Connectors and features, Power supply, Atx connector – Kontron COMe Ref. Carrier T2 User Manual
Page 29: 5connectors and features, 1 power supply, 1 atx connector
COM Express™ miniBaseboard Type 2
/ Connectors and Features
24
5
Connectors and Features
5.1 Power supply
5.1.1 ATX connector
The miniBaseboard's power supply follows the ATX specification and in default configuration the baseboard should be
supplied by connecting an ATX PSU with 20pin ATX and 4pin ATX_12V supply cable in correct orientation. The 4pin
ATX_12V connector mainly supplies power to the module over 0R resistor R669. The module is supplied with 5V
standby voltage over 0R resistor R670.
Pin
20pin ATX J58
Pin
20pin ATX J58
Pin
4pin ATX J59
1
+3.3VDC
11
+3.3VDC
1
GND
2
+3.3VDC
12
-12VDC
2
GND
3
GND
13
GND
3
+12VDC or
8.5-18V in single
supply mode
4
+5VDC
14
PS_ON
5
GND
15
GND
6
+5VDC
16
GND
4
+12VDC or
8.5-18V in single
supply mode
7
GND
17
GND
8
PWR_OK
18
-5VDC
9
+5VSB
19
+5VDC
10
+12VDC
20
+5VDC