158 E3 Series Installation/Operation Manual — P/N 9000-0574:I 11/04/10
E3 Series System Connections ANU-48 Remote LED Driver Connections
3.12 ANU-48 Remote LED Driver Connections
The ANU-48 remote LED driver is an optional sub-assembly that provides output to a remote
annunciator which may be located up to 3,000 feet from the panel. Up to fifteen (15), additional
annunciators can be connected. Table 3.12.1 lists the resistance limitations for the connecting
circuit.
NOTE: If more than four (4), ANU-48 sub-assemblies are installed, an external regulated and
power-limited power supply Listed for use with fire protective signaling units is required.
3.12.1 Specifications
The following are the ANU-48 electrical specifications.
Quantity of the ANU-48 assemblies 1 2 3 4
Maximum resistance of the 24 VDC power 40 20 14 10
circuit (ohms) to the most distant ANU-48.
Table 3.12.1 ANU-48 Resistance Limitations
Operating Voltage: 24 VDC FWR (from PM-9/PM-9G power supply)
Operating Current: 0.011 amp* (See Note)
Operating Temperature:
32° to 120° F (0° to 49° C)
Relative Humidity:
0 to 93%, non-condensing at 90° F (32° C)
Supervised
Power-limited
NOTE: WIRING REQUIREMENTS
*Add .003 amp for any LED to be lit for any condition when powered internally. When powered
externally, each output driver circuit provides a maximum of .050 amp with a maximum of 2.4
amp per ANU-48 sub-assembly (48 circuits). Each load must have a minimum resistance of 544
Ohms when the external power is supplied from a PM-9/PM-9G. When powered internally, each
LED must have a current limiting resistor in series to limit the current to .003 amp max per LED.
(Example: 8.87K 1% or 9.1K 5%).
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