Vega NB-11 / User Manual
8
Revision 03 – 08 October 2020
3 OPERATION
CONTACTS
The pulse counter allows to connect circuits with the following types of NO contacts:
- reed switch;
- mechanical pushbutton;
- open-collector output.
Equipment with NAMUR pulse output is not supported
Polarity effects only "open collector" circuits.
There are two security inputs on the board. The device monitors status changes on the
security inputs and when the security input triggers, the device is activated and sends an alarm
message to the network.
Circuit design of the pulse inputs
