EDWARDS SYSTEMS TECHNOLOGY EST2 - Page 36

FIELD WIRING
Notification Appliance Circuits (NACs) / Signature Data Circuit SDC Wiring
270210.CDR REV 3.0 Page 4 of 4
Class A (Style 6) configuration only
5
4
Notification Appliance Circuits (NACs) / Signature Data Circuit SDC Wiring
Legend
Notification appliance
Signature Series
smoke detector
Signature Series
module/pull station
2
2
2
3
UL/ULC
Listed
15 k EOLW
UL/ULC
Listed
15 k EOLW
3
NAC 1 Source: listed fire alarm
power supply or amplifier
NAC 1
NAC 2
Class A (Style Z)
configuration only
N
A
C
s
S
D
C
SIGA/A
SIGA/B
+
+
_
_
NAC1/B NAC2/BNAC1/A NAC2/ASOURCE SOURCE
++++++
______
Main Controller Module
TB1 TB2
TB6
1
2
3
4
5
6
7
Notes
Supervised
Contacts shown with system power applied.
For maximum wire resistance, see the Installation and Service Manual.
No T-taps when wired as a Class A (Style 6) circuit.
Supervised and power-limited
15 k EOL required for Class B (Style Y) wiring only.W
Power-limited if the source is power-limited. If the source is nonpower-
limited, maintain a space of 1/4 inch from power-limited wiring.
Otherwise, use FPL, FPLP, FPLR, or an equivalent in accordance with
the National Electric Code.
(6.4 mm)
2
NAC 2 Source: listed fire alarm
power supply or amplifier
1
1
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