Valcom V-2904 Service Manual

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.

These instructions contain the specifications and information necessary to install, operate and maintain the Universal Four Door Answering System.

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.

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:

• Reorient the receiving antenna

• Relocate the equipment with respect to the radio

or television

• Move the equipment further away from the radio or television

• Plug the equipment into a different branch circuit

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.

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

Power Supply

FIGURE 1 - SIMPLIFIED BLOCK DIAGRAM OF A TYPICAL INSTALLATION

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

Up to 4 Locations

• 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.

Position the remaining screws and fasten through the remaining mounting slots. Tighten screws.

Connections

NOTE: The V-2904 could be used with equal success at a doorway, gateway, window, secure room or combination of these just to name a few possible applications. The term station is used to designate a location. Station 1 is used when describing connections; all other stations would be connected similarly. Refer to Figure 2 for pinouts of the specific station location.

Mount a 66B-type punchdown block on the backboard near the V-2904 Universal Four Door Answering System and label the block per Figure 2.

Move slide switch SW2 on the V-2904 to the appropriate location, Loop or Ground Start, (see Figure 3) depending on how the V-2904 is accessed.

If a modular cord is used for Tip and Ring connections, start at step ONE. For 66 block connections start at step TWO.

___ 1. Connect one end of the modular cord to the

V-2904 RJ11 and the other end to the appropriate line position of the phone system. Go to step 3.

___ 2. Connect Tip of the key system line position,

loop or ground start trunk, to Pin 26 (W/BL) and Ring to Pin 1 (BL/W).

___ 3. Connect Tip of Zone 1 45 Ohms talkback

speaker to pin 32 (R/O) and Ring to pin 7 (O/R).

___ 4. If using a door button with the Zone 1

talkback speaker, connect normally open, single pole push button switch to Door Button 1 connection pin 33 (R/G) and pin 9 (BR/R) Ground. (Figure 5 depicts a typical speaker/door button hookup).

___ 5. Move slide switch SW1 (located on the

V-2904 board) to the ON position if the telephone system is to ring when the door

button is pressed. (Refer to Figure 3 for

location).

___ 6. Connect the -24VDC power supply. -

24VDC should be connected to pin 25 (S/V) and Ground connected to pin 50 (V/S). The power LED located on the V-2904 board should illuminate.

Battery Backup

A Valcom VPB-260 Battery Backup may be added to the system to provide power in case of power failure. The VPB-260 plugs directly into the V-2904. Figure 4 shows the appropriate connection. The VPB-260 should be allowed to charge for approximately 9 hours before operating the V-2904. The Valcom

VPB-260 battery backup may be used as the sole supply of power to the V-2904.

Remote Door Unlock Relay

Figure 6 shows the V-2904 contact arrangement available for electric strike plate operation.

Before connecting an electric lock to the V-2904, consult the manufacturer instructions for the proper connecting arrangement.

Remote Push Button for Manual Door Release

A momentary, normally open, single-pole, single-throw switch can be connected to the system. Suggested pinouts to the 66B-type block are shown in Figure 7. Again, refer to manufacturer instructions for proper connections. The remote button should be placed in an inconspicuous location to provide a more secure system.

NOTE: If the remote button does not respond, you have most likely entered a confirmation press. Additional presses will result in an alarm condition.

Handsfree Indicator ("Station Outputs")

The V-2904 supplies connections to allow handsfree indicators to be connected to the system. No indication is available during All Call. During handsfree communication, with station 1, pin 6 goes to -24VDC when connected as shown in Figure 8. Maximum current available is 50mA. Other station outputs react in a similar manner.

FIGURE 2 - BLOCK CONNECTIONS

Tip Ring Common Audible Make Common Audible Stationary Common Audible Break Unauthorized Door Opening Background Music Tip Background Music Ring Door 1 Unlock Make Door 1 Unlock Stationary Door 1 Unlock Break Station 1 Handsfree Speaker 1 Tip Handsfree Speaker 1 Ring Door Button 1 Remote 1 Door Sensor 1 Ground 1 Door 2 Unlock Make Door 2 Unlock Stationary Door 2 Unlock Break Station 2 Handsfree Speaker 2 Tip Handsfree Speaker 2 Ring Door Button 2 Remote 2 Door Sensor 2 Ground 2 Door 3 Unlock Make Door 3 Unlock Stationary Door 3 Unlock Break Station 3 Handsfree Speaker 3 Tip Handsfree Speaker 3 Ring Door Button 3 Remote 3 Door Sensor 3 Ground 3 Door 4 Unlock Make Door 4 Unlock Stationary Door 4 Unlock Break Station 4 Handsfree Speaker 4 Tip Handsfree Speaker 4 Ring Door Button 4 Remote 4 Door Sensor 4 Ground 4 Power Supply GND Power Supply -24VDC

W/BL BL/W W/O O/W W/GR GR/W W/BR BR/W W/S S/W R/BL BL/R R/O O/R R/G G/R R/BR BR/R R/S S/R BK/BL BL/BK BK/O O/BK BK/G G/BK BK/BR BR/BK BK/S S/BK Y/BL BL/Y Y/O O/Y Y/G G/Y Y/BR BR/Y Y/S S/Y V/BL BL/V V/O O/V V/G G/V V/BR BR/V V/S S/V

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