6/28/2011 DOC.NO.: 150D - 1
P/N RE 150D Rev. No. 1
18
3.3
Input Circuits
The control panel has 2 zone input circuits depending on the
variant. The maximum loop resistance limit for each input circuit is
50 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.
Zone Circuit – Class B
