Pag. 45
Technical
General diagram for Video door phone installations in a building with two accesses.
So we call P1 the "at rest" panel and P2 the "activated"
panel.
To take the switcher to the "activated" position, the current
on the common wire of Cp is made to pass through the
pushbutton common P2 and through the activations
terminals I-K in the switcher. The current on the common
wires of P1 to pass through the activation terminals H-J
would force it into the "rest" position. However, the switcher
will change from "activated" to "at rest" once 90 seconds
have passed.
OBSERVATIONS
Conversations held through the "activated" panel are to 90
seconds or until a call is made from the other panel, while
conversation through the "at rest" panel will only ended if
there is a call from the other panel.
SCHEMATIC DIAGRAM
BASIC FUNCTION
Pushing a button on the outdoor panel causes the call signal
Cp1, generated in the amplifier, to be sent pasing along the
call wire to the corresponding monitor, wich produces the
typical tremolo call tone.
Upon picking up the handset, a switch connects the moni-
tor to the common audio wires (2 & 6) thus establishing
communication with the outdoor panel from where the call
was made.
Upon pressing the door release button on the monitor the
amplifier activates the electric lock. The automatic switcher
has two positions: "at rest", its normal position, and
"activated".
P1 is the panel wich is connected to the monitors when the
automatic switcher is in the "at rest" position, whilst P2 is
connected when the switcher is in the "activated" position.
MATERIAL NEEDED
In the dwellings
M1, M2, ...Mn CityMax Export Monitor Ref.: 8023 (do not forget the connector Ref. 8033)
D2.1, ..., D2.n Vídeo Distributor Ref.: 2448 ó 2449 (depending on the distribution)
In the communal interior area
A7 Distributor Power Supply Ref.: 88231
A3 Video Power Supply Ref.: 88302 (one Power Supply every 60 monitors)
A6 Video Switcher Ref. 8812
In the street
P1 Outdoor Panels (combination neccesary.Do not forget telecámara Ref. 8028)
F1 Electric lock Ref.: 2911 (for other types consult catalogue)
E 2.3 VIDEO PHONE SYSTEM
BUILDING WITH TWO ENTRANCES
To make things clear, the wiring diagram is divided in two
sections which are presented together: ENTRANCES and
FLOORS.
Two types of FLOOR diagram are shown: distribution in 2
or 4 dwellings per floor.
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