Viking dva-3003 Service Manual

Telecommunication Peripheral Products

DVA-3003

3 Channel Digital
Voice Announcer

Technical Practice

June 19, 2001

3 Channel Long Play Digital Announcer

The DVA-3003 is a
professional and cost-effective three channel
digital voice announcer specifically designed for ACD/UCD, hotel-motel wake up, auto
attendant, intercept, night message, information applications and other announcement
functions.

The DVA-3003 will increase call handling capacity by answering on demand or during
the first ring, automatically adjusting the announce cycle to the message length,
disconnecting on C.P.C. and providing instant “rewind” for the next caller.

The DVA-3003 is factory installed with 1 minute of record time per channel and may be
expanded to 4 minutes per channel using the ERAM-60 one minute memory expansion
kits. In applications where a single, longer message is required, the DVA-3003 can

VIKING©

also be configured as a single channel 3 to 12 minute announcer.

http://www.VikingElectronics.com

Features Applications

• Record time expandable from 1 to 4 minutes per
channel

• Configurable as a 3-12 minute 1 channel
announcer

• Record and review announcements both locally
and remotely

• Tape jack to load prerecorded announcements
from a tape player

• Record 1, 2, or all 3 channels simultaneously

• Programmable ring delay for each channel

• Detects C.P.C. signal and disconnects

• Callers may be transferred after announcement

• Messages stored in Non-volatile memory (no
batteries required)

• Recognizes handshake signals from virtually
any PABX, Centrex or C.O.

• Provides both “Ring Trip” and 4 wire “E & M”
interface

• Recording volume level LED indicator for
consistently high-quality recordings

• One year warranty

Repetitive Announcing for:

• School closings

• Wake-up calls

• Movie theaters

• Ski reports

• ACD/UCD or any announce only application where a
message is repeated continuously and may require
frequent updating.

• College events and schedules

• Bank rates/commodity prices

• Help desks

• Night Message

Specifications

Power: 120V AC/12V DC 500mA UL listed adapter provided or
power from 48V DC 0.1 A maximum

Dimensions: 480mm x 200mm x 45mm (19” x 8” x 1.75”)
Shipping Weight: 3 Kg (7lbs)
Environmental: 0° to 32° C (32° to 90° F) with 5% to 95% non-

condensing humidity
Message Length: 1 minute/channel, field expandable to 2, 3, or 4
minutes/channel using model ERAM-60 memory kits in (1) minute
increments

Sampling Rate: 64 Kbps (equivalent)
Connections: Standard ring-trip with adjustable ring delay, 4-wire

E & M with 600 ohm audio and switch selectable protocol

Installation

A. 120V AC Operation

The DVA-3003 is provided with a 120VAC U.L. listed adaptor with a 12VDC 500mA output. The DVA-3003 requires a
24 hour unswitched 115VAC outlet. To protect the internal electronics, the installation of a surge protector is
recommended.

B. 48VDC Operation

Connect -48VDC and Earth Ground to the terminal block as shown below. Nominal current draw is less than 100mA.
If a power supply protection fuse is used in series with the -48V supply, a 500mA slow blow fuse is recommended.
The initial start up current can surge as high as 600-700mA.

BUSY

Dry contact closure for “E &
M” busy signal or “A” Lead
control
for “ring trip”.

Earth GND (+) 6
M Lead (Start) 5
Tip (600 ohm) 4

CHANNEL 1

600 OHM

E & M

CO/PABX

LINE

Channel 1 ring trip

interface

Connect to “Ringing”

C.O. or PABX line.

1 - 48V
2 E Lead (Busy)
3 Ring (600 ohm)

PROGRAMMING

PORT

Connect to “ringing”
C.O. line or PABX
ext. for remote
recording and
programming when
using “E & M”
interface. If “Ring
Trip” interface is
used, channel 1 or
the Programming
Port may be used.

PROTOCOLS

5 6 7 8

E & M

USE ONLY LISTED

SOURCE 12VDC, 500mA

ON

OFF

MAX

or

48V GND

- 48VDC

Earth GND

(+)

CLASS 2 POWER

POWER

VIKING ELECTRONICS HUDSON WI. 54016

120V AC

Channel 1 four wire E & M interface

Programming

A. Standard Ring Trip Interface (Two Wire)

Any ringing C.O./PABX line will be answered, given an announcement and released. The DVA-3003 is then
immediately ready to answer the next incoming call. Set the front panel DIP switches to RING TRIP for each channel
using “Ring Trip” Interface, then momentarily disconnect power. *

B. Continuous Play 4 Wire E & M Interface

Set the front panel DIP switches to E & M for each channel using E & M Interface. Set “E & M protocols” DIP
switches to “A” (DIP switches 5 and 6 off). Invert the START signal (DIP switch 7 on). *Momentarily disconnect the
power. The announcement will be repeated continuously on pins 3 and 4 (600 ohm output).

C. 600 Ohm 4 Wire E & M Protocols

First set the front panel DIP switches to E & M for each channel using E & M Interface, then momentarily disconnect
power.* Four different protocols are now switch selectable for changing E & M timing, plus the ability to invert the
START and/or BUSY signals.

Front Panel DIP Switches

Channel

1 2 3

E & M

Ring

Trip

Single

Channel

* A momentary power down allows the DVA-3003 to read the new DIP switch settings.

2

ON

Rear Panel E $ M Protocols DIP Switches

SW 5 SW 6

PROTOCOL “A” OFF
PROTOCOL “B” OFF
PROTOCOL “C” ON
For future use ON

SW 7 Inverted START signal when “ON”
SW 8 Inverted BUSY signal when “ON”

OFF
ON
OFF
ON

E & M

Protocols

ON

OFF

5 6 7 8

D. 600 Ohm 4 Wire E & M Protocol Timing Specifications

1. “ON DEMAND”. Set DIP switches to protocol “A” (SW 5 and SW 6 - OFF).

Contact from PABX

GND screw terminal
or pin 6 on DVA-3003

Busy output

Earth

from DVA-3003

GND

2. TYPE 5 E & M, WINK START. Set dip switches to protocol “B” (SW 5 - OFF, SW 6 - ON).
Contact from PABX

GND screw terminal
or pin 6 on DVA-3003

Busy output

Earth

from DVA-3003

GND

3. DRUM RECORDER REPLACEMENT. Set dip switches to protocol “A” (SW 5 and SW 6 - OFF).

Pin 5
Start

GND screw terminal
or pin 6 on DVA-3003

Pin 2

Busy output

Earth

from DVA-3003

GND

4. SINGLE PLAY ON DEMAND. Set dip switches to protocol “C” (SW 5 - ON, SW 6 - OFF).
Contact from PABX

GND screw terminal
or pin 6 on DVA-3003

Busy output

Earth

from DVA-3003

GND

Pin 5
Start

Idle/open

Pin 2
Idle/closed

In Use

Pin 5
Start (M)

Idle/open

Pin 2
Wink (E)

Idle/closed

O
M

*

Pin 5
Start

Idle/open

Pin 2
Idle/closed

In Use

600ms

(Programmable)

Announcement B

250msec. min.

250msec. max.

Announcement Duration

600ms

(Programmable)

Announcement

B
O
M

*

B

Announcement B
O
M

*

250msec. max.

Announcement

M

E

O

B
O
M

*

*

O
M

*

250msec.

min.

Announce
ment

GND (+)
M Lead (START)

Open

GND (+)
E Lead (BUSY)

Open

GND (+)
M Lead (START)

Open

GND (+)
E Lead (BUSY)

Open

GND (+)
M Lead (START)
(Connected to
earth GND)

GND (+)
E Lead (BUSY)

Open

GND (+)
M Lead (START)

Open

GND (+)
E Lead (BUSY)

Open

*NOTE: BOM = “Beginning Of Message” pulse. EOM = “End Of Message” pulse.

E. Using the DVA-3003 with Major PABX’S

Set Front Panel DIP Switches

Manufacturer

ATT (Dimension,

Horizon, etc.
4 Wire E & M)

ATT (System 75)

to:

E&M

E&M

Protocol Dip

Switches

Protocol A

with inverted busy signal

ON

OFF

5 6 7 8

Protocol A

with inverted busy signal

ON

OFF

5 6 7 8

Notes:

* Earth ground is the positive of the PABX system talk battery

Use 4 Wire E & M Interface. Connections: T & R to pins 3 & 4, M to pin 5, E to pin
2 and Earth Ground* to GND screw terminal.

Use 4 Wire E & M Interface and BUSY screw terminals. T & R to pins 3 & 4, SZ
to pin 5, SZ1 to GND screw terminal, and S and S1 to BUSY screw terminals.

3