19
Note: Network Access Controller system design should consider the fuse
partitioning and load limitations specified in Appendix B: Output fusing and user
current limits on page 34.
Siren
Connect the OUT S+ and OUT S– terminals to an 8 Ω siren speaker or two 8Ω
siren speakers in parallel. Alternatively, connect a device requiring 12VDC
power.
The OUT S+ terminal is always powered. The OUT S- terminal is switched
according to the Siren SW settings.
A 1K 1/4 watt resistor (supplied) should be connected across the OUT S+ and
OUT S– terminals:
a) At the load side when driving digital inputs or other light loads.
b) At the terminals when no device is connected.
Note: Network Access Controller system design should consider the fuse
partitioning and load limitations specified in Appendix B: Output fusing and user
current limits on page 34.
Warning: The siren type must be configured correctly in CTPlus. Specifying a
siren type of DC Volts when there is an 8 Ω siren connected to the Network
Access Controller may damage the siren.
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