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.

An integral AGC circuit maintains the recording level within 6 dB over 20 dB input variations without significant audible effect on the signal dynamics. An external disable terminal is provided. An open-collector output terminal is low when a message is playing. An additional output signals end of message (EOM).

Features:

• Repeating Single Voice-Band Message
• Up to One Minute Digital Message Storage
• External Message Actuation
• Interval Timer to Repeat Message Playback
• Background Music Input
• Automatic Voice-Over or Music Ducking

Typical Performance:

• Music Input: 50 kO balanced or unbal, +16.5 dBu max.
• Frequency Response: 20 Hz to 100 kHz (+/- 0.5 dB)
• THD+N: < 0.01% (unity gain)
• Noise below +4 dBu: < -80 dB (unity gain)
• Gain: Off to +18 dB (adjustable)
• Voice Input: 20 kO unbalanced, -20 dBV to 0 dBV
• Frequencey Response: Limited within voice band (100 Hz to 3 kHz)
• Noise below +4 dBu: < -70 dB (noise gate enabled)
• Output: 150 O balanced, + 4 dBu or 75 O unbal.
• Control Outputs (2): PLAYING and EOM, Open-collector @ 50 mA
• Control Inputs (2): TRIG and DISABLE, Pull to ground, 0.5 mA
• Power Requirement: GROUND-REFERENCED 24 to 33 Vdc @ 60 mA

Dimensions:

• Height: 1.36 in.
• Width: 3.25 in.
• Length: 5.0 in.