142
(MT11 - Gb2012)
1282E. AUDIO-VIDEO TIMER.
Connected to the stabilized power supply
art.1281, it allows a video intercom system to
be timed (50 seconds).
It also allows time to be increased during a
conversation (3 minutes), automatic power OFF
at the end of the conversation; switching ON of
one monitor at a time. By adding the intercom-
municating module art.1443E on the proper
connector, an intercommunicating service with
privacy towards the external station is obtained.
Technical data
Turn ON time: -50 sec. with handset replaced
-3 min. with handset lifted
Operating temperature 0°÷+50°C
Maximum permissible humidity 90%RH
Housing DIN 6 modules A
Terminals
IV Logic command output of timing 0/5Vdc
X Auxiliary voltage output 12Vdc-0.2A
A Alternate voltage input-output 13Vac-1.6A
F Ground
H Timed positive voltage input-output 18÷21Vdc-
1A max.
4 Control switching ON input from the monitors
7.5Vdc-8mA
5 Command for door lock release command
3mA
S Alternate Voltage for door lock release 13Vac-
1A max
1D Transmitter audio channel input 5Vdc-20mA
2D Receiver audio channel input 1.5Vdc-20mA
3D Audio ground
C+Electronic ringing generator for calls from ex-
ternal station 12Vpp-0.25A
7 Electronic ringing generator for intercommu-
nicating calls 12Vpp-0.25A
1 Transmitter audio channel output 5Vdc-20mA
2 Receiver audio channel output 1.5Vdc-20mA
3+ Positive voltage output 8Vdc-0.1A
1281. STABILIZED POWER SUPPLY WITH
SWITCHING REGULATOR.
Connected to the timer art.1282E, allows to
drive at low voltage a monitor (or 2 in parallel in
FLAT type), a camera unit with a solid state
sensor (CCD), electric door lock, name plate
lights, etc.
Technical data
Input voltage 127 or 220-230Vac
Frequency 50/60Hz
Power 48VA
Operating temperature 0°÷+40°C
Maximum permissible humidity 90%RH
Housing DIN 8 modules A
Weight 0.95Kg.
Approved VDE according to safety stan-
dard EN60065
Terminals
A Output voltage 13Vac for:
-name plate light, exchangers and timer (con-
tinuous service 0.6A)
-electric door lock and bells (intermittent ser-
vice 1A)
- Ground
+ Continuous output 21Vdc-1A (timed opera-
tion)
I Logic command input from timing
0 = activated
+5Vdc = non activated
Notes
- The power supply is not provided with fuses,
but all of its outputs are protected against
overloading and short circuiting by tempera-
ture sensors. To reset the power supply, power
must be cut OFF for about one minute and
can be restored after having eliminated the
problem.
- The power supply must be installed in a dry
place and can be fixed on DIN bar or on a wall
by using the expansion plugs.
- The connection between power supply 1281
and timer 1282E must not to be longer than
25cm.
1281E. AUDIO-VIDEO POWER SUPPLY-
TIMER.
It allows to power in timed way (about 100
seconds) a videointercom installation with elec-
tronic call. Moreover it allows to switch-ON one
monitor at a time and to switch it OFF at the end
of the timing.
Technical data
Input voltage 127 or 220-230Vac
Frequency 50/60Hz
Power 48VA
Operating temperature 0°÷+40°C
Maximum permissible humidity 90%RH
Housing DIN 8 modules A
Weight 0.95Kg.
Approved VDE according to safety stan-
dard EN60065
Terminals
A Output voltage 13Vac for:
-name plate light, exchangers and timer (con-
tinuous service 0.6A)
-electric door lock and bells (intermittent ser-
vice 1A)
- Ground
H Timed positive voltage input-output 18÷21Vdc-
1A max.
F Ground
X Auxiliary voltage output 12Vdc-0.2A
4 Control switching ON input from the monitors
7.5Vdc-8mA
5 Command for door lock release command
3mA
S Alternate voltage for door lock release 13Vac-
1A max
C+ Electronic ringing generator for calls from
external station 12Vpp-0.25A
3+Positive voltage output 8Vdc-0.1A
Notes
- The power supply is not provided with fuses,
but all of its outputs are protected against
overloading and short circuiting by tempera-
ture sensors. To reset the power supply, power
must be cut OFF for about one minute and
can be restored after having eliminated the
problem.
- The power supply must be installed in a dry
place and can be fixed on DIN bar or on a wall
by using the expansion plugs.
POWER SUPPLY AND CONTROL UNIT
4+1
INTERCOMS *
7+1
VIDEOINTERCOMS
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