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4.7.3 AX-LPD and AX-NAC Notification Appliance Circuit Wiring
The AX-LPD and AX-NAC modules provide two additional notification appliance circuits to the AX-CTL-2PCB base
card.
REGULATED 24V DC, 2.0A
5
SUPERVISED, POWER LIMITED.
Class A or B
Class B EOL (End-of-Line) Resistor 10K
Ω
Minimum return voltage permitted is 16V.
Wire range – 22-12 AWG
Maximum line impedance at 2.0A is 1.5
Ω
.
Maximum voltage drop across installation wiring is 3.0V at
battery voltage of 20.4V.
Calculate the maximum line impedance and conductor size
required for the actual load current applied.
Refer to Axis
AX
Wiring Guide Section 9
4.7.4 Replacing the AX-LPD or AX-NAC Module
Note: The AX-CTL-1PCB one loop base card cannot support the AX-LPD or AX-NAC option modules. In
addition, when utilizing an AX-LPD or AX-NAC option module an AX-PSU power supply may be required if
notification appliance circuit power requirements indicate a need for additional power.
Remove power (AC and battery) from the system. Remove all field wiring terminal blocks from the AX-LPD or AX-
NAC module. Remove the four (4) screws securing the module to the AX-CTL base card and remove the module.
Position the new module onto the metal hexagon spacers, while plugging the module into the two (2) 20-pin
connectors on the AX-CTL base card and secure with the four (4) removed screws (see figure 29). It is critical that
these screws are tightly secured as the two top screws are required for the earth ground connection to the AX-LPD
or AX-NAC module.
Failure to tighten screws will defeat the protection circuitry designed to protect the module from damage
due to lightning and static electricity.
4.8 AX-NET4 or AX-NET7 Network Module
The AX-NET4 and AX-NET7 modules are network modules (CCITT RS-485) utilized for connecting Axis
AX
fire alarm
control panels to the Advanced AD-NeT-PluS network. The Advanced AD-NeT-PluS network can support Axis
AX
fire
alarm control panels, remote annunciators with/without control, AX-LAN (ipGateway) and other network nodes.
The AX-NET4 module is utilized with a Class B AD-NeT-PluS network, while the AX-NET7 is utilized with a Class X
(Class A, Style 7) AD-NeT-PluS network.
5
TOTAL OUTPUT LOAD must not exceed panel supply rating – maximum 4A.
The following meter readings are
available on the FACP display per NAC:
Output
Voltage
Input
(Return)
Voltage
Load
Current
(Refer to Section 10.1.1)
