27AFP-3030 Installation Manual — P/N DOC-01-031:F 19/11/2018Appendix A: Electrical SpecificationsA.1 Operating PowerDC Power The control panel requires connection to NPS-5CHS or NPS-11CHS, which is a 27.3 V DC regulated, power-limited powersupply, that can supply 0.1 amps continuous for the CPU without the display (0.3 amps for CPU with the display).A.2 SLC LoopsListed below are specifications for a Signalling Line Circuit loop. Refer to the SLC Wiring Manual for more detailed specifications andspecific device listings:A.3 Notification Appliance CircuitsThe power supply provides Notification Appliance Circuits. The maximum current rating for each NAC output is 1.0 A. Refer to theDevice Compatibility Document for compatible devices and notification appliances.A.4 NetworksA.5 Wire RequirementsEach type of circuit within the Fire Alarm Control System requires use of a specific wire type to ensure proper circuit operation. Thewire gauge of a particular circuit depends on the length of that circuit and the current traveling through it. Use the table below to deter-mine the specific wiring requirements for each circuit.Use twisted-pair shielded wire for any non-SLC-loop wiring entering or exiting the cabinet that is not enclosed in conduit. Use twisted-pair unshielded wiring for SLC-loop wiring.Item ValueVoltage 24 V DC nominal, 27.6 V DC maximumMaximum length The maximum wiring distance of an SLC using 12 AWG (3.25 mm 2 ) twisted-pair wire is 3810 m.Note: Refer to Appendix A.5 “Wire Requirements” for limitations.Maximum current 130 mA: LCM-320100 mA: LEM-320400 mA max*: Single SLC loop; for battery calculations use 200 mA*Max short circuit; circuit will shut down until short circuit condition is corrected.Maximum resistance 50 ohms (supervised and power-limited). For additional notes on SLC resistance values, see Section 4.1“Operational Checks”.Table A.1Network Card Communication ParametersNCM-W Supports twisted-pair wire medium, data is regenerated at each node. 312.5K baudtransmission rate.NCM-F Supports fibre-optic medium (62.5/125 or 50/125 micrometres – multimode). Single modeavailable. 312.5K baud transmission rate. Data is regenerated at each node.HS-NCM High-speed data communications (12 Mb wire, 100 Mb MF/SF fibre). Multi-mode fibre optic(MF), single-mode fibre optic (SF), wire (W), or a combination of W/MF/SF communicationspath.Table A.2NOTE: If running an SLC in conduit with Notification Appliance Circuits, you can reduce problems by exclusively usingelectronic sounders (such as the MA/SS-24 Series) instead of more electronically noisy notification appliances (such aselectromechanical bells or horns).