Fig. 7 Ps/2 Mouse And Keyboard; Table 4 Socket External Wiring (X102) Pin Assignment; Table 5 Ps/2 Interface Mouse Pin Assignment; Table 6 Ps/2 Interface Keyboard Pin Assignment - Beckhoff C5240 Manual

Table 4: Socket external wiring (X102) pin assignment
Pin Signal
1 P-S
2 PC-ON
3 +24 V
3.2.2 PS/2
The industrial PC has two PS/2 interfaces (X103, X104). The upper interface (X104) allows the connection of
a PS/2 mouse, the lower interface (X103) allows the connection of a PS/2 keyboard. The connection is made
via standard MiniDIN connectors.
B6 B5
X104
B2 B1
A6 A5
X103
A2 A1
Fig. 7: PS/2 mouse and keyboard
Table 5: PS/2 interface mouse pin assignment
Pin
B1
B2
B3
B4
B5
B6
Table 6: PS/2 interface keyboard pin assignment
Pin
A1
A2
A3
A4
A5
A6
C5240
Description
Output power status, minus is the negative pole of the power supply (X101)
Input PC-ON
Supply voltage and positive pole for PC-ON
Name
MDAT
N/C
GND
(S)VCC
MCLK
N/C
Name
KDAT
MDAT
GND
(S)VCC
KCLK
MCLK
Version: 3.0
Product overview
Description
Mouse Data
Reserved
Ground
5 V supply voltage
Mouse Clock
Reserved
Description
Keyboard data
Mouse Data
Ground
5 V supply voltage
Keyboard Clock
Mouse Clock
13