7
Connection into the unit must be via a suitably rated Zener Barrier/Galvanic
Isolator, the connections for combined operation are below.
Independant Sounder/Beacon Alarm
When the Sounder and Beacon are required to operate independantly, this is
done by switching the negative connections as shown in the table on page 6.
There are a number of ways for this to be accomplished through the suitable
barriers, a number of methods are shown below:
For this application, a barrier with 2 Diode return paths is required as shown in
the diagram below:
Switching between return paths will enable either Sounder or Beacon, alter-
nately, both the paths could be actived to power both sections together.
