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10. In order to extract the monitor from the frame, put a slotted screwdriver under the frame edge and lever
it.
2
WIRINGS
On the bracket there is a terminal block that allows the wiring of the following signals:
1:
System ground
3:
Monitor positive power supply
A:
Negative video input
B:
Positive video input
E:
Auto-power on monitor
C:
Speech signal, call and door lock release input
T:
Input for ringer power supply for fl oor call or, alternatively, input for monitor power on without
ringer activation with negative signal
P:
Floor call input (positive voltage)
LD:
Red led available on the monitor to signal call exclusion
LD_PA: Red led available on the monitor to signal open door
M:
Input / output to turn on two monitors in parallel
Q1, Q1: 24V 0,5A NO free contact
Q2, Q2: 24V 0,5A NO free contact
Q3, Q3: 24V 0,5A NO free contact
For monitor correct operation, connect the wires following the diagrams enclosed to the used video group.
1-3-A-B-C wires must absolutely be connected for the system correct operation.
Auxialiary connections description.
All the connections described below are used for some monitor auxiliary functions.
•
P terminal pin will be used if the the fl oor call function is required. In this case it must be connected to
the fl oor call button (see system diagrams).
•
T terminal pin must be connected to a column positive power supply, if it is needed to use the fl oor call
function. If the fl oor call function is not used, the terminal pin allows to turn the monitor on without
activating the ringer, by supplying a –12V voltage between T and 1, when on the terminal pin 3 there is a
+20V voltage.
•
E terminal pin, if connected, allows to turn the monitor and the camera on by pressing the button marked
by "•", present on the monitor. The function is available only if no other monitor is active.
•
Q1 and Q1 terminal pins make available the normally open clean contact of "A" button, that is on the
monitor. It can be used to activate the command of stair lights, cameras, electric gates, etc...
•
Q2 and Q2 terminal pins make available the normally open clean contact of "B" button, that is on the
monitor. It can be used to activate the command of stair lights, cameras, electric gates, etc...
•
Q3 and Q3 terminal pins make available the normally open clean contact of "B" button, that is on the
monitor. It can be used to activate the command of stair lights, cameras, electric gates, etc...
•
LD terminal pin makes available the red led present in the speech button of the monitor. The red activation
10
1
3
is made by bringing a positive voltage referred to the system ground ("1"). It allows to signal the call
exclusion set in the monitor by the call attenuation switch. When the monitor is on, the same led will light
up in green, superseding the call exclusion signal, if present.
•
LD_AP terminal pin makes available the red led present in the door lock release button of the monitor. The
red activation is made by bringing a positive voltage referred to the system ground ("1"). When the monitor
is on with active speech signal, the same led will light up in green, superseding the open door signal, if
present.
PRESETTING
Termination: SW1 slider switch allows to select the video signal input impedance. Default position L selects
low impedance (75 Ohm typically). In position H the selected impedance will be high (47 kOhm).
To change the position of this switch, remember that it depends from the system type where the monitor will
be mounted:
•
Position L for systems with SD55 junction box on fl oor (in case of buildings with many fl ats...)
•
Position L for systems for one family (point to point installation)
•
Position H for systems with more than one monitor and without junction box on fl oor. These are systems
defi ned as "in/out", where the video signal connection wires must arrive directly on the monitor terminal
pins A and B, and then go from the same terminal pins to the next monitors.
In this confi guration, on each terminal pin "A" and "B" of the last monitor it is needed to put one
termination resistor connected to "1" terminal pin (ground):
Conversation privacy: the jumper PRIVACY allows to add or exclude the audio conversation privacy. With the
jumper on "OFF" (default setting) the conversation privacy is excluded. By enabling the monitor speech signal,
it will possible to talk with the door unit.
With the jumper on "ON" the conversation privacy is active. It will be possible to talk with the door unit only
after receiving a call.
Hands-free: to exclude the monitor "hands-free" function and to force the user to keep the "Speech" button
pressed during all the conversation, cut the JP1 jumper.
DS90360-003
DS90360-003
1
1
3
2
75 Ohm
75 Ohm
A
3
VIDEO
B
4
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