Appendix B
Operating Instructions ET-xx8 / MT-xx8
R. STAHL HMI Systems GmbH / OI_ET_MT-xx8_en_V_01_02_03.docx / 10.03.2021
Page 59 of 84
X32
– Barcode / card reader 10.4 V supply (X32-1), GND (X32-5):
Max. output voltage
U
o
=
10.4
VDC
Max. output current
I
o
=
391
mA
Max. output power
P
o
=
2.253
W
Trapezoidal output characteristics
Max. external capacitance
C
o
=
2.52
1.2
µF
Max. external inductance
L
o
=
20
100
µH
C
o
and L
o
pairs directly above / underneath each other may be used.
X32
– Barcode / card reader 5.36 V supply (X32-2), GND (X32-5):
Max. output voltage
U
o
=
5.36
VDC
Max. output current
I
o
=
420
mA
Max. output power
P
o
=
1.213
W
Trapezoidal output characteristics
Max. external capacitance
C
o
=
65
45
µF
Max. external inductance
L
o
=
1
2
µH
C
o
and L
o
pairs directly above / underneath each other may be used.
X32
– Barcode / card reader data line TXD (X32-3), RXD (X32-4) per circuit, GND (X32-5):
Max. output voltage
U
o
=
between RxD and GND or TxD and GND
±5.35
VDC
between RxD and TxD
±10.70
VDC
Effective internal capacitance
C
i
=
negligible
Effective internal inductance
L
i
=
negligible
Max. output current
I
o
=
16
mA
Max. output power
P
o
=
0.022
W
Max. input voltage
U
i
=
±12.5
VDC
Trapezoidal output characteristics
Max. external capacitance
C
o
=
2.23
2.23
µF
Max. external inductance
L
o
=
1
20
µH
C
o
and L
o
pairs directly above / underneath each other may be used.
The stated external capacitances and inductances were calculated for the maximum
voltage of 10.7 V.
If only one of the two signals, RxD or TxD, are connected, the maximum voltage to be used for
calculations is reduced to 5.35 V. The following values are permissible:
Max. external capacitance
C
o
=
65
45
µF
Max. external inductance
L
o
=
1
2
µH
