VIPA SSM-BG41 - Fig. 3-3: Characteristic Curves of the Current Sources in Relation to the Applied Voltage

Functional description and allocation of terminal pins Manual BG41/BG42/BG43
3-6 Rev. 99/49
3.2.1.3 Voltage supply for a 20mA current loop
If the 20mA current loop module or the 20mA current loop combination module are operated as the
active part of a current loop, they can be supplied internally or externally from the 20mA current
sources found on the module:
•= internally through the back plane bus (base plug X1 or X2)
•= externally through the 25-pole SubD socket
The current sources are to be supplied with 10 to 36 V (typically 24 V) and produce the following
characteristic curves:
Fig. 3-3:Characteristic curves of the current sources in relation to the applied voltage