feeds its audio into the
ʻ
mixer
ʼ
inputs of the first
Sd-
25
.
When the
Sd-25
plays a triggered SoundFile or a
timed announcement (if using modes 16, 17 or Sto-
reCaster mode) the
ʻ
Status
ʼ
Relay Output will go ac-
tive. This is wired into an input on the
Sd-10
which
has been configured to partially 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.
ʻ
Background
ʼ
looping SoundFiles, like those in
modes 16 and 17 will not turn on the
ʻ
Status
ʼ
Relay
Output. When in these modes, the
ʻ
Status
ʼ
output
will only be turned on when a triggered SoundFile is
playing. In StoreCaster mode, the
ʻ
Status
ʼ
Relay
Output will only be turned on when playing Sound-
File #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
ʻ
Status
ʼ
relay output
does not reflect the current state of the Status
Output Relay. Instead, it flashes to show accesses
12-24 vdc
Power
Level
Sd-
Left
Line In
Level
Line In
Level Level
Sd-
Right
Mixer
Right
Mixer
Left
Audio Repeater/Amp
Gilderfluke & Company
Burbank, California
Sd-25
w/DMX
B
Left
Right
Power
12-24
vdc
A
Trigger
Inputs
Speakers
(8
Ω
)
Running
Status
Audio
Repeater
Line Out
A
Inputs
Sd-10
9-24
vdc
B
Power
Right
Left
9-24 vdc
Burbank, California
Gilderfluke & Co.
to the Sd flash card by the
Sd-25
.
This LED will flicker when an
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 SoundFile
ʼ
s bit rate.
RS-232 Serial Port:
An RS-232 serial port is built in to every
Sd-25
. On
the earlier versions of the
Sd-25
, the serial port was
available only as an option (part #
The serial port on a
Sd-25
runs at a fixed rate of
9600 baud, n, 8, 1.
Adapters to attach this port to a PC or Mac are
available from Gilderfluke & Company as (as part
numbers
or
). It can
also be controlled from a Gilderfluke & Co.
Br-SDC/
09
(a null modem cable must be used to flip pins #2
and #3 when used with a
Br-SDC/09
).
The RS-232 serial port uses a
⅛
” (3.5mm) stereo
plug. The pinout to connect this to a standard DE-09
connector as found on a PC or our serial adapters is
as shown:
We offer a ready-made cable as our part number
When the
Sd-25
boots or a Sd card is inserted, the
Sd-25
will list all the SoundFiles that are found, as
well as the order after sorting them alphanumeri-
cally:
Rxd
Txd
gnd
IBM AT
S e r i a l
1
2
3
4
5
6
7
8
9
1
3
2
3.5mm Stereo
(ring)
(tip)
(sleeve)
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485
Sd-25 w/DMX Manual • page 17 of 32 • © September 4, 2014 • Gilderfluke & Co. • DCM
1
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.