Appendix 6: Wiring Diagrams
Bell Wiring
These terminals supply 700mA of current at 12VDC for commercial
installations and 11.1-12.6 VDC for residential installations (e.g.DSC SD-
15 WULF). To comply with NFPA 72 Temporal Three Pattern
requirements:
Program Section [013] Opt [8] ON.
The Bell output is supervised and power limited. If unused, connect a
1000Ω resistor across Bell+ and Bell- to prevent the panel from displaying
a trouble. See [*][2].
Note: Bell output
is current limited
by 2A PTC
Note: Steady,
Pulsed and Tem-
poral Three Pat-
tern alarms are
supported.
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