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End of line monitoring is applicable to the Sounder Product. For this to func-
tion correctly, the resistor must be connected between the IN+ terminal and the
Sounder Negative Supply. A suitable Zener Barrier which can allow reverse
polarity monitoring to take place and a fire panel compatible with Intrinsically
Safe products must also be used.
If required, an external switch can be wired in series with the (1) and/or (2)
connections to give independent remote change over from Sounder
to Beacon.
This switch must conform to Intrinsically Safe installation (EN 60079-0:2012 +
A11:2013, EN 60079-11:2012, EN 50303:2000).