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Installation Relays
28 Unimode 9600 PN 51336:C 11/06/01
2.3 Relays
The FACP provides two programmable Form-C relays and one fixed fail-safe Form-C
trouble relay, all with contacts rated for 2.0 amps @ 30 VDC (resistive) or 0.5 amps @ 30
VAC (resistive). The Alarm and Supervisory silk-screen labels reflect the factory default
programming for the two programmable relays.
Note that relay connections may be power-limited or nonpower-limited, provided that
0.25” spacing is maintained between conductors of power-limited and nonpower-limited
circuits. Refer to UL Power-limited wiring requirements.
2.4 Notification Appliance Circuits
The control panel provides two NAC (Notification Appliance Circuits) configurable for
Style Y/Class B or Style Z/Class A. Each circuit is capable of 3.0 amps of current. Total
system current cannot exceed 7.2 amps (refer to "Calculating the System Current Draw"
on page 128). Use UL listed 24 VDC notification appliances only. Circuits are supervised
and power-limited. Refer to the ADT Device Compatibility Document for a listing of
compatible notification appliances. The two NACs, which are located on the main circuit
board, may be expanded via the FCPS Series field charger/power supplies. Surge
protection for notification appliances may be provided by using one of the UL listed
compatible surge suppressors listed in the ADT Device Compatibility Document.
ALARM
RELAY
NO NC
NONC NO
NC
CC
C
SUPV
RELAY
TROUBLE
RELAY
Figure 2.5 Relay Terminals
Relay contacts shown with power applied to panel and
no active troubles, alarms or supervisories
TB5
Note that the relays labeled as Alarm
Relay (Relay 1) and Supervisory Relay
(Relay 3) reflect the factory default
programming for these relays which are
programmable.
The relay labeled Trouble Relay (Relay 2)
is fixed and cannot be changed. It is a fail-
safe relay which will transfer on any
trouble or total power failure.
9600reyp.cdr
Reference
Manual
See Page
++
B+ A+ A- B- B+ A+ A- B-
1 2 3 4 5 6 7 8
Figure 2.6 NAC Connections
Style Y (Class B) Notification Appliance Circuit, supervised
and power-limited - 4.7 kohm, ½ watt P/N:71252 UL listed
Style Z (Class A) Notification Appliance Circuit,
supervised and power-limited
Polarized Bell Polarized Bell
Polarized Horn
Polarized Horn
Polarized Horn
Polarized Strobe
Notification Appliance Circuit
polarity shown in alarm state
Dummy Load all unused circuit
TB4
+
+
+
9600nac.cdr