Hardware Information

PS Connection for Hard Disk

The power supply of the 3.5” hard disk is effected via this connection.

Pin No.

Designation

Description

Input / Output

 

 

 

 

1

P12V

+12 V

Output

 

 

 

 

2

GND

Ground

 

 

 

 

3

GND

Ground

 

 

 

 

4

P5V

+ 5V

Output

 

 

 

 

Connection for CPU Fan

The CPU fan is connected via this connection.

Pin No.

Designation

Description

Input / Output

 

 

 

 

1

GND

Ground

 

 

 

 

2

+12V

Switched power supply

Output

 

 

 

 

3

CPU FAN_CLK

Speed signal

Input

 

 

 

 

Connection for Device Fan

The device fan is connected via this connection.

Pin No.

Designation

Description

Input / Output

 

 

 

 

1

+12V

Switched power supply

Output

 

 

 

 

2

GND

Ground

 

 

 

 

Connection for Backup Battery

The battery for the standby supply to the CMOS RAM is connected to this connection. A 3.6 V lithium battery with a capacity of 750 mAh is used.

Pin No.

Designation

Description

Input / Output

 

 

 

 

1

+

Positive pole

Input

 

 

 

 

2

Negative pole

 

 

 

 

7-30

SIMATIC Box PC 620 Manual

A5E00131465-01

Page 162
Image 162
Siemens 620 PS Connection for Hard Disk, Connection for CPU Fan, Connection for Device Fan, Connection for Backup Battery