ATT Digital Magic On Hold Tape Deck Dmoh Installation Manual

							  AT&T DMOH 
  Connecting a Power Supply 
  Connect the output plug from the power supply to the 12V AC/DC jack on the rear
panel of the unit. Plug the power supply into any convenient 110V AC outlet.
 
  Connecting to the Telephone System 
  Use the audio patch cord terminated with an RCA plug (included) to connect the LINE
600 ohm or 1 WATT output to the telephone systems music-on-hold (MOH) input.
Refer to page 9 for wiring connections. All MOH connections should be per the
specific telephone system (Merlin, Partner, etc.) requirements.
 
  Connecting an External Speaker 
  The 1 WATT output RCA jack can be used to power an external speaker. The output
provides 1 watt into 8 ohms. The LINE 600 or 1 WATT outputs can also be used to
feed the input of a loudspeaker systems amplifier.
 
  Loading Cassette Tape 
  Use the following procedure to load a Magic On Hold cassette tape.
 
· Set the sampling rate/memory capacity using the MODE switch on the underside
of the unit.
· Place the POWER switch in the ON position. The red POWER indicator will
illuminate.
· Be sure the SPEAKER switch is in the on position (if desired), and set the VOLUME
control between its minimum and maximum positions
· Open the tape compartment door and insert the cassette tape. The tape direction
is indicated on the compartment door. Close the tape compartment door.
The unit rewinds the cassette tape (if necessary) and then begins to play. It plays
(preview) approximately 5 seconds of the audio message and then stops (the
RECORD and PLAY indicators do not illuminate during the preview). The tape heads
then retract for approximately 5 seconds following the preview, allowing you to
remove the cassette, if desired. If you do not remove the cassette, it rewinds and the
message downloads into digital memory (the RECORD indicator illuminates when
downloading starts). Adjust the volume for comfortable listening level during
downloading and play. 
						

							AT&T DMOHImportant Notes:
1. The downloading process starts when audio signal is sensed, ensuring that
memory capacity will not be consumed during tape leader travel or for a delay of
the audio recording.
 
2. The audio RCA outputs do not operate during the downloading process.
Recording stops (and the RECORD indicator will go out) when 4 seconds of silence
has elapsed following the recording, or when memory capacity is exceeded, or when
the cassette tape reaches the end of its travel. After the message has been
downloaded, the cassette automatically rewinds, and should be stored in the tape
compartment for reloading after power outages.
Following the downloading process, the message will play continuously (the PLAY
LED will illuminate). To properly adjust the volume level for telephone message
output, the following steps should be followed:
· Slide speaker monitor switch to off position.
· Connect the unit to the telephone system through the LINE 600 ohm output or 1
WATT output, refer to page 9 for system wiring connections. If telephone system
has MOH volume control, set it to approximately 1/2 output level.
· Place a call to your telephone from another telephone.
· Place the calling telephone on hold.
· Adjust DMOH volume control to obtain a comfortable listening level. If level is
not acceptable, adjust telephone system MOH volume. 
						

							AT&T DMOHOptional External Trigger OperationExternal Trigger Operation is not required for most AT&T MOH
Applications
The unit can be set for single-play operation, activated by an external trigger. (Note:
the PLAY LED on the front panel illuminates only during digital playback.)
The TRIG mini-jack on the rear panel accepts a mono or stereo mini-plug, as shown
in the illustration below. When the plug is inserted, the unit automatically switches
to the single-play mode. (If the trigger is inserted during the playback, the message
will play through to the end and then stop.)
The external trigger offers two modes of operation: If the contacts are closed and
then opened within 5 five seconds, the message will play completely and then stop
(any further contact closure action at the trigger is ignored until the playback is
complete). If the contacts are closed for more than five seconds, playback will stop
when the contacts are opened and the unit will return to its idle state.
If a stereo mini-plug is used, the middle ring and barrel provides 0V DC or 5V DC
level which can be used to indicate unit status: The 0V DC level indicates digital
playback operation; 5V DC indicates the unit has stopped playing the message.
(Note: the signal is for monitoring purposes only and can not be used to directly
operate external equipment.) 
						

							AT&T DMOHTroubleshootingPower LED does not light - Check power supply connection. Turn Power switch On.
Tape plays too fast - Remove cassette and tighten up any slack in the cassette.
Output too low or sounds distorted over telephone - Readjust volume or change
type of output used. Some telephone systems also have a volume control for the
MOH system; this may also require adjustment.
Cannot remove cassette because head is engaged - Turn power off and then on.
Wait for head to retract then remove cassette.
Unit does not preview or download cassette - The DMOH is not compatible with
CrO2 tapes. You must use a proper AT&T Magic On Hold cassette.
Tape does not load properly or drive mechanism continues to spin with the tape in
place - can be caused if an endless-loop tape is inserted into the unit. Do not use
endless-loop tapes.
Unit fails to download or message is very saturated - Check the temperature at the
units location. If it is below freezing, let the  unit settle at room temperature and try
again.
Care and MaintenanceThe impact-resistant housing and quality construction of the DMOH virtually
eliminates the need for service or maintenance.
If the tape drive mechanism receives extensive wear, the tape head, capstan, and
pinch roller can be cleaned with isopropyl alcohol using a cotton-tipped applicator. 
						

							AT&T DMOHWiring ConnectionDigital Magic On Hold Tape Deck
TELEPHONE
SYSTEMMUSIC ON HOLD CONNECTION (See
Note)OUTPUT
MERLIN(R)206,410,82
0PAGING CARTRIDGE #6102-MHPA1 WATTMERLIN 1030/3070SERVICES MODULE #61320A1 WATTMERLIN II
MERLIN LEGENDMUSIC COUPLER #61398A-THROUGH
LOOP START TRUNK PORT600 OHMMERLIN PLUSBUILT INTO CONTROL UNIT (MOH JACK)1 WATTPARTNER(R) II
PARTNER PLUS
SPIRIT(R)BUILT INTO CONTROL UNIT (MOH JACK)600 OHMSystem 25TIP/RING CIRCUIT PACK ZTN-78
(#62504A) or ANALOG LINE CIRCUIT
PACK TN742 (#63111A) KIT-OF-PARTS
D-181575 (#62513)1 WATTSystem75/ DEFINITY
GenericAUX.TRUNK CIRCUIT PACK
TN763B(#63118A) 36A COUPLER
(#65235)600 OHM 
						

							MERLIN, PARTNER, & SPIRIT are Registered Trademarks of AT&T
MAGIC ON HOLD is a Service Mark of AT&T
Note: Connect the Magic On Hold unit to the telephone system per the telephone system installation instructions for
Music-On-Hold.