To disconnect the 5 V standby voltage from the whole system, use jumper JP9.
Table 7
JP9 - ATX 5V Standby Connection
Pin
Description
1-2
5V standby connected (default)
2-3
5V standby disconnected
Table 8
X50 - ATX Power Pinout
Pin Signal
Description
1
+3.3V
Power supply +3.3 VDC
2
+3.3V
Power supply +3.3 VDC
3
GND
Power ground
4
+5V
Power supply +5 VDC
5
GND
Power ground
6
+5V
Power supply +5 VDC
7
GND
Power ground
8
PWR_OK
Power Ok
9
5V_SB
Standby power supply +5 VDC
10
+12V
Power supply +12 VDC
11
+12V
Power supply +12 VDC
12
+3.3V
Power supply +3.3 VDC
Connector Type
X50: Standard 24-pin ATX connector
JP9: 2.54 mm, 2-pin jumper
Copyright © 2022 congatec AG
Pin Signal
Description
13
+3.3V
Power supply +3.3 VDC
14
-12V
Power supply -12 VDC
15
GND
Power ground
16
PS_ON# Power Supply On (active low). Short this pin to
GND to switch power supply ON; disconnect
from GND to switch OFF.
17
GND
Power ground
18
GND
Power ground
19
GND
Power ground
20
N.C
21
+5V
Power supply +5 VDC
22
+5V
Power supply +5 VDC
23
+5V
Power supply +5 VDC
24
GND
Power ground
HEVAm100
JP9
1
2
3
X50
22/54
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