Valcom V-2904 Manual de Usario

Valcom sistema de intercomunicación V-2904

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Issue 7

V-2904

UNIVERSAL FOUR DOOR ANSWERING SYSTEM

INTRODUCTION

The V-2904, Universal Four Door Answering

System, when used with Valcom Door Plate

Speakers, provides voice paging with handsfree reply

to up to four doors from any telephone location. The

V-2904 initiates ring-in on the telephone system and

sends a confirmation tone to the door speaker. The

individual at the phone responding to the signal will

determine if access should be allowed. Pressing a

programmed code on the telephone dialpad or

pressing the remote button will unlock the door to

allow admission. The V-2904 also provides an alarm

control output to alert an unauthorized entry.

• Reorient the receiving antenna

• Relocate the equipment with respect to the radio

or television

These instructions contain the specifications and

information necessary to install, operate and maintain

the Universal Four Door Answering System. • Move the equipment further away from the radio

or television

• Plug the equipment into a different branch circuit

FCC Notice

This equipment generates and uses radio frequency

energy and if not installed and used properly, that is,

in strict accordance with the instructions listed in this

User's Manual, may cause interference to radio and

television reception.

NOTE: The manufacturer is not responsible for

any radio or TV interference caused by

unauthorized modifications to this equipment.

Such modifications could void the user's authority

to operate the equipment.

It has been tested and found to comply with the limits

for a Class B Computing Device in accordance with

the specifications in Subpart B of Part 15 of the FCC

rules, which are designed to provide reasonable

protection against such interference in a residential

installation. If this equipment does cause interference

to radio or television reception, which can be

determined by turning off the equipment and seeing if

the interference stops, the user is encouraged to try

and correct the interference by one or more of the

following measures:

SPECIFICATIONS

Access

• Electronic Key Systems

• PABXs

• 1A2 Key Systems

• Stand Alone Systems

Refer to Figure 1 for a simplified block diagram of a

typical installation.

1 947304

E-Key

C.O.Line

Position

V-2904

Universal

Four Door

Answering

System

Doorplate

Speaker

with

Pushbutton

Up to 4

Locations

FIGURE 1 - SIMPLIFIED BLOCK DIAGRAM OF A TYPICAL INSTALLATION

Power

Supply

Features

• Compatible with PABX, E-Key and 1A2

telephone

• Switch selectable - loop or ground start access

• Provides handsfree talkback to four separate

locations

• RJ11 modular connector for Tip and Ring

connections

• Power ON LED

• Provides contacts for up to four circuits

• Programmable options:

Programming access code

Ring Pattern

Station Identification

Activate lock relay

Duration of lock relay activation

Time door can remain open after unlock

(exit delay time)

Entry delay time

Number of ring cycles

Disable station alarm

Alarm disable code

Station alert tone

• Input for manual door unlock (push button)

• Built-in 30Hz ring voltage generator with on/off

switch

• Ringback tone to speaker

• Calls can be placed On Hold

• Call waiting

• One-way all call with volume control

• Background music input with volume control

• Speaker to phone volume control

• Phone to speaker volume control

• Simultaneous calls placed in queue

• Dial tone

• Confirmation tone

• Compatible with tone dial phones

• Works with Valcom V-1072A doorplate speaker

or other Valcom one-way or talkback speakers.

• Compatible with VPB-260 battery backup

Dimensions/Weight

Dimensions: 8.60" H x 11.00" W x 2.30" D

(21.84cm H x 27.94cm W x 5.84cm D)

Weight: 3.1 lbs. (1.41 kg)

Nominal Specifications

Input Impedance: 600 Ohms

Input Level: -10dBm Nominal

Output Impedance: 45 Ohms

Ring Supply: 90VAC, 30Hz

Suitable for REN of 5.0

Power Requirements

Power Supply: -24VDC filtered

600mA minimum

Environment

Temperature: 0 to 40°C

Humidity: 0 to 85% (non-precipitating)

Components

The following equipment is recommended when

using the V-2904:

• 1 - V-2904 Universal Four Door Answering

System

• 1 - C. O. Line Position (Electronic Key

System); 1 - Loop Trunk Position (PABX) or 1 -

400 type line card (1A2 key)

• 1 - Dedicated single line phone*

• 1 to 4 Valcom Doorplate Speaker(s)**

• 1 - VP-624B Power Supply

* A single line telephone cannot be connected to

both the V-2904 and an incoming central office

line.

** It is recommended that one talkback speaker

be used per door station. Use of more than one

talkback speaker per station may result in damage

to the V-2904. Up to 40 one-way amplified

speakers may be connected to a zone if the zone is

to be used as a one-way paging zone.

DESIGN

The V-2904, Universal Four Door Answering System

was designed to provide voice paging with handsfree

reply to up to four door speakers from a telephone

location. The V-2904 initiates ring-in on the

telephone system and sends a confirmation tone to the

door when a button is pressed at the door (Valcom

doorplate speakers are normally used in this

application). The individual at the phone responding

to the signal can converse with the person at the door

and determine if access should be allowed. If the

door is equipped with an electric strikeplate, the

person at the phone can enter a programmed code on

the telephone dial pad or press a remote button to

unlock the door to allow admission. When the system

is in use and another call is placed from a different

station, the person on the telephone will hear a call

waiting tone corresponding to that door location.

(Example: Beep-Beep for Station 2). The call will

remain waiting for a programmed period of time. If

this additional call remains unanswered, it will drop

off after the programmed period of time for call

waiting.

The V-2904 provides an alarm control output for

unauthorized entry. When the door lock relay is

activated and the door remains open longer than the

programmed period of time, a ground potential will

appear on pin 3 of the V-2904 (unauthorized door

opening) that can be used to signal a customer

provided alarm, auto dialer, etc. Also, if the phone is

on hook, the phone will begin ringing in a pattern

designating which door failed to close. (Example:

Station 3 - ring-ring-ring). If the phone is off hook,

any activity the phone is involved in will be

terminated and the phone will receive a momentary

warble tone, a station indication tone, the ringback

tone and be connected to the station with an open

door. After hangup, if the door is not closed, the

alarm condition will continue. If another

unauthorized entry is detected, it will override the

older one. When this new alarm condition is

resolved, the system will revert to the previous alarm

condition until all alarm conditions are resolved.

When indication arrives that a door is open while

door station is inactive, such as a break-in, the system

waits the programmed period of time (entry delay

time) for a confirmation of entry indicating the

opening as legitimate. When this does not arrive in

the programmed time frame or if it arrives and the

door is not closed at the end of the programmed time

period, an alarm will sound in the same manner as

described above.

The V-2904 also provides a background music input

and is designed to automatically cut off at individual

stations during a page or during an alarm situation. If

background music is to be installed, a low level music

source such as the Valcom V-2952 FM Tuner will be

required.

Another feature of the V-2904 is the All Call Page.

By pressing the number "8" or "0" on the telephone

dialpad, the person at the phone can make a one-way

announcement to all stations. The All Call is also

overridden during an Alarm Condition.

INSTALLATION

Cabling

A 25 pair cable with a female amphenol connector

should be run from the V-2904 to a 66B-type

punchdown block. The cables should be terminated

on the connecting block in standard color code.

Refer to Figure 2 - Block Connections for the

suggested pinout locations.

Mounting

The V-2904 is designed to be wall or shelf mounted.

When wall mounting the V-2904, secure the unit to

wall studs or a suitable brace, away from heat sources

or strong magnetic fields (motors, fans, power

supplies, etc.) with controls and connectors

accessible. (A plywood backboard 2 feet square and

at least 1/2 inch thick attached to wall studs would be

considered a suitable brace).

Four #10 x ¾ inch flat-head wood screws are

included for mounting. Fasten two screws on the

mounting surface, allowing them to protrude 1/8 inch

to ¼ inch. Place the chassis of the V-2904 onto the

screwheads at the mounting slots.

Especificaciones del producto

Marca:	Valcom
Categoría:	sistema de intercomunicación
Modelo:	V-2904

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