Ravel RE-900, Инструкция по установке, пусконаладке и эксплуатации

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24 RE / DD / UM / RE-900 1.0-0
3.2 Input Circuits
The control panel has 12 – 128 zone input circuits. The maximum loop
resistance limit for each input circuit is 100 ohms. All field wiring of
each zone is supervised for opens and ground faults. Both conditions
are visually and audibly (toggle tone) annunciated.
Each zone is a Class B Initiating Device Circuit (IDC – Zones) designed
to accept any normally open contact devices and conventional 2-
wire, 24 volt smoke detectors.
It is allowable to mix an assortment of device types (i.e. smoke
detectors, heat detectors, pull stations, etc.) on any zone.