V-Tec VIDEO DOOR PHONE SYSTEM Manual descargar pdf (Pagina 229)

EASIVOICE SYSTEM ELECTRONIC INTERCOM SYSTEM

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EASIVOICE

DOOR PHONE - VIDEO DOOR PHONE SYSTEMS: Installation Diagrams

Mod. 926

ELECTRONIC INTERCOM SYSTEM Mod. 926

FUNCTIONS

FEATURES

The power supply 926/3 is set for a medium system of 25 intercoms

(926/1). In case of systems with more intercoms, connect more power

supplies in parallel, up to 4 max. In this case follow carefully the

system schemes.

TECHNICAL DATA

• Electrical characteristics

Transformer power: 38 VA

Powering: 110/230 ~

Secondary voltages:

11.5V 0.6 A

24V 40 mA max.

24V 10 mA max.

• Powering 11.5 V section:

It supplies powering to the intercoms and max. current of 600 mA;

• Phonic line powering section:

It includes 5 identic circuits. Each circuit supplies a constant current

of about 30 mA with max. voltage of 24 V;

• Data output:

It supplies a voltage of 24 V with a resistance series 2.2 K Ω per data

wire.

• Ampliﬁ er output:

On this output the signal coming from the 5th phonic line is injected

and it is uncoupled by means of condenser. The output circuit

includes two schottky diodes with a 150 Ω resistance in parallel.

• Operating temperature: 0° C ÷ 40°C

• Dimensions:

Length: 162 mm

Thickness: 75 mm

Width (with side protections): 108 mm

Width (without side protections): 90 mm

Weight: 0.950 Kg

Connections: by means of terminals with clamping screw

FUNCTIONS

All functions can be activated through the 12-key alphanumeric keypad

located on the base of the intercom:

The key located on the upper right of Mod. 926/2 is used for opening

the door. Other functions (clearing a line, general call) can only be

performed from authorized (enabled) intercoms. The activation of

these functions can only be done during the programming phase.

Please consult the chapter on programming for further information.

SINGLE CALL

Caller

To talk to another intercom station:

• Lift the handset.

• Dial the TWO DIGIT number of the other-party.

• Listen for the tone and observe the led:

• Ringing tone: wait for the called party to answer.

• Busy tone and led off: the number called is engaged → try again

later or activate the automatic redial function or the clear the line

function (if authorized).

• Busy tone and led on: the 4 telephone lines are engaged → try

again later.

Called Party

When the phone rings, lift up the handset and begin the conversation.

At the end of the conversation, if the called party hangs up the handset

123

789

R0F

NOTE:

R = Redial

F = Follow-me

the intercom is disconnected from the line and it will communicate, on

the data line, the end of the conversation to the caller who, in his turn,

will disconnect his intercom physically and logically from the line. The

handset will be mute until the hanging up.

On the contrary, If the caller hangs up the handset, he will free the line,

physically and logically, and he will communicate to the called party

the end of conversation. This last one, in his turn, will disconnect the

intercom physically.

A conversation cannot last longer than 10 minutes in order to allow

other users access to the phone lines. Once this time has lapsed,

an acoustic “end-of-conversation warning” signal will be sent to both

intercom door phones.

The communication will be disconnected 10 seconds after the warning

signal.

REDIAL RESERVATION

Caller

If the number called is engaged, an automatic redial reservation can

be activated by pressing the “R” key before hanging up. Then listen for

the tone:

• No tone: automatic redial reservation was accepted → hang up.

• Persistent busy tone: automatic redial reservation was not accepted

because the number called already has an automatic redial reserved

onto its line from another intercom → hang up and try again later.

When the intercom door phone that was reserved to becomes free,

the caller who initiated the reservation will automatically receive a

call-back.

Attention: there will be situations in which the call-back will not take

place. These situations will be described in the “Called Party” section

below.

Called Party

During the course of a normal conversation, any reservations to the

line will be indicated by a blinking led on the intercom. The user who is

the subject of a reservation has two courses of action:

• He can decide “a priori” to eliminate the reservation by pressing the

“R” key either during the course of the conversation or immediately

after hanging up (within 5 seconds).

• He can decide to talk to whoever had reserved by hanging up and

waiting for the system to automatically set up the communication

and then for his intercom to ring.

If all of the phonic lines are not engaged, this will take place

within 5 seconds after hanging up. If, however, all the lines are

engaged, the system will attempt to establish the communication

every 15 seconds, up to maximum of 10 trials. The reservation will

be canceled if the tenth attempt was also unsuccessful.

CLEARING THE LINE

Caller (only from authorized intercom door phones)

Lift the handset and dial the number of the called party. If this party is

on the line (busy tone is heard and led is off), the line can be “cleared”

i.e. the conversation in course can be disconnected. To do so, simply

dial the special “00” number.

Conversation will be established with the cleared intercom door phone

within 20 seconds.

Called Party

A clearing request during the course of a normal conversation will be

identiﬁ ed both acoustically and visually (blinking led).

At this point, the called party will have 20 seconds in which to terminate

the conversation in course.

There are two possible courses of action:

• Hang up within 20 seconds. The intercom will ring and when the

handset is lifted, communication will be established with the caller

who had initiated the “clearing”.

• If the called party does not hang up within 20 seconds, he will be

disconnected from his current conversation and connected with the

caller who had requested the “clearing”.

The line clearing function WILL HAVE NO EFFECT on another

intercom which is also authorized to clear lines or if the intercom is in

communication with the outdoor station.

EASIVOICE

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