Instruction manual

3-8
! Caution:
! Caution:
Central Amplified Speaker Notification Appliance Output Wiring
Wire gauge may vary for each audio appliance output on the panel. When:
• Speaker (with transformer) appliances are used with supervised audio amplifier
module (central amplified outputs). Wire gauge selection should involve
consideration of all factors including, wire length, appliance power ratings, and the
number of appliances.
• The central amplified output is either a selectable 25, 70.7 or 100 volt audio output,
rated for 40, or 80 watts maximum, depending upon the amplifier and its
configuration.
• The output meets Class B supervision requirements for notification appliance circuits.
• Each output circuit shall have a UL LISTED, 10K Ohm EOLR resistor (1W) installed
across the last audio notification appliance. If the output is unused, it shall have a UL
LISTED, 10K Ohm EOLR resistor (1W) across the output terminals. Each amplifier
module contains the required number of EOLRs for the supervised outputs. If more
are needed, recommend using Wheelock, Inc. End of Line Resistor Kit (Model
Number EOLK, Part# 5076), which contains Eight (8) UL LISTED 10K Ohm 1W
resistors.
Wiring Diagrams for the Audio Portion of Audio/Visual Notification Appliances
+
_
UL LISTED 10K
END OF LINE
RESISTOR
AUDIO
Figure 3-6
Wiring Diagram for Audio Notification Appliance Output
Do not loop wire under terminals. Break wire run to provide
supervision of connection.
+
_
UL LISTED 10K
END OF LINE
RESISTOR
+
_
AUDIO
STROBE
UL LISTED 10K
END OF LINE
RESISTOR
Figure 3-7
Wiring Diagram for Combination Audio/Visual Notification Appliances
for Central Amplifier Applications
Do not loop wire under terminals. Break wire run to provide
supervision of connection.