Page 13 579-1102 Rev H
4007ES and 4007ES Hybrid Fire Alarm Systems Installation Manual
4.3 Specifications
Table 6: Specifications
Maximum appliances 70 per circuit.*
* Each 49CMT series appliance counts as 5 regular appliances for the maximum 70 appliances that can be supported per NAC. As the earth fault
sensitivity with thirteen MT appliances drops from 10 K to 9.6K ohms, no more than thirteen 49CMT series appliances may be placed on one circuit.
Electrical specifications:
Voltage 24 VDC nominal.
Alarm current The maximum alarm current is 3 A per circuit.
Supervisory current Refer to Table on page 13.
Special application appliances (TrueAlert Non-
Addressable)
6 A total.
NOTE:
When NACs are used for Regulated 24DC appliances, maximum current per NAC is reduced to 2 A and total power supply notification current rating
is reduced to 3 A. Current used by modules powered from the 4007ES power supply must be deducted from the total current.
4.3.1 Wiring parameters
The NAC power supply is supervised and power-limited. See Table on page 13 for the NACs’ supported EOL resistors and the related supervisory
current, and see Table on page 13 for the wiring parameters.
NOTE: If a shielded wire is used, cut it and tape it at both ends.
Table 7: Wiring parameters
Maximum wiring distance
Maximum cable load 10,000 ft (3,048 m) per channel
Maximum wire length from panel to any device 4,000 ft (762 m)
Maintain the correct polarity on terminal connections. Do not loop wires under terminals.
Table 8: Supported EOLR and supervisory current
EOLR Current
3.9 k 5.7 mA
4.7 k 4.8 mA
5.1 k 4.4 mA
5.6 k 4.0 mA
10 k 2.2 mA
15 k 1.4 mA
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