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Power Up System
Plug the power cord into the A.C. input connector on
the MDMU, then into the wall oulet.
The MDMU will display three messages in sequence:
MDMU 2.00
Software version of unit.
3.16
Total time available in memory for
recording.
IDLE
Indicates the status MDMU: Idle = no
activity; PLY = A message is being
played out through connector J1; Delay =
the time delay between successive
messages is active.
Push the Battery slide switch to the ON position.
1
2
NOTE: The internal battery
maintains the recorded
messages two hours in the
event of a power failure or
brownout. Allow 48 hours to
fully charge.
The MDMU is now ready to record and play meassages.
If power is to be removed from
the MDMU for an extended
period of time, turn the battery
switch to the Off position to
avoid permanent damage to
the battery.
REM
OPTION
BATTERY
SWITCH
OFF ON
NOTE: The suggested reliable
lifetime of the rechargeable
battery used in the equipment
is 36 months. To ensure the
system has reliable battery
backup, it is recommended
the battery be replaced every
30 months.
Figure 7 Battery Switch
6