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Farfisa ST 720 Technical Manual page 228

Electronic call systems

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Si 412T/2
TWO-WAY VIDEO INTERCOM-TELEPHONE INTERCOMMUNICATING SYSTEM WITH PABX CONNECTED TO ONE EXTERNAL
DOOR STATION
Q.ty
Article
4
ST7100W+WB7100
8
ST740W+WB700
1
FT208P
1
ES60-ES65
1
DV2
1
1281
1
1282E
1
PA **
1
SE **
Mody series external door station
1
MD72
1
MD12
1
MD82
1
MD92*
1
MD30
1
MD41D
Matrix series external door station
1
MA72
1
MA62
1
MA22
1
MA42
1
CV01
1
MA92*
Profilo series external door station
1
PL71
1
PL42P
1
CV01
* The rain shelter is used in the place of the back box and
hood cover.
** Articles not supplied by ACI Farfisa.
Notes
- For the connection of name plate lamps read notes 6, 7 and
8 of the installation instructions on page 111.
- If the control switching ON is necessary, connect terminal 4
of the timer (dashed wire).
- To install a colour system, the ST7100CW video intercoms
and the MD41C, MA42C or PL42PC camera must be
used.
- For wires dimensioning and video connection refer to the
installation instructions and table on pages 111 and 114.
- For other types of push-button panels see the general
catalogue.
Programming
When using the PABX, the following programming must be
absolutely carried out:
- intercom interface activation
- activation to receive intercom calls
- how to assign incoming external lines
- how to assign outgoing external lines
See pages 209 and 210.
Description
Studio series monitor + bracket
Studio series telephone + bracket
PABX
Intercom-telephone interface for PABX
Video distributor
Power supply
Timer
Door release button (optional)
Electric door lock (12Vac-1A)
Back box and module frames
Module for electric door speaker
Hood cover
Rain shelter and module frames
Electric door speaker (amplifier)
Camera
Back box and module frames
Front frame
Button module
Camera with integrated audio amplifier
Video signal converter
Rain shelter and module frames
Back box and module frames
Camera with audio amplifier
Video signal converter
Application diagram
When using MD200 amplified external door stations, place this diagram on the
diagram on page 227 and line it up with the riser.
226
(MT11 - Gb2006)
Connection of 1281E power supply-timer
instead of 1281 plus 1282E.
C+
By adding 1281E to the schematics on page
227 instead of 1281 plus 1282E, the system
working will modify as follows:
- switching-OFF at the end of the timing only
- no control switch-ON interruption with the
videointercoms during external audio-video
connection. If the service is necessary, add
1471 relay in order to interrupt conductor 4.
1D
2D
3D
4
5
7
IV
1282E
H
C+
S
X
F
H
2
3+
A
1
PA
1281E
S
X
F
H
4
5
3+
A
For si412t2
only
1281
I
230V
127V
A
0
MD72
2
MD200
1
H
X
Y
F
MD41D
SE

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