Siemens Cerberus Dati Technical Manual page 17

Cmx input output multiplexing system
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Voltage - min
Voltage - max
Maximum internal resistance
Current - min
The internal resistance can be used to evaluate the current that will flow in the external circuit. The value must be
higher than the minimum current value stated in Table 4.4 to let the CMX detect the input status change. Moreover, the
external device must be able to withstand that current without damage.
E1110A.DOC
Feature
12
28
2.2
6
12
Table 4.4 - Input electrical characteristics
Data and design subject to change without notice. Supply subject to availability
© Copyright by CERBERUS AG, CH-8708 Männedorf, Switzerland 1995
Value
Unit
V
V
kOhm
@12 V
mA
@28 V
mA
THE CMX-24I BOARD
01.96
17[51]

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