Fermax 2040 TELEPHONE CALL EXTENDER
Conventional System: uses wires common to the entire installation plus 1 call wire (or call return) per dwelling.
Recommended in small/medium sized buildings (up to 50 neighbors approx.), with various entrances and central guard unit. For urbanizations with general entrance and inner blocks.
Cabling:
Doorman: 4 common wires + N (1 call wire per apartment).
Video intercom: 7 common wires + 1 video coaxial + N (1 call wire per home).
Maximum distance in the installation depending on the section of the cable used (consult technical manuals)Equipment that allows the doorbell/video doorbell to be heard from a place other than the one where the telephone or monitor is located.
Technical specifications
Installation: 2 wires
Dimensions: 75x75x25mm
System power:
Audio: 12Vac
Video: 18 Vdc
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