Auxiliary Power Wiring - Simplex XPS Installation Instructions Manual

Auxiliary power wiring

The XPS can receive auxiliary power appliances via the dedicated auxiliary power tap (TB2). If additional power is needed, any of the three NAC outputs
can be used as auxiliary power inputs.
Figure 13, shows how the XPS should be wired for auxiliary power at any given terminal.
• All wiring is 18 AWG (0.8231 mm²) (minimum) to 12 AWG (3.309
mm²) (maximum).
• All wiring is power-limited.
• Auxiliary power may be taken from the dedicated auxiliary power
tap or from an unused NAC.
• If auxiliary power is taken from NAC terminals, the NAC must
be configured as an auxiliary power point type in the panel
programmer.
• Programming may be required for dedicated auxiliary outputs.
• Remove end-of-line resistors from circuits used for auxiliary power.
• External wiring is not supervised unless an end-of-line relay is
wired coil to auxiliary power, and normally open contacts are
monitored by a system power point. Relay current must be
considered as part of the load.
• All wiring that leaves the building requires over-voltage protection.
Install module 2081-9044 (3 A) or 2081-9028 (1/4 A) inside a UL
Listed electrical box wherever wire enters or exits the building. A
maximum of four 2081-9044 modules may be connected to one
channel. When using the 2081-9044, the maximum alarm current
is reduced to 1/4 A for that part of the circuit downstream of the
module.
• CE compliant systems require ferrite beads. Use kit 4100-5129.
• All auxiliary power taps are rated at 2 A. The total auxiliary power
current available is 5 A. The overall total current available is 9 A,
including NAC, auxiliary, and card power. Current used for card
power by modules plugged into the PDI, and an current from aux.
24 V, must be deducted from the 9 A available current.
• Voltage rating: 24 VDC (nominal), 2 V P-P ripple (maximum). The
following devices connect to 2 A aux power:
- 2088-series relays and door holders
- 2098-series four-wire smoke detectors
- 2190-series monitor and signal ZAMs
- 4090-series IDNet ZAMs
- 4098-series four-wire smoke detectors and duct detectors
- Printer
- 4190-9050
- 4190-9051 4-20 mA ZAMs
- LCD Annunciator
• Resettable 24 V is obtained from any aux power point by
programming the point as type resettable 24 V. Refer to the
programming manual for details.
page 14
XPS and XNAC Installation Instructions
Figure 13: Auxiliary power wiring
** 4090-9117 IDNet Power Isolator
* See Figure 14
574-772 Rev. Q