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Concord Ultra 12
Note
The Two-Wire Smoke set-
ting (in program mode) must
be off when using 4-wire
smoke detectors. See
ONBOARD OPTIONS—INPUTS
in the section “Programming
the Panel” for complete
details.
Figure 8. Wiring Smoke Detectors
Connecting 4-Wire Smoke Detectors
Zone input 8 can be used with 4-wire smoke detectors that latch and remain in the alarm state
until power is removed, then restored to the detector. The panel provides this power interruption
from terminal 23 (2-wire smoke power +), provided that zone 8 is learned into sensor group 26
(fire).
Note
Zone 8 must be learned into
sensor group 26 (fire) for
connected smoke detectors
to reset after canceling a fire
alarm.
Table 5 describes the minimum available panel power. Use only 4-wire smoke detectors that
operate at these power limits. Connect up to five Sentrol (ESL) model 449AT (part no. 13-360)
smoke detectors to panel power and zone 8 input as shown in Figure 8.
Connecting Speakers
Note
Install all sirens/speakers
indoors, in a concealed loca-
tion.
The panel provides one siren driver output for intrusion (steady), fire (temporal 3), and auxiliary
(on-off-on-off) alarm sounds. This output trips only for partition 1 alarms.
The output can drive a single 8-ohm speaker or multiple speaker circuit of 8-ohms or higher (as
shown in the following speaker wiring diagrams). Compatible speakers are described under
“Connecting Piezo Sirens”.
To avoid disabling the panel speaker output, do not make speaker connections with the
panel powered up.
15-Watt Speaker (13-060)
For exterior siren applications. Connect the speaker to the panel as shown in Figure 9.
2 2
2 3
Z O N E
8
+ 1 2 V
2 W S M K
+
-
+
-
Panel
Terminals
2k Ohm EOL
(Locate at Last Detector)
Resistor 49-454
2-Wire
2k Ohm EOL
(Locate at Last Detector)
Resistor 49-454
Model
449AT
Model
449AT
4-Wire
Panel
Terminals
Zone
8
2W SMK
+12V
22
23
Table 5: Panel Minimum Available Power
Min. Voltage/Max. Current Available
8.3 VDC, up to 30 mA total (combined alarm) current
8.1 VDC, up to 40 mA total (combined alarm) current
7.7 VDC, up to 60 mA total (combined alarm) current
7.4 VDC, up to 80 mA total (combined alarm) current
Caution
!