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UniMod GSM-3
Operation Manual
Bär Industrie-Elektronik GmbH
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Rathsbergstr. 23
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D-90411 Nürnberg
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Phone +49 911 970590
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Fax +49 911 9705950
12. Inserting the Interface Modules
When inserting the interface modules their component side must be at the left side and wired accord-
ing the picture. In the following sketch the components are at the left side.
RS232
20mA active 20mA pas.
RS485
M-Bus active
M-Bus pas.
Pin used, connected
Pin used, not connected
Pin not used
13. Terminal Block
Optional it is possible to activate the DTR input as control input for SMS.
