Notification Appliances—E Series Speakers and Strobe Speakers 17
Use care and proper techniques when positioning the field wires in the backbox. Be sure
to use the minimum required space and avoid undue stress on the product. This is
especially important for stiff, heavy gauge wires and wires with thick insulation or
sheathing.
Do not use more lead length than required when terminating field wires. Excess lead
length may result in insufficient wiring space for the signaling device. Do not pass
additional wires (used for equipment other than the signaling device) through the
backbox. Excessive wires may result in insufficient wiring space for the signaling device.
Refer to Figures 6 and 7 when wiring the device. Figure 6 illustrates the polarity for the
proper operation of the strobe notification appliance. Reverse the polarity for DC
supervision of the NAC.
s tro bw r2
S trob e
(O ptional)
1/4
1/2
1
2
C
Figure 6: E Series Strobe Speaker Circuit Board Layout
A blocking capacitor for DC supervision of audio lines by the Fire Alarm Control Panel
(FACP) is factory wired in series with the speaker input.
(1.5 microfarad for 25 VRMS speakers and 0.15 microfarad for 70 VRMS speakers.)
Wiring
Installation
Guidelines
Wiring the Device
