Siemens Simatic 620 - Manual (Page 157)

Hardware Information
7-25
SIMATIC Box PC 620 Manual
A5E00131465-01
DC Port of the Power Supply Unit 85W
The power supply unit has a connector (X2) through which all the signals on the
DC side are connected with the motherboard.
Pin
No.
Row A Description Pin
No.
Row B Description
1 PS_PWROK Power Good Signal 1 PS_PWROK Power Good Signal
2 TTY_VCC Potential–free VCC (15V ±
3V) for TTY port
2 TTY_VCC Potential–free VCC (15V ±
3V) for TTY port
3 TTY_GND TTY_GND 3 TTY_GND TTY_GND
4 PS_NAU_N Power failure early warning
alarm
4 PS_NAU_N Power failure early warning
alarm
5 GND GND 5 GND GND
6 P12V +12V 6 P12V +12V
7 V_DC for processor module 7 V_DC for processor module
8 N12V -12V 8 N12V -12V
9 GND GND 9 GND GND
10 GND GND 10 GND GND
11 P3V3 +3.3V 11 P3V3 +3.3V
12 P3V3 +3.3V 12 P3V3 +3.3V
13 GND GND 13 GND GND
14 GND GND 14 GND GND
15 GND GND 15 GND GND
16 GND GND 16 GND GND
17 P5V +5V 17 P5V +5V
18 P5V +5V 18 P5V +5V
19 P5V +5V 19 P5V +5V
20 P5V +5V 20 P5V +5V