini ITX Motherboard
22 Board and Pin Assignments
2.4.18 Power Input Connectors (ATX1 and ATX2)
Steady and sufficient power can be supplied to all components on the board by
connecting power connector. Please make sure all components and devices are
properly installed before connecting the power connector.
External power supply plug fits into this connector in only one orientation. Properly press
down power supply plug until it completely and firmly fits into this connector. Loose
connection may cause system instability.
ATX1 is a 4-pin connector for DC +12V power input.
2 4
1 3
ATX2 is a 24-pin connector for DC power input.
2.4.19 COM Headers (COM3~COM6)
The motherboard comes with 5x2-pin p=2.00mm headers for COM3~COM6 serial port
interfaces.
Pin Signal
1 GND
2 GND
3 + 12V IN
4 + 12V IN
Pin Signal Pin Signal
1 3.3V 13 3.3V
2 3.3V 14 -12V
3 GND 15 GND
4 +5V 16 PS_ON
5 GND 17 GND
6 +5V 18 GND
7 GND 19 GND
8 PWR OK 20 -5V
9 5VSB 21 +5V
10 +12V 22 +5V
11 +12V 23 +5V
12 3.3V 24 GND
Pin Signal Pin Signal
1 DCD 2 DSR
3 RXD 4 RTS
5 TXD 6 CTS
7 DTR 8 RI
9 GND 10 N/C