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NetAXS™ NX4L1 Installation
Panel Components and Descriptions
3.2 Power Supply
The NX4L1 uses an internal 115 VAC to 24 VDC regulated power supply (Altronix
Model AL600ULXB). The supply uses 115 VAC, 60 Hz, 2 Amp input, and provides
24 VDC at 6 Amps for the system power. The supply also charges and monitors the
condition of the batteries. Wire the unswitched electrical power to the supply per the
National Electrical Code as well as any local electrical codes, including the safety
ground wire.
An input power indicator is supplied, and it is illuminated when input voltage is
present. If the indicator is off, the input voltage is off, or too low to operate the system.
Caution:
risk of electric shock and fire hazard, replace the input fuse with the rating of 3.5A,
250V.
3.3 Batteries
For the NX4L1, two CASIL CA1270, 12 VDC, 7 AHr sealed lead-acud batteries
(Honeywell order number 3-000066) wired in series must be used to have backup
battery capabilitiy. The batteries will provide standby backup power, depending upon
system configuration and activity. The batteries are wired in series (positive on one
battery to negative on the other) and connected to the BATT + and BATT - terminals
on the 24 VDC power supply in the NetAXS™ enclosure. When AC is lost, the power
supply automatically switches to the backup batteries for continuous 24 VDC power.
The power supply has deep discharge protection, and it can provide a Low Battery
signal to the panel if it is connected to a supervised input on the NetAXS™ panel.
Refer to the system wiring diagram for details. Replace the batteries every 2 to 2.5
years, or more often if the system has a high rate of backup use.
3.4 Enclosure
The enclosure is 450 mm (17.7 inches) wide, 607 mm (23.9 inches) high, 90 mm (3.54
inches) deep. The enclosure is shipped pre-wired.
3.5 Suppressors
Two suppressors (HAS number S-4) are required for each door lock. One suppressor
is installed on the panel control board, and the second must be installed at the door
lock.
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De-energize the unit before servicing it. For continued protection against the
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