The FP-CH8 is an electronic chime generator that produces eight different synthesized chimes. Each chime can consist of up to 3 tones and 3 harmonics selected to produce sonically natural effects. Certain chimes are single tones and some are a sequence. Each of the 8 chimes is triggered by an individual external closure to ground. A momentary closure to ground is required to start a chime. A single additional CONT (continuous) terminal is also provided. Each chime plays once unless the CONT terminal is grounded. The continuous function causes a chime strike or sequence to repeat until the CONT terminal is ungrounded. This function causes tone chimes (Chimes 4 and 8) to be extended in duration until the CONT terminal is released. Background music or paging audio may be connected to the MUSIC IN input. When a chime plays, the music source will be quickly faded to a level set on the front-panel DUCKING trimmer. The ducking fade depth may be adjusted from 0 dB to fully off, allowing chimes to be mixed with the music or to interrupt the music. The front-panel CHIMING indicator illuminates while music is ducked and a chime is playing. WAIT and IGNORE terminals are provided to prevent or delay chiming action.
Chime patterns are: single strick, double strick, triple strick, tone ring, manual strick, descending triple strick, eurosiren and multi-tone alert.
8 Individually Selectable Electronic Chimes
Selectable Single or Repeated Chime
Synthesized Bell Harmonics for Natural Sound
External Chime Actuation
Input for Background Music or Paging Audio
Automatic Ducking
Music Input:
50 kO balanced or unbal, +22 dBu max.
Frequency Response:
20 Hz to 50 kHz (+/- 0.5 dB)
THD+N:
< 0.05% (unity gain, 50 Hz to 20 kHz)
Noise below +4 dBu:
< -70 dB (unity gain)
Headroom:
> 16 dB (above +4 dBu)
Gain:
Unity to +22 dB (adjustable)
Ducking Fade Depth:
0 dB to fully off (adjustable)
Outputs:
150 O balanced, + 4 dBu or 75 ? unbal.
Trigger Inputs (8):
Trigger on high to low transition, 0.5 mA
Control Inputs (3):
WAIT (play delay), IGNORE (no playback), CONT (continuous repeat)
Control Outputs (2):
CHIMING (Open-collector low @ 25 mA), EOC (low 100 mS at end of chime)
Power Requirement:
GROUND-REFERENCED 24 to 33 Vdc @ 100 mA
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