56
(MT12 - Gb2004)
Si 131L/5M
I
NTERCOMS *
V
IDEOINTERCOMS *
T
ELECOMMUNICATION
5 INTERCOMMUNICATING INTERCOMS CONNECTED TO 3 EXTERNAL DOOR STATIONS WITH COMMON CALL. ELECTRONIC
BELL FOR INTERNAL CALLS.
Q.ty Article Description
... PT520 Project series modular intercom
... PT501 Single button unit
... SR40 Electronic bell module
1 PRS226 Power supply-switcher
2 1473 Exchanger
3 PA ** Door release push-button (optional)
3 SE ** Electric door lock (12VAC-1A)
Door station series Mody
3 MD71 Module frames with back box
3 MD11 Module for electric door speaker
3 MD81 Hood cover
3 MD91* Rain shelter with module frames
3 MD30 Electric door speaker (amplifier)
Door station series Matrix
3 MA71 Module frames with back box
3 MA11P Module with integrated audio amplifier
3 MA61 Front frame
... Refers to number of users (see table).
* Rain shelters are used instead of back boxes and hood
covers.
** Articles not supplied by ACI Farfisa.
Working instructions
As the basic system described on page 27, with the
following variations:
- The audio functions and door lock opening are automati-
cally switched to the door station which has made the call
and remain in this state until a call from another entrance
is received.
Notes
- For the connection of name-plate lamps, read notes 6
and 7 of the installation instructions on page 26.
- For wires dimensioning refer to the installation recom-
mendations and table on page 26.
- For other types of push-button panels see pages 22 and
23 or the general catalogue.
P
R
O
J
E
C
T
In intercoms cut the jumper W1 that connects
terminals 3 and 7 and apply:
- the electronic buzzer SR40 by connecting wires 7
and 9 to the intercom terminals 3 and 9,
- or use the buzzer SR41 by connecting terminals 3
of buzzer and intercom together and by connecting
the call wires to terminal 4 (instead of terminal
as shown in the diagrams).
In all intercoms connect one
of the two terminals of the sin-
gle button unit to terminal 7.
Number of inter- Project Application dia-
communicating PT520 PT501 SR40/SR41 gram on page:
220266
333366
448466
5515557
6624667
7735767
88488*
99639*
10 10 80 10 *
* upon request
Table for choosing intercoms and accessories for the required type of
installation
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