P/N CWSI-IM-C3K5D Rev. H
© 2017 Johnson Controls. All rights reserved. All specifications and other information shown were current as of document revision
date and are subject to change without notice
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5.2.2 Notification Appliance Circuits (TB1 Terminals 1-4 on receiver
card)
The CP-3500D control panel provides a notification appliance circuit which is field selectable for
either 1 Class A Style Z or 2 Class B Style Y supervised non-power limited outputs. The NAC output
is both a special application and regulated output. The power limitations for each application are listed
below. Power limited and non-power limited circuits must be separated by at least .25” within the
enclosure and run in separate conduit.
Note: All wiring from the TB1 connector must be run in
conduit and contained within one room. Use minimum 18 awg wire.
Refer to figure 4 for
suggested wire routing. The outputs are supervised for wiring integrity and ground fault. Output
voltage is 24 Volts D.C. as shown in figure 6. The Class setting is selected with SW4 on the receiver
card. The NAC circuit connector is labeled TB1 and centrally located along the lower edge of the
receiver card. When operating on back up batteries the CP-3500D will maintain the NAC circuit
output voltage within UL limits even if the battery voltage drops to the low battery threshold of 20.4
Vdc. The NAC circuits are also site programmable for activation and deactivation. Refer to the
programming section for complete activation and deactivation programming options. The circuits
utilize current sensing technology and if the rated current draw is exceeded a NAC overload trouble
signal will be displayed and the NAC circuit output will deactivate. It will attempt to reactivate only if
another device programmed to activate it sends an alarm or the NAC circuit is reset by the control
panel and then reactivated by another alarm. In class B operation, an end of line resistor P/N TR-3
must be placed at the last appliance connected to the circuit or an eol violation trouble will be
displayed on the CP-3500D.
Note: A TR-3 eol resistor is only required if the NAC outputs are
programmed to activate.
A ground fault trouble will also be displayed if a ground fault of 1000 ohms
or less is present on a NAC circuit. Figure 6 shows proper wiring of NAC circuit. Table 1 shows
compatible notification appliances. Synchronization of Gentex model horns and strobes can be
achieved by setting SW2 #2 to the right towards the sync text. When sync is selected the CP-3500
will automatically synchronize compatible Gentex models on each nac and between nacs without the
use of an external sync module. All other model compatible horn and strobe synchronization is
achieved by using one of the compatible synchronization modules. The NAC outputs can also be
synchronized together using the listed sync modules.
Special Application NAC Output ratings:
Class B – 2 output circuits
Non-power
limited
over current protected
24 Volts D.C. @ 1 Amp each
Class A – 1 output circuit
Non-power
limited
over current protected
24 Volts D.C. @ 1 Amp
Regulated NAC Output ratings:
Class B – 2 output circuits
Non-power
limited
over current protected
24
Volts
D.C.
@ 100 Milliamps each
Class A – 1 output circuit
Non-power
limited
over current protected
24 Volts D.C. @ 100 Milliamps
