RDL FLAT-PAK Series Manual

FLAT-PAK ™
Model FP-MR1
Message Repeater
ANYWHERE YOU NEED...
• Repeating Single Voice-Band Message
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Up to One Minute Digital Message Storage
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External Message Actuation
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Interval Timer to Repeat Message Playback
• Background Music Input
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Automatic Voice-Over or Music Ducking
You Need The FP-MR1!
APPLICATION: The FP-MR1 is a message repeater that permits electronic storage of a single recording up to one minute
in duration. This message may be played back manually using an external contact closure to ground or using the
front-panel START button. The message may also be played back periodically using the interval timer included in the
FP-MR1. A balanced line-level music input allows background music to be connected and the associated input
potentiometer allows the installer to set the music level. When message playback is triggered, the music is faded down. At
the conclusion of the message, the music level fades back up. A front-panel DIP switch sets the music to fade under the
message (-20 dB nominal) or completely off. The module output level is a nominal +4 dBu balanced. The output level is
indicated on an RDL dual-LED VU meter which is used to set the proper music and recording levels.
The message is normally recorded once, at installation, then played back repeatedly. The message may be re-recorded at
any time and is retained when power is removed from the module. The recording input is a standard consumer level
unbalanced phono jack. An input level trimmer is provided to set the correct recording level which is indicated on the
dual-LED meter when the module is set to the RECORD ENABLE mode on the front-panel DIP switch. An integral AGC
circuit maintains the recording level within 6 dB over 20 dB input variations without significant audible effect on the signal
dynamics. The module begins recording when the START button is pushed and continues until the button is released. A
RECORD LED is illuminated during recording.
Precision active analog filtering insures conversion and storage of high quality sound for voices or other sounds in the range
of voice frequencies. The normal noise artifacts of narrowband digital recording and playback are removed in a unique RDL
noise gate integral to the FP-MR1. This circuit allows full frequency response and dynamics for voice-band program
material while extending the playback noise floor to –70 dB. In the unlikely event this circuit conflicts with the playback of
any particular sounds, it may be bypassed using a front-panel DIP switch. The MUSIC input is full range.
Playback may be activated by a remote momentary closure to ground or using the internal interval timer. The external
trigger causes the message to play each time the terminal is grounded. A DIS (disable) terminal is provided to prevent the
module from ducking the music audio and playing the message. As long as the DIS terminal is grounded, the module will
not play. When released, the module will play the next time it is triggered either externally or internally. Grounding the DIS
terminal while a message is playing will abort the playback. While the module is playing, the PL (playing) output terminal is
held low. This terminal is used to control other equipment, and is particularly useful for disabling another FP-MR1 in
installations where FP-MR1s are connected in series for multiple repeated announcements. At the conclusion of each
playback, the EOM (end of message) terminal pulses to ground for 100 mS. This terminal may be used to trigger other
equipment or additional FP-MR1 module playback. The internal interval timer is controlled by front-panel DIP switches. The
time between messages is selected in 30 second increments from 30 seconds to 7.5 minutes. The selected interval is set to
x1 or x8 for a maximum time of 60 minutes.
Used alone or in conjunction with other RDL RACK-UP
can be the foundation for many innovative audio systems!
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RDL 659 N. 6
SERIES
th
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St. Prescott, AZ., USA 86301
® ®
, STICK-ON , TX™, or FLAT-PAK series products, the FP-MR1
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(928) 443-9391 FAX (928) 443-9392
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www.rdlnet.com