Connections for NACPower Output Modes
There are 3 NACpower output modes: continuous constant power, door holder, and resettable. NAC power
outputs can be wired as 2-wire or 4-wire circuits as shown. When wired using 2-wire configuration, select "Class
B" in the configuration menu. When wired using 4-wire configuration, select "Class A" in the configuration menu.
When using a NACin a power output
mode, each device requires a blocking
diode (not provided) to be connected in
series. These diodes can be any of the
following:
l Diodes, Inc., Part No.: 6A1-T
l SMC Diode Solutions, Part
No.:6A1TA
l Micro Commercial Co., Part No.:
6A1-TP
l Any equivalent standard silicon
diode with parameters of:
n Radial Lead Diameter: 1.0
mm minimum
n Peak Reverse Voltage: 40 V
minimum
n Average Forward Rectified
Current: 6.0 A minimum
Regardless of the wiring schema,
When the NAC is used in continuous constant power mode, it is a special application output with a voltage
range of 20.0 - 26.4V. The wiring loss must not exceed 4V.
When configuring for door holder, the circuit is a regulated 24V output and meets the requirements for a Class
D circuit.
When the NAC is used in resettable mode, it is a special application output with a voltage range of 20.0 - 26.4V.
It can be used to power the following:
l System Sensor i3 series Models: 4W-B, 4WT-B, 4WTA-B, 4WTR-B, 4WTAR-B, 4WITAR-B
l System Sensor i4 Series Models: COSMO-4W, COSMOD4W
l System Sensor End-of-Line Relay: EOLR-1
SHIELD Fire, Safety & Security Ltd
Aura Fire Alarm Control Panel Installation Manual
Version 1.00 |June 2019 |MAN-1431VS
Page 38
Installation
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