ATT Digital Magic On Hold Tape Deck Dmoh Installation Manual

							Digital Magic On Hold SM Tape Deck
Model DMOH
Installation and
Operation InstructionsMagic On Hold is a Service Mark of AT&T
Issue 1, 12/2/91
Printed In U.S.A. 
						

							Limited Warranty and Limitation of LiabilityAT&T warrants to you that the product will be free from defects In material
and workmanship when title passes to you. If you notify AT&T that the
product has failed to operate as warranted within one year of the date title
passes to you, AT&T will, at its option, repair or replace the component or
components of the product that failed to operate as warranted. Any repair or
replacement components may be new or refurbished and will be provided on
an exchange basis. If AT&T determines that the product cannot be repaired
or replaced, AT&T will refund the purchase price to you.
If you purchase the product directly from AT&T, AT&T will perform warranty
repair on your premises in accordance with the terms and conditions of
AT&Ts Business Day or Around-the-Clock warranty plans. The details of
AT&Ts warranty plans may be  obtained from AT&T. If you purchased the
product from an authorized dealer, you will  be covered by AT&Ts
authorized dealer plan during the warranty period. Contact your authorized
dealer for details of AT&Ts authorized dealer warranty plan. AT&Ts
obligation to repair, replace or refund as set forth above is your exclusive
remedy.
The limited warranties provided above do not cover damages, defects,
malfunctions or product failures caused by:
· Failure to follow AT&Ts installation, operation or maintenance
instructions;
· Unauthorized modification or alteration of the product or its
components;
· Product abuse, misuse or the negligent acts of persons not under the
· reasonable control of AT&T;
· Actions of third parties and acts of God other than power surges (e.g.,
lightning).
 
  This limited warranty applies only to the product purchased directly from
AT&T or purchased directly from an authorized AT&T dealer. This limited
warranty does not apply to products purchased or operated outside the
United States.
 
  You may be required to provide AT&T with proof of purchase before AT&T
will perform any warranty replacements.
 
  EXCEPT AS SPECIFICALLY SET FORTH ABOVE, AT&T, ITS AFFILIATES,
SUPPLIERS AND DEALERS MAKE NO WARRANTIES, EXPRESS OR IMPLIED, AND
SPECIFICALLY DISCLAIM ANY WARRANTY OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE.
 
  EXCEPT FOR PERSONAL INJURY, THE LIABILITY OF AT&T, ITS AFFILIATES,
SUPPLIERS AND DEALERS FOR ANY CLAIM, LOSS, DAMAGE OR EXPENSE FROM
ANY CAUSE WHATSOEVER, REGARDLESS OF THE FORM OF THE ACTION,
WHETHER IN CONTRACT, TORT OR OTHERWISE, SHALL NOT EXCEED THE
LESSER OF DIRECT DAMAGES PROVEN OR THE REPAIR OR REPLACEMENT
COST OF THE SYSTEM OR THE SYSTEMS PURCHASE PRICE. IN NO EVENT 
						

							SHALL AT&T, ITS AFFILIATES, SUPPLIERS AND DEALERS BE LIABLE FOR
INCIDENTAL, RELIANCE, CONSEQUENTIAL OR ANY OTHER INDIRECT LOSS OR
DAMAGE (INCLUDING LOST PROFITS OR REVENUES SUSTAINED OR INCURRED
IN CONNECTION WITH THE SYSTEM). THIS LIMITATION OF LIABILITY SHALL
SURVIVE FAILURE OF THE EXCLUSIVE REMEDY SET FORTH IN THE LIMITED
WARRANTY ABOVE.
  
						

							  
  Digital Magic On Hold (SM) Tape Deck
  Model DMOH
 
  Installation and
  Operation Instructions
 
 
  To Order Copies of This Manual 
  Call:Your AT&T Information Systems Sales Representative
 or
 Your Business Sales and Service Center
 1-800-247-7000
 or
 The AT&T Customer Information Center
 1-800-432-6600
 
  Write: AT&T Customer Information Center
 P.O. Box 19901
 Indianapolis, IN 46219
 
  Order: Digital Magic On Hold Tape Deck
 Model DMOH
 Installation and Operation Instructions
 Issue # 1
 
  For Technical Assistance 
  AT&T provides a toll-free customer helpline 24-hours a day. In the USA, call
the AT&T Helpline at 1-800-628-2888 for assistance. In Canada, call one of
the following Technical Assistance Centers for service or technical assistance:
  Eastern Canada and Ottawa:1-800-363-1882
  Ontario:1-800-387-4268
  Central and Western Canada:1-800-663-9817 
						

							 
  FCC Notice 
  This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of FCC rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
— Reorient or relocate the receiving antenna.
— Increase the separation between the equipment and receiver
— Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
— Consult the dealer or an experienced radio/TV technician for help.
 
  Specifications 
  Sampling Method:  Adaptive Delta Modulation (ADM)
  Sampling Frequency (Switch
Selected):  32/45 Kilobits/sec.
  Message Length (Switch Selected):  3 or 4 minutes
  Power Required:  12V AC/DC. Power supply included with
the unit provides 12VAC @ 800mA from
11OVAC source
  External Speaker Power:  1 Watt into 8 ohms
  Input:  High-quality Magic On Hold cassette-
tape. Fully automatic operation
  Output:  LINE 600-ohms/transformer-balanced via
RCA phono jack; 1Watt into 8-ohms via
RCA jack (can be used to power an
external speaker)
  Controls:  POWER on/off switch; SPEAKER on/off
switch; VOLUME control (for monitor
speaker, 1WATT and LINE output jacks);
TRlG(ger) jack for single play operation
  Indicators:  LEDs for POWER, PLAY and RECORD
  Mounting:  Desk-top or wall-mounting, template and
hardware included
  Dimensions:  7-7/8 x 6-3/8 x 3-1/4
  Shipping Weight:  3 lbs.
  Cassette Tape:  Magic On Hold - AT&T Customized
Programming Service
  
						

							 
  Table of Contents 
  Introduction ...............................................................................1
  Front Panel Features ....................................................................2
  Rear Panel Controls and Connectors ...........................................3
  Installation & Operation ..........................................................4
  DMOH Package Contents..............................................................4
  Unpacking and Inspection............................................................4
  Installation Precautions................................................................4
  Installation Procedure...................................................................4
  Select Memory Capacity ......................................................4
  Connecting a Power Supply .................................................5
  Connecting to the Telephone System .................................5
  Connecting an External Speaker..........................................5
  Loading Cassette Tape.........................................................5
  Optional External Trigger Operation ...................................7
  Troubleshooting .........................................................................8
  Care and Maintenance...............................................................8
  Wiring Connection......................................................................9
  
						

							  AT&T DMOH 
  Introduction 
  The AT&T Digital Magic On Hold (DMOH) Tape Deck plays a digitally recorded Magic
On Hold announcement over the message-on-hold bus of most telephone systems.
To obtain Magic On Hold customized cassette programs call your AT&T account
executive or 1-800-247-7000.
 
  To operate, place a cassette tape in the tape compartment. The unit automatically
plays (previews) a portion of the audio program over its monitor speaker, and then
pauses so that you can change tapes if desired. If you leave the cassette in the
compartment, the message is recorded (downloaded) into digital memory. The
digitally-stored message then plays continuously (it can be set for single-play
operation). Solid-state operation results in less wear of the tape and tape drive
mechanism, increasing reliability and performance.
 
  The DMOH unit has two sampling rates, which determines the maximum recording
times (shorter record time provides the highest quality playback sound). The unit
can record 3 minutes or 4 minutes, 20 seconds total. The unit features:
· Automatic downloading, with preview function, from a Magic On Hold cassette
tape
· Automatic reload after power outage
· High reliability with no tape wear or maintenance problems
· Choice of 600-ohm Line output or 1 Watt (8-ohm) output
· Built-in monitor speaker with on/off switch
· Volume control (for monitor speaker,600-ohm/1 -Watt outputs).
· One time play capability (triggered by external contact closure)
 
  To change a message, simply insert a new cassette. The new message is previewed
and then automatically downloaded. Once a message has been loaded, the cassette
rewinds and remains in the tape compartment. Then, if the power goes out, or if you
turn your system off, the message is automatically reloaded once power is restored.
 
  The unit provides 600-ohm and 1-watt output jacks for connection to the music-
on-hold (MOH) bus of a telephone system, external speaker, or public address
system. The unit mounts easily on a wall or shelf and comes complete with wall-
mounting hardware, an audio patch cord, stereo mini plug, and 12 VAC power
supply which can be plugged into any convenient 110V AC outlet.
 
  
						

							  AT&T DMOH 
  Front Panel Features  
  Cassette Tape Compartment  High-quality cassette tape drive mechanism accepts a Magic On Hold cassette tape.
Cassette tape direction indicator is shown on the compartment door.
 
  LED Indicators  For POWER, PLAY, & RECORD. PLAY illuminates only while the digitally stored
message is playing. It goes out when recording (downloading) and between
playbacks during single-play operation.
 
  Monitor Speaker  Lets you monitor the tape during the preview and downloading process, and when
the unit is operating. An on/off switch is included on the rear panel (SPEAKER).
  
						

							  AT&T DMOH 
  Rear Panel Controls and Connectors 
 
 
   APOWERTurns power on. The memory is erased when the switch is off.
   B12V AC/DCJack accepts 12V AC or DC power to the unit. The power supply
  provides 12V AC @ 800mA from a 110V AC source.
   CLINE 600600-ohm output to the MOH input on a telephone system or to a
  loudspeaker system.
   DSPEAKERTurns monitor speaker on or off.
   E1 WATTRCA jack provides 1 Watt @ 8 ohms.
   FVOLUMEControls output level of the monitor speaker and the 1WATT and LINE
  600 jacks.
   GTRIG External trigger jack for single-play operation. Accepts a mono or
stereo
 mini-plug (you can monitor system operation when a stereo mini-
plug is used).
    
						

							  AT&T DMOH 
  Installation & Operation 
  DMOH Package Contents· Digital Magic On Hold unit (Comcode: 406659342)
· Power Supply
· Cassette Tape, Generic (Comcode: 406659359)
· Audio Patch Cord
· Stereo Mini-Plug
· Wall Anchors
· Installation & Operation Instructions
· Mounting Template
· Customer Card
 
  Unpacking and Inspection 
  The DMOH unit was carefully checked at the factory. Inspect the carton and unit for
signs of damage. If damage is found, notify the location from whom the unit was
purchased. If the unit was shipped to you directly, notify the transportation company
without delay if it is damaged or fails to operate correctly. Save the carton and all
packing material as evidence of damage for their inspection.
 
  Installation Precautions 
  Observe the following installation precautions:
· Do not install the unit in damp areas, or in areas where it is likely to be exposed
to rain or moisture.
· Do not install the unit in areas where the ambient temperature is likely to go
below 40ø F or exceed 90ø F.
· Do not place the unit on other equipment which produces high heat,
uncomfortable to the touch.
· Use suitable fasteners on hollow walls or other similar thin materials. Plastic
screw anchors are included.
 
  Installation Procedure 
  Select Memory Capacity 
  A MODE switch on the underside of the unit sets the maximum memory capacity. Set
to 3/6 position for highest sound quality. Set to 4/8 position for extended memory
capacity of 4 minutes, 20 seconds. The unit only acknowledges changes in memory
capacity on power-up or cassette changes.