Simplex 4007ES Hybrid - Auxiliary Power Section; AUX PWR;SNAC Overview

5-5
Chapter 5 4007ES Power Supplies
Auxiliary Power Section
AUX PWR/SNAC
Overview
The AUX PWR/SNAC terminal block is located
on the top left corner of the power supply.
Through the ES Panel Programmer, this point
can be configured as either a 24V Auxiliary
(AUX) power or as a simple reverse polarity
Notification Appliance Circuit (NAC). This
circuit does not support TrueAlert addressable
devices nor non-addressable smartsync
appliances.
The AUX PWR/SNAC is rated 2 A maximum.
Current used is deducted from the total available
power supply current.
Figure 5-5. AUX/SNAC Terminal
AUX PWR/SNAC
+ -
Table 5-3. AUX/SNAC Wiring Specification
Output rating: 29.5 V maximum
Figure 5-6. Simple NAC Wiring
Current Rating: 2 A, maximum.
Earth Detection
Threshold
10K ohms minimum from either
positive or negative terminals.
Wiring Gauge: 18 AWG (min.)
to 12 AWG (max.).
Wiring Notes:
1. All wiring from the AUX/SNAC is power limited.
2. Conductors must test free of all grounds and stray voltages
before connection to appliances and panel.
3. Terminate Class B NACs as shown using 733- 894 EOL.
For Canadian applications, mount end-of-line resistor to
TEPG-US Model 431537 EOL plate in accordance with
ULC-S527.
4. If wiring is routed outside the building, use of a listed secondary protector is required. Use Simplex 2081-9028 (rated 5 A) or 2081-
9044 (rated 0.2 A). A protector must be installed at each building exit/entrance. Each 2081-9028 adds 0.2 ohms wiring resistance.
2081-9044 adds 6 ohms wiring resistance, and will greatly reduce wiring distance.
733-894
10K EOLR
TYPICAL AUDIBLE/VISIBLE APPLIANCES
NAC -
NAC+
+ B - B
IDNET
B+ A+ A-B-
RUI
B+ A+ A-B-
AUX PWR / SNAC
+-
Table 5-4. Simple NAC Wiring Limits
Alarm Current 20 AWG 18 AWG 16AWG 14 AWG 12 AWG
Line Resistance
(Ohms)
0.25 617 ft 981 ft 1560 ft 2480 ft 3944 ft 14.00
0.50 308 ft 490 ft 780 ft 1240 ft 1972 ft 7.00
0.75 206 ft 327 ft 520 ft 827 ft 1315 ft 4.67
1.00 154 ft 245 ft 390 ft 620 ft 986 ft 3.50
1.25 123 ft 196 ft 312 ft 496 ft 789 ft 2.80
1.50 103 ft 163 ft 260 ft 413 ft 657 ft 2.33
1.75 88 ft 140 ft 223 ft 354 ft 563 ft 2.00
2.00 77 ft 123 ft 195 ft 310 ft 493 ft 1.75
Note: This Chart indicates the maximum distance for 1/4 -2A loads. Wiring distance is from the panel terminals to the last
appliance. Use of a 2081-9044 protector reduces wiring distance.