Appendix 6: Wiring diagrams
To comply with NFPA 72 Temporal Three Pattern requirements, program Section [013] Opt [8] ON.
The Bell output is supervised and power limited. Connect a 1000 Ω resistor across Bell+ and Bell- to prevent the panel from
displaying a trouble. See [*][2].
Figure 6-1 Bell wiring
BE SURE TO OBSERVE POLARITY WHEN
CONNECTING POLARIZED SIRENS
OR BELLS
BELL LOOP 700mA CONSTANT CURRENT
(2A MAX)
Note:
Bell output is current limited by 2 A. Steady, Fire Pulsed, Fire Temporal Three and CO Temporal Four pattern alarms
are supported.
6.6 Aux power wiring
These terminals provide 2A maximum of current (shared with PGM outputs). Connect the positive side of any device to the
AUX+ terminal and the negative side to GND. The AUX output is protected; if too much current is drawn from these terminals
(wiring short), the output is temporarily shut off until the problem is corrected.
Ratings:
UL/ULC applications: 10.8 Vdc - 12.5 Vdc.
EN50131 applications: 10 Vdc - 14 Vdc.
6.7 Corbus wiring
The RED and BLK Corbus terminals are used to provide power while YEL and GRN are used for data communications. The
4 Corbus terminals of the alarm controller must be connected to the 4 Corbus terminals or wires of each module.
The following conditions apply:
l
Corbus should be run with 18 to 22 AWG quad, two pair twisted preferred.
l
The modules can be home run to the panel, connected in series or can be T-tapped.
l
Do not use shielded wire for Corbus wiring.
Note:
Any module can be connected anywhere along the Corbus. Separate wire runs for keypads, zone expanders etc. are
not necessary.
Note:
No module can be more than 1000 ft / 305 m (in wire length) from the panel.
Do not use shielded wire for
Corbus wiring.
Figure 6-2 Corbus wiring
Module (A) is wired correctly as it is within 1000 ft / 305 m of the panel, in wire distance. Module (B) is wired correctly as it is
within 1000 ft / 305 m of the panel, in wire distance. Module (C) is NOT wired correctly as it is farther than 1000 ft / 305 m
from the panel. For models that require more than 1000 ft / 305 m from the main panel, a HSM3204CX power supply/Corbus
extender can be used.
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