Farfisa AD2121CAG series, Technical Manual

Page: 161 / 208

5.
9
(MT13 - En 2015)
5
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INSTALLATION NOTES
Connection of art. 2221ML or 2221S to the DUO line
The power is supplied to the riser by art. 2221S (or 2222) that must be
installed between the first internal station and the external door station
(or exchanger, in case of multiple risers). Each riser must have its own
line power supply.
Art. 2221ML or 2221S can be connected to its line in five different
modes:
- directly to the line with connection in -out of the wires;
- through connector box with 1 metre maximum distance;
- through line distributor DV2420;
- through distributor of riser 2231;
- through distributor of riser DM2444.
Connection with line distributor DV2420
Connection in-out directly from the line (only in installations
without digital exchanger 2273)
J1 = 2-3
D
LM
LM
J1
1 2 3 4 5
110V÷
240VAC
230V 127V
0
2221ML
LP
LP
LP
LP
PRI
2221S
DV2420
LO LO
LI LI
110V÷
240VAC
230V 127V
0
2221ML
LP
LP
PRI
2221S
LP
LP
Connection with buffer of riser 2231
Connection with distributor of risers and entrances DM2444
Riser “ a “
LI1 LI2 LI3 LI4
LM
LM
DM2444
LI1 LI2 LI3 LI4
Riser "b" Riser "c" Riser "d"
LO1 LO1
2221ML
2221S
LP
LP
LO2 LO3 LO4 LO2 LO3 LO4
127/230Vac
PE 2
(232)
PE 1
(231)
PE 3
(233)
PE 4
(234)
J1=3-4=linea libera
LM
LM
2221ML
2221S
LP
LP
LP
LP
LI
LI
LO
LO
127/230V
ac
LS LS
2231
1 2 3 4
Warning !!
On 2221ML re-
move the jumper J1
J1
DUO line
DUO line
On 2221ML do
not remove
the jumper J1
DUO line towards the main door stations
DUO line towards the risers
J1
On 2221ML do
not remove
the jumper J1
J1
On 2221ML do
not remove
the jumper J1
J1
DUO line
DUO line
DUO line
DUO line towards the riser
DUO line
DUO line
towards the
secondary
door station
Connection with floor distributor
The floor distributors must have the jumper J1 in position 2-3 (open line)
except the last one which must terminate and match the line impedance.
The last video distributor can also be terminated by connecting a video
intercom or intercom. Choose between the positions 1-2 (47
Ω
), 3-4
(70
Ω
) and 4-5 (100
Ω
) depending on the video quality obtained. Also all
the individual video intercoms (VC) and/or intercoms (CT) connected to
the outputs must have the line terminated (to find the position and the
name of the jumper, see table 5.4 and the descriptions of each individual
item). The same system can use both active and passive distributors
(see examples on page 5.10).
Intercom/video intercom serial connection to the floor
distributor output
Each output of the distributors can be connected to up to 3 intercoms/
video intercoms connected serially (in-out).
In this case the line impedance must be terminated only on the last
internal station (normally jumper J1, J2 or J11 position 1-2 depending
on the model - see table 5.4 on page 5.8 ) while the other must have the
line open (position 3-4).
LM LM LM LM
LM LM LM LM
A1 A1 A1
GN GN GN
DV...
VC/CT1 VC/CT2 VC/CT3
J* J* J*
4 4 4 3 3 3 2 2
2
1 1
1
J1 = 2-3
J1
1 2 3 4 5
LO LO
LI LI
J* = 1-2 J* = 3-4 J* = 3-4
DUO line
DUO line
Attention! Place the line termination jumper J.. of the
video intercoms or intercoms on the following way:
VC/CT1 between 3 and 4 (open line)
VC/CT2 between 3 and 4 (open line)
VC/CT3 between 1 and 2 (closing on 100
Ω
) or
between 2 and 3 (closing on 15
Ω
)