Operation Manual

153
OPTIONAL CONNECTIONS
oor bell push button connection.
D
A
+
_
D
SAR-12/24
P
N
220 Vac/
1.8A max.
IN IN
NC NA C
( )
*
TheneutralsupplyfromthestairslightwillbewiredthroughtherelaycontactsSAR-12/24,themaximumcurrentforstairs
lightwillbe1.8A.
( )
*
uxiliary devices activation with T-740 Plus telephone.
A
To activate auxiliary devices the use of a SAR-12/24 relay unit will be required. If this device is
shared for all the T-740 Plus telephones, link their PA terminal and use just one relay unit. In
case that each telephone has its own application use a SAR-12/24 relay unit for each
telephoneanddon'tlinkthePAtelephoneterminals.
To activate this function, press telephone push button at any moment with no dependence of
thehandsetposition.
Usualapplicationsaretheactivationofstairslight,secondlockrelease,...
First t T-740 Plus telephone must be configured with SW1 dip switch in "PA" output mode
function
(seepage133).
he
T-740 Plus
HZ-
-
HZ
-
T-940 Plus
Platea Plus /
Tekna Plus
T-740 Plus
PA
To distributor/
door panel.
To stairs light
push button
ThePlateaPlus/TeknaPlusmonitorandtheT-740PlusandT-940Plustelephonescanbeusedto
receivethecallsmadefromtheapartmentdoor,savingtheuseofabell.Wirethepushbuttonof
theapartmentdoortothe'HZ 'and' 'monitorortelephoneterminals.
The reproduced acoustic tones are different depending on their provenance, that allows the user
to distinguish where the call is made from. If during a conversation a call is made from the
apartment door, acoustic tones will be reproduced on the handset to advise that someone is
calling.
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