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Farfisa ST 720 Technical Manual page 189

Electronic call systems

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MULTI-WAY additional diagrams
1 VIDEO INTERCOM AND 1 INTERCOM WITH INTERCOMMUNI-
CATING SERVICE
230V
127V
0
12a
13a
13
12
14
F
PRS210
D
Xn
D = 100V-1A diode (type 1N4007).
Read notes 1, 2 and 4 of page 176.
1 VIDEO INTERCOM AND 2 INTERCOMS WITH INTERCOMMUNI-
CATING SERVICE
2443
230V
127V
0
12a
12
14
F
13a
13
PRS210
D
Xn
D = 100V-1A diode (type 1N4007).
ST7100+
WB7100+
ST720+
WB700+
ST701
Read notes 1, 2 and 4 of page 176.
230V
127V
GN30
S2
0
2443
PRS210
VC1
8
V
M
CT1
F
H
1
1
2
2
3
3
4
5
5
9M
9
1C
3A
ST
704
9R
P1
PC
C
1
P
9A
ST720+
ST7100+
ST701+
WB7100+
ST704
ST720+
WB700+
RL37
PRS210
IV
230V
B
127V
9P
H
9R
7 9M
0
VC1
8
V
M
CT1
CT2
F
H
1
1
1
2
2
2
3
3
3
4
5
5
5
9M
9
9
1C
3A
3A
9R
PC
P
9
P1
P1
C
C
C
P1
9A
P2
C
C
C
P2
P2
9A
ST720+
ST720+
ST701+
ST701+
ST704
ST704
2 VIDEO INTERCOMS WITH INTERCOMMUNICATING
SERVICE
230V
127V
0
12a
PRS210
D
Xn
D = 100V-1A diode (type 1N4007).
Read notes 1, 2, 3 and 4 of page 176.
2 VIDEO INTERCOMS AND 1 INTERCOM WITH INTERCOMMUNI-
CATING SERVICE
2443
230V
127V
0
12a
12
14
F
13a
13
PRS210
D
Xn
ST
704
1
D = 100V-1A diode (type 1N4007).
2
Read notes 1, 2, 3 and 4 of page 176.
187
(MT11 - Gb2006)
GN30
S2
13a
12
14
F
13
2443
VC1
8
V
M
F
H
1
2
3
4
5
9M
1C
9R
PC
P
ST7100+
WB7100+
ST720+
WB700+
RL37
IV
I
1281
230V
B
A
127V
9P
H
9R 7 9M
0
VC1
VC2
8
8
V
V
M
M
F
F
H
H
1
1
2
2
3
3
4
4
5
5
9M
9M
1C
1C
9R
9R
PC
PC
P
P
9
P1
C
C
P1
9
C
C
P2
P2
ST7100+
ST7100+
WB7100+
WB7100+
ST720+
ST720+
WB700+
WB700+
ST701
ST701
230V
127V
0
PRS210
VC2
8
V
M
F
H
1
2
3
4
5
9M
1C
P
PC
9R
ST7100+
WB7100+
ST720+
WB700+
S
T
U
CT1
D
1
2
3
5
9
I
3A
ST
704
P1
O
1
C
P2
2
C
9A
ST720+
ST701+
ST704

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