9
Installation and Maintenance Instructions
Model 450E Electronic Horn
To wire the horn:
1.
Connect the positive (+) lead from the power source to one of
the positive terminals of the connector plug.
2.
Connect the negative (-) lead from the power source to one of
the negative terminals of the connector plug.
3.
See Figure 3. Connect the remaining positive (+) and negative
(-) terminals on the connector plug to the next horn or an end-
of-line device.
NOTE:
This device is polarized by a diode for use in
supervised systems. Refer to local fire alarm codes if an
End-of-Line Device is necessary.
Figure 3 Wiring connections
Vdc POWER
END-OF-LINE DEVICE
RECOMMENDED BY
CONTROL UNIT SUPPLIER
290A7591
-
-
+
+
-
+
Mounting the Horn
SHOCK HAZARD — To avoid electrical shock hazards and
equipment failure, refer to the warning messages to installers
and the installation instructions before installing the horn.
Failure to heed this warning may cause serious injury or death.
There is no specific mounting orientation required for the horn. For
the required spacing between horns, refer to the local fire alarm code.
