fp-ch8 DTR (en)
Model FP-CH8
Chime Generator
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
You Need The FP-CH8!
APPLICATION: 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 set for 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 the music is ducked and a chime is playing.
Chime patterns are described as follows:
1: Single strike
5: Manual strike
2: Double strike
6: Descending triple strike
3: Triple strike
7: Eurosiren
4: Tone ring
8: Multi-tone alert
A chime is activated by a remote momentary closure to ground. The external trigger causes the chime to play each time the
terminal is grounded. Single chime patterns (Chimes 1, 4 and 5) will restart immediately if they are re-triggered. This allows
a pushbutton to initiate repetitive strikes. If the FP-CH8 receives trigger inputs for sequential chime patterns
(Chimes 2, 3, 6, 7 and 8) while any chimes are playing, up to 3 such trigger requests will be stored. Following the chime that
is playing, the module will play the stored chime requests in the order received with 2 seconds between each chime
playback. If a stored chime request was accompanied by a simultaneous closure of the CONT terminal, that chime will play
continuously for 5 seconds.
A WAIT terminal is provided to prevent the module from ducking the music audio and playing the chime. As long as the
WAIT terminal is grounded, the module will not play, but up to 3 chime requests will be stored. Upon release of the WAIT
terminal, each chime request is played in the order received with 2 seconds between chimes. If a stored chime request was
accompanied by a simultaneous closure of the CONT terminal, that chime will play continuously for 5 seconds. An IGNORE
terminal is also provided. When the IGNORE terminal is grounded, all incoming chime triggers are ignored. Grounding the
IGNORE terminal while a chime is playing will abort the event. While the module is chiming, the CHIMING output terminal is
held low. This terminal is used to control other equipment or modules. At the conclusion of each chime, the EOC
(end of chime) terminal pulses to ground for 100 mS. This terminal may be used to trigger other equipment or modules.
Used alone or in conjunction with other RDL RACK-UP®, STICK-ON®, TX™, or FLAT-PAK series products, the FP-CH8 can
be the foundation for many innovative audio systems!
RDL • 659 N. 6th St. • Prescott, AZ., USA 86301 • (928) 443-9391 • FAX (928) 443-9392 • www.rdlnet.com
Model FP-CH8
Chime Generator
EN55103-1 E1-E5; EN55103-2 E1-E4
Typical Performance reflects product at publication time
exclusive of EMC data, if any, supplied with product.
Specifications are subject to change without notice.
Music Input
Input Signal:
Maximum Input Level:
Frequency Response:
Noise below +4 dBu:
Ducking Level:
Control Terminals
Input Configuration:
Trigger Inputs (8):
Control Inputs (3):
Output Configuration:
Control Outputs (2):
Output Signal:
Power Requirement:
50 kΩ balanced or unbalanced
-20 dBV (unbalanced) to +4 dBu (balanced)
+22 dBu
20 Hz to 50 kHz (+/- 0.5 dB)
< 0.05% (unity gain, 50 Hz to 20 kHz)
< -70 dB (unity gain)
> 16 dB (above +4 dBu)
Unity to +22 dB (adjustable)
Unity to fully off (adjustable)
Pull to ground, 0.5 mA
Trigger on high to low transition
WAIT (play delay), IGNORE/Abort (no playback)
CONT (continuous repeat of triggered chime)
Open collector @ 100 mA
CHIMING (low when chiming),
EOC (low 100 mS at end of chime)
150 Ω balanced or 75 Ω unbalanced
+4 dBu nominal
24 to 33 Vdc @ 100 mA, Ground-referenced
NOTE: This equipment has been tested and found to
comply with the limits for a Class B digital device, pursuant
to part 15 of the FCC Rule. These limits are designed to
provide reasonable protection against harmful interference
in a residential installation. The equipment generates,
uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions,
may cause harmful interference to radio communications.
However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception,
which can be determined by turning the equipment off an
on, the user is encouraged to try to correct the
interference by one or more of the following measures:
Reorient or relocate the receiving antenna
Increase the separation between the equipment
and receiver
Connect the equipment into an outlet on a circuit
different from that which the receiver is
Consult the dealer or an experienced radio/TV
technician for help.
Width: 3.25 in. (8.26 cm)
Length: 5.00 in. (12.70 cm)
Height: 1.36 in. (3.46 cm)
Radio Design Labs Technical Support Centers
U.S.A. (800) 933-1780, (928) 778-3554; Fax: (928) 778-3506
Europe [NH Amsterdam] (++31) 20-6238 983; Fax: (++31) 20-6225-287
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