WAVENET RADIO NETWORK 3065
Page 23
In the LDB or LSM user interface, an open contact has a value of 0 and a closed
contact has a value of 1. In the diagram above, for example, if contact 1 is used to
monitor a door, an opening door will constitute an event: ‘Input1 transition from 1 to
0’, if contact 1 is closed when the door is closed and open when the door is open.
Internally, the output takes the form of a transistor in open-collector switching. The
white and brown cables are available for connecting to external devices (e.g.
buzzers). The following applies: Out = brown, ground = white.
Connection example for possible output circuit:
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