Operating Instructions KB2 Keyboards
Appendix B
Page 44 of 68
R. STAHL HMI Systems GmbH / OI_Keyboard_KB2_en_V_01_00_02.docx / 07.03.2022
17.1.2
For HSG enclosures with "U3" device version
Only version UB03-USB is available for KB2 keyboards with UB03. Version
UB03-RS-422 is not possible !
Only representation of the relevant data.
USB version
Terminal Pin
Signal
typical colour coding
Connection / function
USB 2.0 cable
Profinet cable
X1
1
VBUS
Red
Orange
+5 VDC power supply
2
USB D-
White
White
Data conductor -
3
USB D+
Green
Blue
Data con
4
GND
Black
Yellow
0 VDC power supply
X2
Not in use / do not allocate !
Device power supplyX1 pins 1 and 4:
Nominal voltage
=
5 … 30
VDC
Nominal current
=
max. 1
A
Nominal power
≤
30
W
Max. input voltage
U
m
=
250
VAC
Data cable X1 pins 2 and 3:
Nominal voltage
=
5 VDC
Max. input voltage Um
=
250 VAC