
2
(MT12 - Gb2004)
TheFarfisaalternatecallsystemallowsforthe
realisationofintercom,videointercom,digital
andintercom-telephonesystems.
The modularity of Farfisa indoor and outdoor
devicesallowsforsystemextensiontosatisfy
the most diverse user’s requirements, from
individualhousestoapartmentbuildings,from
simpleintercomstocompletevideointercom-
telephonesets.
Selecting the system
TheFarfisaalternatecallsystemallowsforthe
realisationofdifferenttypesofinstallation.
• Intercomsystems
• Videointercomsystems
• Intercom-telephonesystems
• Videointercomsystems
• Mixed systems (intercom/video intercom/
telephone)
Intercom systems
Itisthesimplestoftheinstallations. Itprovides
bidirectional audio communication between
intercomsandexternaldoorstationswithdoor-
openingfunction.Thefollowingvariantsofthe
basicinstallation are possible:
-intercommunicating service. It allows for
communicationbetweendifferentintercoms
of the same apartment or between different
apartmentswithprivateconversationtoother
usersandtoexternalstations.
-privateconversation.Byaddingaboardto
eachintercomyoucanrestrictthecommuni-
cationbetween internal and external user to
the called user. The other users do not hear
theconversationinprogresswhentheyliftthe
handset.
Fortherealisationofabasicintercomsystem
youneed4 common wires+ 1 singlefor each
user.
Video intercom systems
Apart from audio communication and door-
openingfunction,videointercomsystemspro-
videvisualcontroloftheentrance.Thetypical
characteristicsofvideointercomsystemsare:
-Timedoperation.Thevideointercomofthe
calleduserisenabledfor about 40 seconds.
Thetimedoubles if the handsetislifted.The
systemreturnstothestand-bystatewhenthe
handsetisreplaced.
-Private conversation. Video intercom sys-
temsallow for audio communicationonly for
the called user. The other users do not hear
theconversationinprogresswhentheyliftthe
handset.
-Intercommunicating service. This service
allowsforaudiocommunicationbetweendif-
ferent intercoms or video intercoms of the
same apartment or between different apart-
mentswithprivateconversationtootherusers
orexternalstations.
-ControlswitchingON.Theusercanenable
thesystem,switchONhis/herownvideointer-
comandmonitortheareaframedbythecam-
era. Additional wires and activation buttons
areneededincaseofmultipleentrances.
INSTALLATION INSTRUCTIONS
I
NTERCOMS *
V
IDEOINTERCOMS *
T
ELECOMMUNICATION
For the realisation of basic video intercom
systemsyouneed7commonwires+1single
foreachuser+commoncoaxialcable.
Intercom-telephone and video intercom-
telephone systems
Itisavariantoftraditional intercom and video
intercomsystemsinwhichinternalstationsuse
telephones(withmonitorsforvideointercom-
telephone functions) instead of intercoms or
videointercoms.Inthiscaseintercomconnec-
tions are established over an interface board
thatprovidestelephoneandintercomcommu-
nication. The interface can be a stand alone
product (art. FT11D) or an interface board to
be installed inside the FT105P or FT208P
electronic PABX (art. ES60 or ES65).
Internalstationscanuse:
-astandardtelephoneinwhichintercomfunc-
tions are obtained by dialling specific codes
onthekeypad
-an intercom-telephone set (art.ST740) or
video intercom-telephone set (art.ST740 +
ST7100) with telephone functions and spe-
cificbuttonsforthemainintercomservices.
In intercom-telephone systems the intercom-
municatingservicecanbe realized by means
ofa PABX thatallowsalso for privateconver-
sation.
Intercom-telephonesystemsneed4common
wires + 1 single for each user (+ 3 common
wires+commoncoaxialcableortwistedpairin
caseofvideointercom-telephonesystems)for
connections to the riser. Telephone connec-
tionsare made witha telephone pair.
Mixed systems (intercom/intercom-tele-
phone/video intercom-telephone)
All intercom, intercom-telephone and video
intercom-telephonesystemscanbecombined
accordingtotheuser’srequirements.
Choosing the correct article
Whenchoosingthearticleandtypeofinstal-
lation,youshouldconsider:
• user’srequirements
• numberofusers
• installationpossibilities
• possiblelocation ofarticles.
Thefollowingoptionsarepossibleforexternal
door stations:
•Mody series push-button panels for inter-
com, telephone and video intercom sys-
tems
•Matrix series stainless steel push-button
panels for intercom, telephone and video
intercomsystems
•Prestige series brass push-button panels
forintercom,telephoneandvideointercom
systems
•ErreP/Rseriespush-buttonpanelsforinter-
comandtelephonesystems
•TM seriespush-buttonpanelsforintercom
andtelephonesystems
•UPseriespush-buttonpanelsforanalogue
intercomandtelephonesystemswithmaxi-
mum2calls
Thefollowingoptionsarepossibleforinternal
stations:
•Studiomodularlineforintercom-telephone
andvideointercom-telephonesystems
•Projectlineforintercomandvideointercom
systems
•PuntoVirgolaforintercomandvideointer-
comsystems
•Slim(900)lineforintercomsystems
Speaker
Microphone
Button
Resistance
Lamp
Optionalwire(usuallycontrolswitch-
ing ON, door release button or inter-
communicatingcalls)
Dashedline(forschematicpurposes
thefirstandlastmonitorsareshownin
the multi-family systems. Required
additionalmonitorscanbeinsertedin
such dashed line to complete the in-
stallation).
Diode
Electronicringerorbuzzer
Coaxial cable
xn
x2 Callwires(secondandlast)
Telephonepair
Electric door lock
Graphicsymbols
Thefollowingsymbolsareusedintheinstalla-
tiondiagrams:
Mechanicalbuzzer