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I
NTERCOMS
*
V
IDEOINTERCOMS
*
T
ELECOMMUNICA
TION
1473. 4-CONTACT ANALOG EXCHANGER.
It is installed in intercom systems with two or
more entrances for switching the audio lines
and door lock of the calling entrance. It can be
installed on DIN bar or with two screws. In
housing DIN bar 8 modules A.
Art. 1473 completely replaces the functions of
models 473 and 273.
Technical data
Power supply:
13Vac; 15÷21Vdc
Current consumption: 0.1A
Number of exchanges: 4
Max. switching current: 5A (50V)
Housing: DIN 8 modules A
Operating temperature: 0° ÷ 50°C
Maximum permissible humidity:
90% RH
Terminals
1
Power supply 13Vac-0.1A
2
Ground
3 and 4
Driver to switch the relay to “b” posi-
tion - ON position
5 and 6
Driver to switch the relay to “a” posi-
tion - OFF position
7, 8, 9 and 10
Common contact of relays
7a, 8a, 9a and 10a OFF position of the relay
contacts
7b, 8b, 9b and 10b ON position of the relay
contacts
11 Ground command to switch the relay to “a”
position - OFF position
12 Ground command to switch the relay to “b”
position - ON position
13 Electronic call input from PRS240
SERVICE MODULES
1471. RELAY UNIT
A low voltage, low current (DC/AC) unit, it can
switch voltages up to 50V and 5A max. Used
for auxiliary services (e.g. stair lights, call for 4
or more bells, door release etc).
It can be installed on DIN bar or with two screws.
In housing DIN bar 3 modules A.
Technical data
Power supply:
13Vac; 12÷24Vdc
Current consumption: 0.05A
Number of exchanges: 1
Switching current:
5A (50V)
Housing:
DIN 3 modules A
Operating temperature:
0° ÷ 50°C
Maximum permissible humidity: 90% RH
Terminals
1
Alternate current input 13Vac-dc
2
Continuous current input 21Vdc
3
Negative half-wave input or ground
5
Common contact of relay
6
Normally open contact of relay
7
Normally closed contact of relay
6
7
5
1
2
3
1472. 2-CONTACT RELAY UNIT
Same as 1471, but with 2 relays and 9S input
terminal.
Technical data
Power supply:
13Vac; 12÷24Vdc
Current consumption: 0.05A
Number of exchanges: 2
Switching current:
1A (24V)
Housing:
DIN 4 modules A
Operating temperature:
0° ÷ 50°C
Maximum permissible humidity: 90% RH
Terminals
In addition to terminals of art. 1471 you find:
11 Common contact of relay 2
12 Normally open contact of relay 2
13 Normally closed contact of relay 2
9S Electronic call input with resistive load
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Ground
3
"
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65
2
"
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54
3
"
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89
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9
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"
4
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3
70
65
1471E. RELAY UNIT
Same as 1471, but with 9S, 9T and 9P input
terminals. In housing DIN bar 4 modules A.
Terminals
In addition to terminals of art. 1471 you find:
9P Electronic call input without resistive load
9S Electronic call input with resistive load
9T Electronic call input timed operation (1 sec.)
-
Ground