Siemens SIMATIC Box PC 840 Manual page 135

PS/2 Mouse Port, X22
You can connect an external PS/2 mouse to your SIMATIC Box PC 840.
The connector has the following pinout:
Figure 7-4 Connector Pinout for a PS/2 Mouse
Pin No.
1
2
3
4
5
6
PS/2 Keyboard with Trackball Port, X23
You can connect an external keyboard to your SIMATIC Box PC 840.
The connector has the following pinout:
Figure 7-5 Connector Pinout for an External Keyboard Connecting Cable
Pin-No.
1
2
3
4
5
6
SIMATIC Box PC 840 Manual
A5E00085984-04
6
4
View of socket connector
Designation Description
DAT Data line, mouse
Unassigned
GND Ground
+5V (fused)
CLK Clock line, mouse
- Unassigned
6
4
View onto the socket
Designation Description
DAT Data line, keyboard
Unassigned
GND Ground
P5VFK +5V ( fused)
CLK Clock line, keyboard
- Unassigned
5
3
2 1
5
3
2 1
Hardware Information
Input / Output
Input / Output
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Output
Input / Output
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Input / Output
Input/output
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Output
Input/output
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