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Si 221L/5S
5 INTERCOMMUNICATING INTERCOMS CONNECTED TO 2 EXTERNAL DOOR
STATIONS WITH COMMON CALL
INTERNAL STATIONS
EXHITO series
...
EX320
...
...
EX301
...
...
ST704
...
EXTERNAL DOOR STATIONS
PROFILO series
2
PL71
2
PL81
2
PL91 *
2
PL11P
VARIOUS ARTICLES
1
PRS226E
1
1473
...
PRS210
...
RL 37
2
PA **
2
SE **
... Refers to number of users (see table on the bottom of this page).
(
1
) Or MA61.
* 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 183, with the following variations:
- the audio functions and door lock opening are automatically switched to
the door station which has made the call and remain in this state until a call
from another entrance is received.
Notes
- Do not forget to connect terminals C of the additional buttons and install the
EX304 or ST704 speaker module in every intercom.
- For the connection of name-plate lamps, read notes 6 and 7 of the
installation instructions on page 146.
- For wires dimensioning refer to installation instructions and table on page
146.
Table for choosing intercoms and accessories for the required type of installation
E
N. of intercom-
X
municating
EX320
H
I
2
2
T
3
3
O
4
4
S
5
5
T
U
D
I
O
STUDIO series
EX310
...
ST720W
EX301
...
ST701
ST704
...
ST704
MATRIX series
MODY series
2
MA71
2
1
2
MAS61 (
)
2
2
MA91 *
2
2
MA11P
2
2
Power supply-switcher
Exchanger
Transformer
Relay module
Door release push-button (optional)
Electric door lock (12VAC-1A)
Exhito
Exhito
EX301 EX304 EX310
EX301 EX304 ST720W ST701 ST704 RL37 PRS210 gram on page:
0
2
2
3
3
3
8
4
15
5
MD71
MD81
MD91 *
MD11
MD30
Studio
0
2
2
2
3
3
3
6
4
12
5
20
172
(MT11 - Gb2012)
Accessories
Application dia-
2
0
0
180
3
0
0
180
4
1
1
180
5
1
1
173
EX320
ST 720
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