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TECHNICAL INFORMATION
How to connect the open-collector inputs of
the controller
Here below there are the typical connections of the
open collector input of TV551/701 Navigator to an
external system. Two cases are considered:
1. the customer supplies the 24 Vdc
2. the customer does not supply the 24 Vdc.
Please note that on the connector a 24 Vdc, 60
mA voltage, a GROUND signal and the open col-
lector pin are available.
Case 2 with relay utilisation
Case 1
Case 2 with transistor utilisation
77
87-900-945-01(G)
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