FP-MR1 Message Repeater

The FPMR1 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 frontpanel START button. The message may also be played back periodically using the interval timer included in the FPMR1. A balanced linelevel 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 frontpanel 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® dualLED 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 rerecorded 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 opencollector output terminal is low when a message is playing. An additional output signals end of message (EOM).