Chapter 2. Installation and System Checkout
2-13
Auxiliary 24 V Wiring
• All wiring must be 18 AWG (minimum) to 12 AWG
(maximum).
• Conductors must test free of all grounds and stray volt-
ages before connection to appliances, devices, and
panel.
• All wiring is supervised and power-limited.
• Voltage rating (24 VDC special application): 1 V p-p
ripple (maximum)
- 0.5 A maximum available aux 24 V from EPS
- Additional 0.5 A maximum available from Main
System Board (MSB) AUX 24 V
- 3 A total available from MSB NACs and MSB
AUX 24 V.
- 3 A total available from EPS NACs and EPS AUX
24 V.
• Compatible with Simplex 4098 Series Peripherals; 2098
Series Relay Modules; all Simplex 4090 Series IDNet
Peripherals; and 4610-9111 / 4606-9101 Annunciators.
• If wiring is routed outside the building, use of a listed
secondary protector is required. Use Simplex Model
2081-9028 or 2081-9044. A protector must be installed
at each building exit/entrance. Each 2081-9044 adds 6
ohms wiring resistance, and is rated for 200mA. Each
2081-9028 adds .2 ohms wiring resistance, and is rated
for more than 1/2A Aux. 24V capacity.
• Compatible devices must operate from a range of 19.5
to 28 VDC or greater, and have a total current draw of 1/
2 A or less.
Figure 2-14 Aux 24V Wiring
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