Elk products ELK-MV480 User Manual

ELK-MV480

400 Channel Recordable Voice Annunciator

Features

• 400 individually recordable and addressable message channels.

• 480 seconds maximum record time.

• Message channels are 1.2 seconds in length, however they may be combined for longer messages.

• Messages may be played using commands from a ELK-MM443 or MM447 Magic Module, a personal computer,
or many popular brands of controls and equipment which have an RS-232 or RS-485 serial port and are capable
of transmitting ASCII strings*.

• Up to 31 MV480 units may be networked over the RS-485 Data Bus.

• Messages may be recorded via a built-in microphone or they may be downloaded as .WA V files from a computer
using it’s sound card output and an ELK-129 sound card interface.

• 24 Watt built-in audio amplifier for driving multiple speakers.

• Two speaker connections.

• Adjustable volume control.

• Lifetime Limited Warranty, Call ELK or visit our website for details.

Specifications

• Operating Volt age: 10.25 to 15 V olts D.C., well regulated. Note: Low cost plug in DC power supplies may not
work due to AC hum present on the power supply . Recommended: ELK-624 Power Supply with ELK-1240
standby battery or ELK-P1216 regulated plug-in power supply .

• Maximum current draw at full volume: ~1.25 amps. Adjust volume for desired maximum current draw .

• Maximum output speaker load: 4 ohms.

• Data Bus: RS-485, max bus length: 4000 feet w/22 A WG wire, T wo dat a: A&B, T wo power: +12VDC & NEG.

• Type 4 Magic Module, Addressed from 1 to 31. Address 0 = global listen (non-acknowledged) address.

* Since the MV480 accepts RS485 data only, an RS232 to RS485 Data Converter (ELK-MB485) may be needed.

ELK PRODUCTS, INC.

PO Box 100 • 3266 US Hwy . 70 West

Hildebran, NC 28637 • USA

828-397-4200 • FAX [phone]

http://www.elkproducts.com Email: info@elkproduct s.com

L494 Rev 1.2 04/04

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OVERVIEW

The ELK-MV480 Recordable Voice Annunciator is the perfect companion for adding Voice and/or Sounds to the Magic Module
System. It offers superb quality, “tape less” voice/sound for applications in: home automation, access control, industrial control,
sales promotions, museums, waiting rooms, theme parks, etc. The MV480 may be used to issue instruction, greetings, or warning
messages automatically. There are 400 channels of words or phrases which may be played in any sequence or combination,
ensuring maximum versatility.

INSTALLATION and HOOKUP

1. Set the RS-485 Data Bus Address Jumpers. Each Voice Module must have a data bus address and multiple voice modules

connected to a single data bus must each be assigned a separate (individual) address. There are 5 plug-on DATA BUS ADDRESS
JUMPERS located along the top of the board. See Figure 1. Each jumper has a position of [0] or [1] and a binary value (1, 2, 4, 8,

16) which can be read directly above each jumper. The addition of the binary values (sum total) for jumper(s) set to the [1] position
determines the data bus address. For example: Data bus address 5 would be set by placing jumpers 1 and 4 in the [1] position (1
+ 4 = 5). All five jumpers are required to set the address, none can be missing.

2. Connect the four wires of the RS-485 Data Bus between the MV480 and the Magic Module or other device(s) involved with the
installation. For proper operation Data Bus “A” must connect to Data Bus “A” and Data Bus “B” must connect to Data Bus “B” on
other modules. The RS-485 Data Bus may be connected to either of these two locations:
A. Screw Terminals 2 & 3 – Terminal 2 is “A” side of the data bus, Terminal 3 is “B” side of the data bus.
B. Four pin header connector J2 – Pin 3 is “A” side of the data bus, Pin 2 is “B” side of the data bus.

3. Connect the Speaker(s): There are two sets of connections for 8 ohm speakers, SPKR1 and SPKR2. These connections are in
parallel to each other. If two speakers are connected then an effective 4 ohm speaker load is placed on the amplifier. Maximum
speaker load on the audio amplifier is 4 ohms. The speakers may also be wired in series to add more speakers to the system. Use
the Volume Control to adjust the speaker output level.

Application Note: To connect the Voice Module to a low level line input going into a paging system or an audio amplifier refer to
Figure 3. When using this connection adjust volume level to no greater than one quarter turn.

4. Connect the Power Supply: The unit must be powered from a well regulated 12VDC power source using any one of three
different locations on the printed circuit board.
A. J3 Power Connector – Accepts a 2.1mm ID x 5.5mm OD female plug cord “center pin positive”.
B. Screw Terminals 1 & 4 – Terminal 1 is + Positive and Terminal 4 is Negative.
C. Four pin header connector J2 – Pin 4 is +12VDC and Pin 1 is Negative.

INDICATOR LIGHTS, SWITCHES, AND MISC. CONNECTIONS

Playback Active LED (D7): This will light during message playback.
Playback Active SolderPad: This solderpad is pulled to ground by a transistor during message playback and may be connected to

an ELK-924 Relay to trigger other equipment. The maximum current draw at the solderpad is 50 milliamps.
Recording Input: (MIC & J1): Messages can be recorded by using the on-board microphone and record switch or by using the

optional ELK-129 Computer Sound Card Interface connected to J1 to play computer WAV files into the MV480.
Set MIC jumper to “IN” if using the on-board microphone to record messages. Set MIC to “OUT” if using the ELK-129.

Record Switch (SW1): To manually program utilizing the on-board microphone, press and hold this switch while speaking into the
microphone. NOTE: A record command must be issued from the Magic Module computer software. Momentarilly pressing this
switch (without a record command issued from the computer) will play back the last message recorded.

Record/EOM LED (D5): This will light during message recording.
Status LED (D6): This blinks when the Voice Module is in normal operation. Status LED will be lit continuously when a record

command has been received from the PC computer. The Status LED will return to blinking within 45 seconds if the record switch is
not pressed on the Voice Module.

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