Status output led – Gilderfluke&Co Sd-25 Audio Repeaters w/Amplifier User Manual

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When the Sd-25 plays a triggered SoundFile or a
timed announcement (using modes 16, 17 or Store-
Caster mode) the status output will go active. This is
wired into an input on the Sd-10 which has been
configured to duck, or fully mute its audio output. In
this way, the Sd-10 will duck (or mute) the BGM
SoundFile (without stopping it) while the foreground
SoundFile plays.

ʻBackgroundʼ looping SoundFiles, like those in
modes 16 and 17 will not turn on the ʻStatusʼ output.
When in these modes, the ʻStatusʼ output will only
be turned on when a triggered SoundFile is playing.
In StoreCaster mode, the ʻStatusʼ output will only be
turned on when playing SoundFile #1.

In a safety related application, such as a fire or
emergency annunciator system, the safety system
can monitor this output to confirm the Sd-25 is re-
ceiving commands and playing SoundFiles. For ab-
solute surety, you can monitor that this output goes
active when a SoundFile is triggered, and goes inac-
tive at the end of the SoundFile.

Status Output LED:

The LED which is next to the ʻStatusʼ output does
not reflect the current state of that output. Instead, it
flashes to show accesses to the MMC/Sd flash card
by the Sd-25.

This LED will flicker when a Sd-25 boots, as it
counts each SoundFile on the card

. When not play-

ing, it will be very dim. While playing, it will flicker at

a high rate of speed. The faster the flicker, the
higher your SoundFileʼs bit rate.

Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485

The speed at which the Sd-25 counts the SoundFiles is perhaps the best indication of how ‘fast’ a SD flash card is. Fast cards will count up to ten SoundFiles

each second. Slower cards may only count one SoundFile per second.