Gilderfluke&Co Sd-25 User Manual

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

Audio Repeater

Sd-25

Gilderfluke & Company

Burbank, California

Left Right

12–24 vdc

Power

12–24

vdc

Running

Status

Level

Sd-

Left

Line InLevel Line In Level Level

Sd-

Right

Trigger

Inputs

Speakers

(4! to 8!)

Mixer

Right

Mixer

Left

Power Supply

12 to 24 vdc

Optional Line Level Source

Switch 'B'

Switch 'A'

Sd-25 Conﬁguration & Installation

! Before the Sd-25 can be used, you will need to load your SoundFiles onto a MMC/Sd flash card, attach a power supply, speakers, and (optionally) a switch to start the Sd-25. Selecting the operating mode will tell the Sd-25 how you would like your SoundFiles to be played.

MMC/Sd Card:

Any 3.3 volt Multi Media Card (MMC) or Secure Digital (Sd) ﬂash memory card can be used with the Sd-25. Starting with version 1.16 of the Sd-25 ﬁrmware, Sd HC cards are also supported. These will be available with capacities up to 2048 GBytes. As of this writing, Sd cards are available in sizes up to eight GBytes. These hold about 2000 typical Mp3 songs for about four days of continuous audio playback. The Sd-25 supports up to 255 SoundFiles in most operating modes. Some modes support up to 32,767 SoundFiles.

The ﬂash card should be formatted ʻFATʼ or ʻFAT32ʼ (it will probably come that way). The order in which the SoundFiles are placed onto the card is the order in which the Sd-25 will play them. You can load Mp3 and .wav ﬁles onto the card using a ﬂash card writer attached to a PC or Mac.

For the Sd-25s to recog- nize a SoundFile, its FileName must start with an alphanumeric character, and it must have the extension of either ʻ.wavʼ or ʻ.Mp3ʼ. If a SoundFile meets these criteria, the Sd-25 will attempt to play it. If the Sd-25 canʼt play a SoundFile for any reason, it will give up after about three seconds.

The Sd-25 will play just about all Mp3 or .wav ﬁle formats. Mp3 bit rates up through 320 Kb/second are supported. .wav ﬁles of up to 48 Kbytes/second

page 1 of 16 • © February 11, 2014 Gilderfluke & Co. DCM

and sixteen bit are supported. If a ﬁle does not play, it is most often caused by a large (more than 2

MBytes) ʻid3ʼ tag at its front. These typically

hold the album cover artwork for ﬁles downloaded from iTunes and similar sources. Since a Sd-25 canʼt use album artwork, it

simply takes up additional storage space,

delays the time it takes a SoundFile to start playing, and (in the worst case), will keep a SoundFile from playing at all. Most audio programs (including iTunes) have an option to delete ʻid3ʼ tags.

Speaker Outputs:

The Sd-25ʼs ampliﬁer is a ʻClass-Dʼ design. Its efﬁciency is near 90%. If you feed 50 Watts of 24 vdc into the Sd-25ʼs ampliﬁer, you will get almost 50 Watts into your speakers. ʻLinearʼ ampliﬁers have only about

20% efﬁciency. Fully 80% of

the power you put into them goes into the heatsink as waste heat. A 50 Watt linear ampliﬁer

would only feed 10 Watts of

power into your speakers, and 40 Watts into the heatsink. This makes the Sd-25ʼs ampliﬁer roughly

equivalent to what would be

a 200 Watt linear ampliﬁer!

If you are going to run your speakers at high SPLs, you will need to select speakers that can handle at least a 125 to 150 Watts or more of continuous power. Speakers smaller than this may clip or be damaged if run at too high an output power level from the Sd-25.

The ampliﬁer outputs from the Sd-25 can be used with speakers of four to eight ohms impedance. As with any ampliﬁer, you can series/parallel a number

Running

Status

Inputs

Switch ‘b’

External power for Switches & Status

Battery

Left

Switch ‘a’

Power

9-24 vdc

Right

Speakers

Left

ʻBridgedʼ

Speaker

Connections

Br-MiniBrick4

Gilderfluke & Co.

Burbank, California

012

RecordGoData

Trigger

9-24 vdc

Outputs

Triggering from a

Control System

Inputs

Sd-10

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

Sd-25

of speakers, so long as the impedance remains within limits.

If your speaker seems to clip out at an unusually low level, it may be that the speaker protection circuitry inside the crossover is confused by the digital output of the Sd-25ʼs ampliﬁer. If this is the case, we have a small ﬁlter module available that can smooth the signal the speaker receives.

The Sd-25ʼs ampliﬁer is well protected from short circuits and overheating. You can stick a screwdriver right across the speaker terminals, and the Sd-25ʻs ampliﬁer will go back to work an instant after a fault is removed. If the speaker impedance is too low and you are running at a high volume level, the ampliﬁer may start to cut out. If you hear this, check the power supply voltage. If the input voltage is dropping, you might simply be drawing too much power for the power supply and a larger supply may ﬁx your problem. If the power supply is OK, and you canʼt increase the speaker impedance, then you might simply be asking too much of the Sd-25ʼs ampliﬁer, and need to turn down the volume a tad.

If you wish to comply with FCC and CE standards for radio frequency emissions, you should use shielded speaker wires with the Sd-25. The shield should be attached to the power supply ʻnegativeʼ terminal, which is immediately adjacent to the speaker terminals. This will not affect the sound quality from the Sd-25, but will make the FCC and CE folks happy. Shielded speaker lines were used during all CE/FCC certiﬁcation testing.

Bridged Ampliﬁer: If you need a mono output with more ʻoomphʼ, the ampliﬁer in the Sd-25 can be ʻbridgedʼ. Bridging will only have an effect with lower impedance speakers You wonʼt hear a bit of difference if you are using an 8 ohm speaker. The only audio which is ampliﬁed comes from the ʻleftʼ sources (mixer and repeater). The wiring to ʻbridgeʼ

the ampliﬁer is a little different than on a

linear ampliﬁer. The speaker is wired in

parallel to both speaker outputs, and the

jumper inside the Sd-25 is moved to the

ʻbridgedʼ position. Wiring the speak- ers for a ʻbridgedʼ output without

moving this jumper can damage the

Sd-25ʼs ampliﬁer.

Trigger Inputs:

The trigger inputs can be used with any

switch. This can be a pushbutton, motion detector, IR beam, step mat, a digital signal from a control system, or anything else that will give you a ʻpowered switch closureʼ. The trigger inputs are nonpolarized (they donʼt care which terminal is positive or negative) and opto-isolated. You must feed a DC voltage into them. Just touching a pair of leads from a nine volt transistor radio battery is a good test of the inputs. As shown at the middle of the last page, you can ʻborrowʼ some of the power that is running the Sd-25 using the adjacent screw terminals, or use a separate isolated supply (as shown at left). The power supply is shown as a battery, but can be any power supply from 9 to 24 vdc.

Not surprisingly, all Gilderﬂuke & Co. control systems are easy to attach to a Sd-25. A Br- miniBrick4 is shown, but all of our systems are wired in exactly the same way. The common positive is run to one side of both Sd-25 inputs, and the control system outputs are wired right to the Sd-25

inputs.

The ʻInputʼ LEDs that are next to the two Sd-25 inputs will light when each input is active.

Power Supply:

The Sd-25 will run on any voltage from 12 through 24 vdc. Whatever voltage you use will also be used to run the ampliﬁer. If you

arenʼt using the ampliﬁer,

the Sd-25 will run on less than 50 ma. Size your power supply so it will provide enough current for the volume you are planning to run at. The ampliﬁer will put out more power at 24 volts than it can at a lower voltage. If using all 50 Watts of the ampliﬁer power, you will need to use a 24 volt supply rated at least 60 Watts. If you hear clipping, the speakers or power supply may be undersized for your application.

The power supply can be attached through the 2.1 mm power jack, or the screw terminals. Power Supply voltages higher than 24 vdc can damage the ampliﬁer on the Sd-25.

page 2 of 16 • © February 11, 2014 Gilderfluke & Co. DCM

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

Volume Controls:

A pair of small trimpots on the Sd-25 are used to set the maximum audio output level from the MMC/Sd card. The operating modes which ramp the audio up and down can never exceed the level set by these pots.

An additional pair of pots is used to set the levels for the ʻmixerʼ inputs.

With the case top on or off, you can adjust these pots using a small ʻtrimmerʼ screwdriver.

These trimpots are smaller than you. Do not use a big screwdriver on them. Do not apply too much force. They will break!

Mixer Inputs:

Two line level ʻmixerʼ inputs are available on version

1.6 and later Sd-25s. A line level audio signal from a Sd-10 audio repeater, pre-ampliﬁed microphone or any other line-level audio source can be plugged into these two RCA jacks. Two trimpots can be used to adjust the levels of the mixer inputs.

the line level outputs, just run a pair of RCA cables to your ampliﬁer (or ampliﬁed speakers), just as you would if you were connecting a CD player. The line level outputs are robust enough to drive headphones and small speakers directly.

Modulation LEDs:

The two ʻmodulationʼ LEDs, which are located in front of the speaker screw terminals, blink to show audio being reproduced. They pick up the audio signal coming from the repeater before the two volume control pots, so they are not affected by adjusting these pots or by the auxiliary ʻmixer inputs. Reducing the audio level through one of the ʻrampingʼ functions will reduce the intensity of these LEDs. Audio at too low a level will cause these LEDs to completely extinguish. Normalize your audio before loading it on the Sd-25 so that it is near 100% modulation.

Sometimes additional safety system assurance above and beyond monitoring the ʻStatusʼ output is needed to conﬁrm that the Sd-25 is actually playing. An external solid state relay or optoisolator can be attached in place of these LEDs. The safety system can then monitor this to conﬁrm that an audio signal is indeed being generated. Contact Gilderﬂuke & Company for more information on this sort of application.

In this example, a preampliﬁed microphone is fed into the mixer inputs of the Sd-25. The ʻPush to Talkʼ button on the microphone is fed into the ʻbʼ input of the Sd-25. The Sd-25 is conﬁgured to ʻduckʼ the audio from MMC/Sd card to a lower level when it sees a closure on the ʻbʼ input. When the microphone button is pressed, the Sd-25 ramps the prerecorded audio down to a lower level, and the microphone is used to make an announcement. When the button is released, the prerecorded audio ramps back up to the normal playback level.

Sd-25s earlier than hardware version 1.5 features line level outputs instead of mixer inputs. If you need line level outputs, these are available as a no-cost factory option when you order a new Sd-25. To use

Status Output:

A single uncommitted optoisolator output is available for remote monitoring of the Sd-25. It is ʻonʼ only while the Sd-25 is playing a triggered or ʻforegroundʼ SoundFile. It can be used to control ducking mixers, relays, or whatever you need.

To turn on a light, motor, or other electrical device while a triggered or foreground SoundFile is playing, just wire a solid state relay to the status output. Then wire the light, motor, or whatever you are controlling to this relay. This can be used in a museum, trade show, Point Of Sale (POS) and other applications.

In applications where a background audio SoundFile that doesnʼt stop when a foreground SoundFile is playing, the BGM SoundFile can be played from a Sd-10 which feeds its audio into the ʻmixerʼ inputs of the Sd-25.

page 3 of 16 • © February 11, 2014 Gilderfluke & Co. DCM

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

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

When the Sd-25 plays a triggered SoundFile or a timed announcement (using modes 16, 17 or StoreCaster 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 receiving commands and playing SoundFiles. For absolute surety, you can monitor that this output goes active when a SoundFile is triggered, and goes inactive 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 card1. When not playing, it will be very dim. While playing, it will ﬂicker at

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.

page 4 of 16 • © February 11, 2014 Gilderfluke & Co. DCM

Mode Name

Mode

Trig- gers

Input ʻAʼ

Input ʻBʼ

DipSwitches

1 thru 5

Options

Looping SoundFiles with Mutes

Ramps to Muted

Ramps to -3dB

off/off/off/off/off

1,8,10

Ramps to -6dB

on/off/off/off/off

1,8,102Ramps to -9dB

off/on/off/off/off

1,8,103Ramps to -12dB

on/on/off/off/off

1,8,104Ramps to -18dB

off//off/on/off/off

1,8,105Ramps to -24dB

on/off/on/off/off

1,8,106Ramps to -33dB

off/on/on/off/off

1,8,107Ramps to -48dB

on/on/on/off/off

1,8,10

Fast access to 1st SoundFile

Play 1st SoundFile only

Play All SoundFiles

off/off/off/on/off

2,6,7,8,9,10

Exclusive access to 1st SoundFile

92Play 2nd thru Last

on/off/off/on/off

2,6,7,8,9,10

Two Triggers and One Reshuffle

Reshuffle & Play 1st SoundFile

Play All SoundFiles

off/on/off/on/off

2,6,7,8,9,10

Two Triggers with Exclusive access to 1st

SoundFile/Reshuffle

B2Play 2nd thru Last

on/on/off/on/off

2,6,7,8,9,10

Single trigger with Reshuffle

C1Play All SoundFiles

Reshuffle

off/off/on/on/off

2,6,7,8,9,10

Single trigger with Mute

Play All SoundFiles

Ramps to -6dB

on/off/on/on/off

1, 8, 9, 10

Ramps to -12dB

off/on/on/on/off

1, 8, 9, 10

Ramps to -24dB

on/on/on/on/off

1, 8, 9, 10

Ramps to Muted

off/off/off/off/on

1, 8, 9, 10

Single trigger, Mute or Reshuffle

Short Pulses on ‘B’ Reshuffle SoundFiles, Long

pulses on ‘B’ ramp audio levels.

Play All SoundFiles

Short = Reshuffle

Long = Ramps to -6dB

on/off/off/off/on

1, 8, 9, 10

Short = Reshuffle

Long = Ramps to -12dB

off/on/off/off/on

1, 8, 9, 10

Short = Reshuffle

Long = Ramps to -24dB

on/on/off/off/on

1, 8, 9, 10

Short = Reshuffle

Long = Ramps to Mute

off/off/on/off/on

1, 8, 9, 10

Two Playlists

152Play 1st Half SoundFiles

Play 2nd Half SoundFiles

on/off/on/off/on

2,6,7,8,9,10

Two Playlists, First SoundFile Loops between

Triggered SoundFiles

1st Half SoundFiles

(except First SoundFile)

off/on/on/off/on

2,6,7,8,9,10

Two Playlists, Last SoundFile Loops between

Triggered SoundFiles

172Play 1st Half SoundFiles

2nd Half SoundFiles

(except Last SoundFIle)

on/on/on/off/on

2,6,7,8,9,10

Two Triggers, SoundFiles 3 thru Last Loop be-

tween Triggered SoundsFiles

182Plays 1st SoundFile

Plays 2nd SoundFile

off/off/off/on/on

2,6,7,8,9,10

Store Caster/Safety Messages/Music On Hold

Mutes All Audio

Ramps to -24dB

on/off/off/on/on

1, 8, 10

IR Normal Mode

1A0off/on/off/on/on

1, 8, 9, 10

IR Odd Mode

1B0on/on/off/on/on

1, 8, 9, 10

Doug’s Doorbell Mode (v1.16+ only)

1C1Plays All SoundFiles

Reshuffle

off/off/on/on/on

2,6,7,8,10

Two Playlists, Last SoundFile Loops between

Triggered SoundFiles

Short = Reshuffle

Long = Fade Out then Play 1st

Half of all SoundFiles

Both A & B = Fade Out to level

set by Option #3

Short = Reshuffle

Long = Fade Out then Play 2nd

Half of all SoundFiles

(except Last SoundFIle)

Both A & B = Fade Out to level

set by Option #3

on/off/on/on/on

3, 8, 9, 10

Two Triggers, SoundFiles 3 thru Last Loop be-

tween Triggered SoundsFiles

Short = Reshuffle

Long = Fade Out then Plays 1st

SoundFile

Both A & B = Fade Out to level

set by Option #3

Short = Reshuffle

Long = Fade Out then Plays 2nd

SoundFile

Both A & B = Fade Out to level

set by Option #3

off/on/on/on/on

3, 8, 9, 10

Reserved

tbd

on/on/on/on/on

tbd

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

Sd-25 Conﬁguration

! The Sd-25 is configured using a ten position DipSwitch. The cover of the Sd-25 must be snapped off to reach this DipSwitch. A ball point pen or any other pointy object can be used to flip the switches once the cover has been removed. Do not use a knife or other sharp object, as it might damage the switch.

page 5 of 16 • © February 11, 2014 Gilderfluke & Co. DCM

Option

Number

Option Name

What it Does

Switches Used to Select Options

Option #1

Audio Ramping Speeds

Immediate Ramping Speed

DipSw. #6 = Off

DipSw. #7 = Off

Fast Ramping Speed

DipSw. #6 = On

DipSw. #7 = Off

Medium Ramping Speed

DipSw. #6 = Off

DipSw. #7 = On

Slow Ramping Speed

DipSw. #6 = On

DipSw. #7 = On

Option #3

(Modes 1d and

1E only)

Audio Mute Levels (Fades background SoundFiles(s) to this level before starting fore-

ground SoundFiles)

Ramps to Muted

DipSw. #6 = Off

DipSw. #7 = Off

Ramps to -33dB

DipSw. #6 = On

DipSw. #7 = Off

Ramps to -18dB

DipSw. #6 = Off

DipSw. #7 = On

Ramps to -9dB

DipSw. #6 = On

DipSw. #7 = On

Option #2

Loop selected SoundFiles on sustained inputs

DipSw. #6 = Off

DipSw. #7 = Off

Option #6

SoundFiles do not Loop on sustained inputs (v1.16+ only)

DipSw. #6 = On

DipSw. #7 = Off or On

Option #7

Loop ALL selected SoundFiles on sustained inputs (v1.16+)

DipSw. #6 = Off

DipSw. #7 = On

Option #8

DipSw. #8 = Off: SoundFiles played sequentially

DipSw. #8 = On: Selected SoundFiles played randomly

Option #9

DipSw. #9 = Off: Triggered SoundFiles steppable

DipSw. #9 = On: Triggered SoundFiles Unsteppable

Option #10

DipSw. #10 = Off: Amplifier enabled only while playing

DipSw. #10 = On: Amplifier always Enabled

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

Options:

Operating Modes:

The ﬁrst ﬁve DipSwitches are used to set the mode of operation for the Sd-25. The remaining ﬁve DipSwitches set the ʻoptionsʼ. The ʻonʼ/ʼoffʼ after each ʻmodeʼ shows which of the ﬁrst ﬁve DipSwitches need to be turned ʻonʼ or ʻoffʼ to select that mode. As an example; to select ʻmode Bʼ, you would turn ʻonʼ switches one, two and four. Switches three and ﬁve would be turned ʻoffʼ.

Sometimes when the operating mode is switched, you may need to cycle power to the Sd-25 to assure it operates as expected.

If you need your SoundFiles(s) to just loop:

use mode 0.

DipSwitches one though ﬁve = off/off/off/off/off

If you need to trigger one or more Sound-

Files(s): use mode C.

DipSwitches one though ﬁve = off/off/on/on/off

Mode 0 / off/off/off/off/off

Loops with Mutes. Fade to -3dB on ʻbʼ

Mode 1 / on/off/off/off/off

Loops with Mutes. Fade to -6dB on ʻbʼ

Mode 2 / off/on/off/off/off

Loops with Mutes. Fade to -9dB on ʻbʼ

Mode 3 / on/on/off/off/off

Loops with Mutes. Fade to -12dB on ʻbʼ

Mode 4 / off/off/on/off/off

Loops with Mutes. Fade to -18dB on ʻbʼ

Mode 5 / on/off/on/off/off

Loops with Mutes. Fade to -24dB on ʻbʼ

Mode 6 / off/on/on/off/off

Loops with Mutes. Fade to -33dB on ʻbʼ

Mode 7 / on/on/on/off/off

Loops with Mutes. Fade to -48dB on ʻbʼ

Loop all the SoundFiles on the Sd-25, starting at PowerUp. Input ʻaʼ will ramp the audio to a fully muted level when activated. The ʻbʼ input ramps the audio to a ʻhalf mutedʼ (lower) volume. The only difference among these eight modes is the ʻmutedʼ volume level the ʻbʼ input selects. These modes will support up to 32,767 SoundFiles.

Options:

Option #1: DipSwitches #6 and #7 are used to se-

page 6 of 16 • © February 11, 2014 Gilderfluke & Co. DCM

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

lect the speed at which the audio ramps in/out.

Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially. If less than 255 SoundFiles are loaded on the Sd-25, then the randomizer checks off each SoundFile as it is played. It will not play the same SoundFile a second time until it has played all the other SoundFile ﬁles. If more than 255 SoundFiles are loaded on to the Sd-25, then the SoundFiles are played randomly. It does not check to see whether the same SoundFile has been played recently.

Mode 8 / off/off/off/on/off

Two triggers, with fast access to ﬁrst SoundFile

Input ʻaʼ plays the ﬁrst SoundFile ONLY, Input ʻbʼ plays ALL of the SoundFiles on the Sd-25 (SoundFiles 1 through ??). This mode is used when you want to use the ʻbʼ input to trigger all of the SoundFiles, but occasionally want to play the ﬁrst SoundFile an extra time.

Options:

Option #2: The one SoundFile that is selected will

loop as long as the input stays active (only on Firmware version 1.16 or later): unless DipSwitch #6 or DipSwitch #7 are on.

SoundFile

Like Mode 8, except the B input plays SoundFiles 2 through ?? instead of ʻAllʼ the SoundFiles. This mode is used when you need a method of triggering an emergency or other ʻspecialʼ announcement.

Options:

Option #2: The one SoundFile that is selected will

loop as long as the input stays active (only on Firmware version 1.16 or later): unless DipSwitch #6 or

DipSwitch #7 are on.

Option #6: DipSwitch #6: (Firmware version 1.16

or later) When on, the SoundFile will only play once (no looping).

Option #7: DipSwitch #7: (Firmware version 1.16 or later) When on, input ʻaʼ will loop SoundFile #1 as long as the input stays active, and input ʻbʼ will loop through SoundFiles 2 through ?? as long as the input stays active.

Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially.

Option #9: DipSwitch #9: Unsteppable. When on, additional start commands to the Sd-25 will be ignored until the currently playing triggered SoundFile has completed.

Option #6: DipSwitch #6: (Firmware version 1.16 or later) When on, the SoundFile will only play once

(no looping).

Option #7: DipSwitch #7: (Firmware version 1.16 or later) When on, input ʻaʼ will loop SoundFile #1 as long as the input stays active, and input ʻbʼ will loop through ALL of the SoundFiles on the Sd-25 (SoundFiles 1 through ??) as long as the input stays active.

Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially.

Option #9: DipSwitch #9: Unsteppable. When on, additional start commands to the Sd-25 will be ignored until the currently playing triggered SoundFile has completed.

Mode 9 / on/off/off/on/off

Two triggers, with fast and exclusive access to ﬁrst

Mode A / off/on/off/on/off

Trigger+reshufﬂe and a second trigger

Similar to Mode 8, except that input ʻaʼ plays the ﬁrst SoundFile ONLY and also ʻreshufﬂesʼ the ʻPlayListʼ triggered by the ʻbʼ input. Input ʻbʼ plays ALL of the SoundFiles on the Sd-25 (SoundFiles 1 through ??).

Options:

Option #2: The one SoundFile that is selected will

loop as long as the input stays active (only on Firmware version 1.16 or later): unless DipSwitch #6 or

DipSwitch #7 are on.

Option #6: DipSwitch #6: (Firmware version 1.16

or later) When on, the SoundFile will only play once (no looping).

page 7 of 16 • © February 11, 2014 Gilderfluke & Co. DCM

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

(SoundFiles 1 through ??) as long as the input stays active.

Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially.

Option #9: DipSwitch #9: Unsteppable. When on, additional start commands to the Sd-25 will be ignored until the currently playing triggered SoundFile has completed.

Mode B / on/on/off/on/off

Like Mode A, except the ʻbʼ input plays SoundFiles 2 through ?? instead of ʻAllʼ the SoundFiles.

Options:

Option #2: The one SoundFile that is selected will

loop as long as the input stays active (only on Firmware version 1.16 or later): unless DipSwitch #6 or

DipSwitch #7 are on.

Option #6: DipSwitch #6: (Firmware version 1.16

or later) When on, the SoundFile will only play once (no looping).

Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially.

Option #9: DipSwitch #9: Unsteppable. When on, additional start commands to the Sd-25 will be ignored until the currently playing triggered SoundFile has completed.

Option #6: DipSwitch #6: (Firmware version 1.16 or later) When on, the SoundFile will only play once

(no looping).

Option #7: DipSwitch #7: (Firmware version 1.16 or later) When on, input ʻaʼ will loop through SoundFiles 1 through ?? as long as the input stays active.

Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially.

Option #9: DipSwitch #9: Unsteppable. When on, additional start commands to the Sd-25 will be ignored until the currently playing triggered SoundFile has completed.

Mode D / on/off/on/on/off

Single trigger with mute on ʻaʼ Fade to -6dB on ʻbʼ

Mode E / off/on/on/on/off

Single trigger with mute on ʻaʼ Fade to -12dB on ʻbʼ

Mode F / on/on/on/on/off

Single trigger with mute on ʻaʼ Fade to -24dB on ʻbʼ

Mode 10 / off/off/off/off/on

Single trigger with mute on ʻaʼ Fade to muted on ʻbʼ

Input ʻaʼ plays ALL of the SoundFiles on the Sd-25 (SoundFiles 1 through ??) on each successive button press. Firmware versions before v1.27 will loop a single SoundFile on sustained ʻaʼ input closures. Firmware versions after v1.27 will loop through ALL the SoundFiles on the Sd card on sustained ʻaʼ input closures.

Mode C / off/off/on/on/off

Single trigger with reshufﬂe

Input ʻaʼ plays ALL of the SoundFiles on the Sd-25 (SoundFiles 1 through ??). Input ʻbʼ reshufﬂes the ʻPlayListʼ triggered by the ʻaʼ input.

Options:

Option #2: The one SoundFile that is selected will

loop as long as the input stays active (only on Firmware version 1.16 or later): unless DipSwitch #6 or DipSwitch #7 are on.

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Input ʻbʼ ramps the audio down -6dB from full volume. The only difference among the next three modes is the ʻmutedʼ volume level the ʻbʼ input selects.

Options:

Option #1: DipSwitches #6 and #7 are used to se-

lect the speed at which the audio ramps in/out.

Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially.

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Option #9: DipSwitch #9: Unsteppable. When on, additional start commands to the Sd-25 will be ignored until the currently playing triggered SoundFile has completed.

Mode 11 / on/off/off/off/on

Single trigger with mute/reshufﬂe on ʻaʼ Fade to -6dB on ʻbʼ

Mode 12 / off/on/off/off/on

Single trigger with mute/reshufﬂe on ʻaʼ Fade to -12dB on ʻbʼ

Mode 13 / on/on/off/off/on

Single trigger with mute/reshufﬂe on ʻaʼ Fade to -24dB on ʻbʼ

Mode 14 / off/off/on/off/on

Single trigger with mute/reshufﬂe on ʻaʼ Fade to muted on ʻbʼ

A ʻshortʼ pulse (more than 1/8 second, but less than 1/4 second) on input ʻbʼ ʻreshufﬂesʼ the ʻPlayListʼ triggered by the ʻaʼ input. A longer closure on input ʻbʼ ramps the audio down -6dB from full volume when activated. The only difference among the next three modes is the ʻmutedʼ volume level the ʻbʼ input selects.

Options:

Option #1: DipSwitches #6 and #7 are used to se-

lect the speed at which the audio ramps in/out.

Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially.

if you try to start any SoundFile while an unsteppable SoundFile ﬁle is already playing.

Mode 15 / on/off/on/off/on

Two PlayLists

This mode divides all of the SoundFiles into two evenly sized ʻPlayListsʼ.

Input ʻaʼ triggers SoundFiles from the ﬁrst half, and input ʻbʼ triggers SoundFiles from the second half.

There must be at least two SoundFiles on the Sd-25 for this mode. If there is an odd number of SoundFiles, then the second PlayList (triggered by the ʻbʼ input) will have one more SoundFile than the ﬁrst PlayList (triggered by ʻaʼ input).

Options:

Option #2: The one SoundFile that is selected will

loop as long as the input stays active (only on Firmware version 1.16 or later): unless DipSwitch #6 or

DipSwitch #7 are on.

Option #6: DipSwitch #6: (Firmware version 1.16

or later) When on, the SoundFile will only play once (no looping).

Option #7: DipSwitch #7: (Firmware version 1.16 or later) When on, input ʻaʼ will loop through the ﬁrst half of the SoundFiles as long as the input stays active. Input ʻbʼ loops through the second half of the SoundFiles as long as the input stays active.

Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially.

Option #9: DipSwitch #9: Unsteppable. When on, additional start commands to the Sd-25 will be ignored until the currently playing triggered SoundFile has completed.

(Firmware version 1.17 or later) When set to any of these four modes, SoundFile requests made through the serial port will be stored up to ten deep,

Mode 16 / off/on/on/off/on

Two PlayLists, with looping background SoundFile

Like Mode 15, except that the Sd-25 will loop the ﬁrst SoundFile on the card whenever it isnʼt playing a triggered SoundFile.

This mode divides all of the SoundFiles into two

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evenly sized ʻPlayListsʼ. Input ʻaʼ triggers SoundFiles from the ﬁrst half, and input ʻbʼ triggers SoundFiles from the second half. The ﬁrst ʻPlayListʼ starts at the second SoundFile.

The background looping SoundFile will start playing as soon as the Sd-25 is powered up. Even if the ʻno stepʼ switch is ʻonʼ (DipSwitch #9), the background SoundFile can be stepped upon by a trigger to play a SoundFile from the ʻaʼ or ʻbʼ inputs.

There must be at least three SoundFiles on the Sd- 25 for this mode. If there is an even number of SoundFiles on the Sd-25, then the second PlayList (triggered by the ʻbʼ input) will have one more SoundFile than the ﬁrst PlayList (triggered by ʻaʼ input). When in this mode, the ʻstatusʼ output only goes active when it is playing a triggered SoundFile.

Options:

Option #2: The one SoundFile that is selected will

loop as long as the input stays active (only on Firmware version 1.16 or later): unless DipSwitch #6 or

DipSwitch #7 are on.

Option #6: DipSwitch #6: (Firmware version 1.16

or later) When on, the SoundFile will only play once (no looping).

Files on the Sd-25 for this mode.

Options:

Option #2: The one SoundFile that is selected will

loop as long as the input stays active (only on Firmware version 1.16 or later): unless DipSwitch #6 or

DipSwitch #7 are on.

Option #6: DipSwitch #6: (Firmware version 1.16

or later) When on, the SoundFile will only play once (no looping).

Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially.

Option #9: DipSwitch #9: Unsteppable. When on, additional start commands to the Sd-25 will be ignored until the currently playing triggered SoundFile has completed.

Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially.

Option #9: DipSwitch #9: Unsteppable. When on, additional start commands to the Sd-25 will be ignored until the currently playing triggered SoundFile has completed.

Mode 17 / on/on/on/off/on

Two PlayLists, with looping background SoundFile

Like Mode 16, except the LAST SoundFile is used as the background looping SoundFile. If there is an even number of SoundFiles on the Sd-25, then the ﬁrst PlayList (triggered by the ʻaʼ input) will have one more SoundFile than the second PlayList (triggered by ʻbʼ input). There must be at least three Sound-

Mode 18 / off/off/off/on/on

Trigger SoundFiles one or two, with a background SoundFile PlayList

Input ʻaʼ plays the ﬁrst SoundFile on the Sd/MMC Flash card.

Input ʻbʼ plays the second SoundFile on the Sd/ MMC Flash card.

If not playing either of these SoundFiles, then SoundFiles 3 through ?? will be played. If the ʻRandomʼ switch (DipSwitch #8) is ʻonʼ, the background SoundFiles will be played in a Random order. Even if the ʻno stepʼ switch is ʻonʼ (DipSwitch #9), the background SoundFile can be stepped on by a trigger to play a SoundFile from the ʻaʼ or ʻbʼ inputs. There must be at least three SoundFiles on the Sd-

25 for this mode.

Options:

Option #2: The one SoundFile that is selected will

loop as long as the input stays active (only on Firmware version 1.16 or later): unless DipSwitch #6 or

DipSwitch #7 are on.

Option #6: DipSwitch #6: (Firmware version 1.16

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or later) When on, the SoundFile will only play once (no looping).

Option #7: DipSwitch #7: (Firmware version 1.16 or later) When on, input ʻaʼ will loop SoundFile one as long as the input stays active. Input ʻbʼ loops SoundFile two as long as the input stays active.

Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially.

Option #9: DipSwitch #9: Unsteppable. When on, additional start commands to the Sd-25 will be ignored until the currently playing triggered SoundFile has completed.

Mode 19 / on/off/off/on/on

ʻStoreCasterʼ, ʻSafety Messageʼ and ʻMusic-On- Holdʼ mode

From PowerUp, all but the ﬁrst SoundFile will play in a loop. Between each of these SoundFiles, it will play the ﬁrst SoundFile. This allows the ﬁrst SoundFile to be used as an advertisement or safety announcement. There must be at least two SoundFiles on the Sd-25 for this mode. Input ʻaʼ ramps the audio down to full mute when activated. Input ʻbʼ ramps the audio down -24dB from full volume when activated.

In Even mode, DipSwitch #8 on the IR Transmitter must be ʻoffʼ or the IR beam will be ignored. (This limits IR requests to numbers 01h through 7Fh, which will play SoundFiles 1 through 127.)

In Odd mode, DipSwitch #8 on the IR Transmitter must be ʻonʼ or the IR beam will be ignored. (This limits IR requests to numbers 80h through FFh, which will play SoundFiles 1 through 127.)

These modes are used with our IR transmitters and receivers to trigger speciﬁc SoundFiles to play at speciﬁc points along a path on trains, ride vehicles, rollercoasters, monorails, hay rides, tour busses and other similar vehicles.

If operating in either IR mode, DipSwitch #8, when ʻonʼ tells the Sd-25 to never play the same Sound- File twice in a row. Use this DipSwitch when there is a possibility that the IR receiver will park on a IR transmitterʼs beam, and you donʼt want it to repeat the same SoundFile over and over and over…...

If operating in either IR mode, DipSwitch #9 is normally set to ʻonʼ. If it is ʻoffʼ, the SoundFile will be continuously retriggered as long as the IR receiver remains inside the IR transmitterʼs beam. The SoundFile will not be allowed to play through until the IR receiver leaves the transmitter's IR beam.

Input ʻaʼ will ramp the audio to a fully muted level when activated. The ʻbʼ input ramps the audio to a

-24dB ʻhalf mutedʼ (lower) volume.

Options:

Option #1: DipSwitches #6 and #7 are used to se-

lect the speed at which the audio ramps in/out.

Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially.

Mode 1A / off/on/off/on/on

ʻIR Normalʼ mode

Mode 1B / on/on/off/on/on

ʻIR Oddʼ mode

This mode requires the addition of the Sd-IR/Rx or Sd-RS/422 serial adapter and IR-Rx to the Sd-25.

Either IR mode sets the serial port to 1200 baud. Ten repeats of SoundFile number through serial port (in binary) starts the requested SoundFile playing.

Options:

Option #1: DipSwitches #6 and #7 are used to se-

lect the speed at which the audio ramps in/out.

Mode 1C / off/off/on/on/on

ʻDougʼs Doorbellʼ mode

This mode requires Sd-25 Firmware v1.16 or later. Single Trigger with Reshufﬂe. This mode is very similar to mode C, but supports 32,767 possible SoundFiles on the Sd-25. All SoundFiles are ʻUnsteppableʼ when operating in this mode. Input ʻaʼ plays ALL of the SoundFiles on the Sd-25 (SoundFiles 1 through ??). Input ʻbʼ reshufﬂes the ʻPlayListʼ triggered by the ʻaʼ input.

Options:

Option #2: The one SoundFile that is selected will

loop as long as the input stays active (only on Firm-

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

ware version 1.16 or later): unless DipSwitch #6 or

DipSwitch #7 are on.

Option #6: DipSwitch #6: When on, the SoundFile

will only play once (no looping).

Option #7: DipSwitch #7: When on, input ʻaʼ will loop through SoundFiles 1 through ?? as long as the input stays active. Short pulses on the ʻaʼ input tend to play sequentially, even if DipSwitch #8 is on.

Option #8: DipSwitch #8: Randomizer. When on, SoundFiles are played in random order, rather than sequentially. Unlike most other modes where the SoundFiles are played randomly, this mode does not check to see whether the same SoundFile has been played recently. This means that it is possible for the same SoundFile to be played twice in a row.

Mode 1d / on/off/on/on/on

Fade out and Trigger Two PlayLists, with looping background SoundFile

This mode requires Sd-25 Firmware v1.17 or later. Like Mode 17, except it fades out the SoundFile that is playing to the level set by DipSwitches #6 and #7 BEFORE starting the newly triggered SoundFile at the ʻnormalʼ playback volume. At the end of the triggered sound, the background SoundFile will be restarted at the ʻramped downʼ volume level, then fade back up to the ʻnormalʼ audio playback level.

This mode divides all of the SoundFiles into two evenly sized ʻPlayListsʼ. Input ʻaʼ triggers SoundFiles from the ﬁrst half, and input ʻbʼ triggers SoundFiles from the second half.

If both the ʻaʼ and ʻbʼ inputs are held simultaneously, the audio will fade out to the level set by DipSwitches #6 and #7 and stay there until at least one of the inputs is released.

A ʻshortʼ pulse (more than 1/8 second, but less than 1/4 second) on the ʻaʼ or ʻbʼ (or both) inputs ʻreshufﬂesʼ the ʻPlayListsʼ.

The one triggered SoundFile that is selected will only play once (no looping).

The fade rate is ﬁxed in this mode to the ʻslowestʼ possible speed.

Options:

Option #3: The fade level (fully muted, -9 dB, -18 dB or -33 dB) is selected using DipSwitches #6 and #7.

Option #8: DipSwitch #8: Randomizer. When on,

SoundFiles are played in random order, rather than sequentially.

Option #9: DipSwitch #9: Unsteppable. When this switch is ʻoffʼ, if the ʻaʼ or ʻbʼ trigger input is pressed, then released before the triggered SoundFile has played, the audio will simply ramp back up to the normal level. When this switch is ʻonʼ, then even a short press of the ʻaʼ or ʻbʼ trigger input will ramp the background sound and play the triggered sound, restart the background sound and ramp the volume back up to the ʻnormalʼ audio playback level. A second trigger will not be accepted until after the triggered sound has played. Reshufﬂes are disabled when this switch is ʻonʼ.

There must be at least three SoundFiles on the Sd- 25 for this mode. If there is an even number of SoundFiles on the Sd-25, then the ﬁrst PlayList (triggered by the ʻaʼ input) will have one more SoundFile than the second PlayList (triggered by ʻbʼ input).

The Sd-25 will loop the last SoundFile on the card whenever it isnʼt playing a triggered SoundFile. The background looping SoundFile will start playing as soon as the Sd-25 is powered up. Even if the ʻno stepʼ switch is ʻonʼ (DipSwitch #9), the background SoundFile can be stepped upon by a trigger to play a SoundFile from the ʻaʼ or ʻbʼ inputs. The Sd-25ʼs ʻstatusʼ output only goes active when it is playing a triggered SoundFile.

Mode 1E / off/on/on/on/on

Fade out and Trigger SoundFiles one or two, with a background SoundFile PlayList.

This mode requires Sd-25 Firmware v1.17 or later. Like Mode 18, except it fades out the SoundFile that is playing to the level set by DipSwitches #6 and #7 BEFORE starting the newly triggered SoundFile.

Input ʻaʼ plays the ﬁrst SoundFile on the Sd/MMC Flash card. Input ʻbʼ plays the second SoundFile on the Sd/MMC Flash card. If not playing either of these SoundFiles, then SoundFiles 3 through ?? will be played. If the ʻRandomʼ switch (DipSwitch #8) is ʻonʼ, the background SoundFiles will be played in a Random order. Even if the ʻno stepʼ switch is ʻonʼ

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(DipSwitch #9), the background SoundFile can be stepped on by a trigger to play a SoundFile from the ʻaʼ or ʻbʼ inputs. The Sd-25ʼs ʻstatusʼ output only goes active when it is playing a triggered SoundFile.

There must be at least three SoundFiles on the Sd- 25 for this mode.

If both the ʻaʼ and ʻbʼ inputs are held simultaneously, the audio will fade out to the level set by DipSwitches #6 and #7 and stay there until at least one of the inputs is released.

A ʻshortʼ pulse (more than 1/8 second, but less than 1/4 second) on the ʻaʼ or ʻbʼ (or both) inputs ʻreshufﬂesʼ the ʻPlayListʼ.

The one triggered SoundFile that is selected will only play once (no looping).

The fade rate is ﬁxed in this mode to the ʻslowestʼ possible speed.

Options:

Option #3: DipSwitches #6 and #7. The fade level

(fully muted, -9 dB, -18 dB or -33 dB) is selected using DipSwitches #6 and #7.

Option #8: DipSwitch #8: Randomizer. When on, background looping SoundFiles are played in random order, rather than sequentially.

Option #9: Option #9: DipSwitch #9: Unsteppable. When this switch is ʻoffʼ, if the ʻaʼ or ʻbʼ trigger

input is pressed, then released before the triggered SoundFile has played, the audio will simply ramp back up to the normal level. When this switch is ʻonʼ, then even a short press of the ʻaʼ or ʻbʼ trigger input will ramp the background sound and play the triggered sound, restart the background sound and ramp the volume back up to the ʻnormalʼ audio playback level. A second trigger will not be accepted until after the triggered sound has played. Reshufﬂes are disabled when this switch is ʻonʼ.

Mode 1F / on/on/on/on/on

This setting is reserved for ʻcustomʼ settings on the Sd-25s. If none of the standard modes of operation suit your needs, we can modify the ﬁrmware to do exactly what you need.

Audio Ramp Speed:

Several of the operating modes allow you to ramp the audio level up and down. DipSwitches #6 and #7 are used to set the speed at which audio is ramped:

DipSwitch #6 ʻoffʼ, DipSwitch #7 ʻoffʼ = immediate DipSwitch #6 ʻonʼ, DipSwitch #7 ʻoffʼ = fast ramp DipSwitch #6 ʻoffʼ, DipSwitch #7 ʻonʼ = medium DipSwitch #6 ʻonʼ, DipSwitch #7 ʻonʼ = slow ramp

Sequential/Random:

DipSwitch #8 is used to select whether the audio ﬁles are played in sequential order (order in which the ﬁles were loaded onto the ﬂash card) when DipSwitch #8 is ʻ offʼ, or in random order (DipSwitch #8 ʻonʼ). When playing in random order, a ﬂag is set for each SoundFile. It will randomly pick the SoundFile to play, and reset this ﬂag until it runs out of SoundFiles which havenʼt yet been played. It will then reshufﬂe the SoundFiles. This means that the same SoundFile wonʼt be played a second time until after the next reshufﬂe happens. The only time the same SoundFile will play two times in a row is if the reshufﬂe happens and the next ﬁle which is chosen at random happens to be the same SoundFile. It can happen, but it wonʼt often. Any of the command modes which ʻreshufﬂeʼ the SoundFiles will reset all the SoundFile ﬂags. If playing ʻrandomlyʼ, then any SoundFile in the PlayList can be played. If playing sequentially, it will start playing with the ﬁrst SoundFile in the PlayList.

If operating in either IR mode, DipSwitch #8, when ʻonʼ tells the Sd-25 to never play the same Sound- File twice in a row. Use this DipSwitch when there is a possibility that the IR receiver will park on the same IR beam, and you donʼt want it to repeat the same SoundFile over and over and over……

Steppable/Non-Steppable:

DipSwitch #9 is used to select whether the triggered SoundFiles are protected against another SoundFile being triggered while it is still playing. If this switch is ʻoffʼ, then a triggered SoundFile can be started at any time. If this switch is ʻonʼ, then additional trigger inputs will be ignored if another triggered SoundFile is already playing.

This switch is normally used in application where the SoundFile is triggered by a motion detector or guest triggered button. Motion detectors and user oper-

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ated buttons can give multiple triggers. If this switch was ʻoffʼ, would cause the SoundFile to re-trigger. With it ʻonʼ each triggered SoundFile will play to completion.

ʻBackgroundʼ looping SoundFiles, like those in modes 16, 17 and 19 ignore this switch. Even if it is ʻonʼ the ʻbackgroundʼ SoundFile will be stepped upon if a trigger input comes in via ʻaʼ or ʻbʼ inputs.

Ampliﬁer Enable:

DipSwitch #10 is used to permanently enable the Sd-25ʼs ampliﬁer when ʻonʼ. If you are not using the

mixer, you will reduce power consumption by moving this switch to the ʻoffʼ position. The ampliﬁer will then turn off if no audio is being played from the MMC/Sd card. If you are using the mixer inputs, then you will probably need to leave this switch ʻonʼ, unless the repeater is also running whenever the mixer is needed.

Sd-25 repeaters earlier than revision 1.5 used this switch to enable the ampliﬁer when ʻonʼ and disable it when ʻoffʼ.

Seamless Looping:

For ʻseamlessʼ looping, use .wav encoding. Mp3 encoded SoundFiles need a fraction of a second to get the audio rolling, and so will not loop as seamlessly.

Using Two Inputs to Randomly Access SoundFiles:

With only two trigger inputs, random access to individual SoundFiles canʼt be done with the Sd-25 alone. If being run from a control system (PLC, ﬁre system, or any Gilderﬂuke Show Control system), SoundFiles can be randomly accessed by giving multiple pulses to the Sd-25. You would typically choose a mode that allows the SoundFiles to be ʻreshufﬂedʼ and leave the ʻRandomʼ and ʻNonSteppableʼ switches ʻoffʼ. An example of this is mode ʻCʼ. A pulse on the the ʻbʼ trigger input reshufﬂes the PlayList. Additional pulses (typically at 15 Hz) to the ʻaʼ input step the Sd-25 forward to select and play the desired SoundFile.

Hardware options:

1.Sd-RS/232 RS-232 serial port (user installable)

2.Sd-RS/422: RS-422 serial port (factory option)

3.Sd-IR/Rx Internal IR receiver for use with IR-Tx

4.IR-Rx (must be used with Sd-RS422)

5.Line Level Outputs (No-Charge factory option replaces the line level mixer inputs)

Sd-25 Installation:

The Sd-25 can be mounted using two screws on 2- 1/4” centers; 2-3/4” Augat ʻSnap-Trackʼ (which itself can be DIN rail mounted); using DIN rail adapters; or just Velcroʼd down. In many applications, the Sd- 25 can be attached on (or in) the speakers it is feeding. The Sd-25 must not be mounted where it might get wet, or suffer from extremes of temperature.

Unless the ampliﬁer is being run at extreme output levels, the Sd-25 will generate very little heat. Attaching it to something metal will allow it to dissipate what little heat it does generate.

Advanced Users:

If an input which triggers a SoundFile to start playing is held ʻactiveʼ, then the SoundFile will loop on itself as long as the input remains active. When the input ʻopensʼ, the SoundFile will complete playing normally.

Optional RS-232 Serial Port:

An optional RS-232 serial port is available on the Sd-25 (revision 1.3 or later). The Sd-RS/232 can be installed by simply plugging it in to the Sd-25. The double faced tape holds the Sd-RS/232 to the top of the case.

A RS-422 serial port is also available, but is a factory-only option, as the case must be modiﬁed to accommodate the Sd-RS/422ʼs RJ-12 connector.

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The serial port on a Sd-25 runs at a ﬁxed rate of 9600 baud, n, 8, 1 (unless it is in one of the IR Modes).

Adapters to attach this port to a PC or Mac are available from Gilderﬂuke & Company. 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).

When the Sd-25 boots or a new MMC/Sd card is inserted, the Sd-25 will list all the SoundFiles that are found. When any SoundFile is played, the name and info about the ﬁle are displayed through the serial port (there is approximately one second delay after a SoundFile starts before this info is displayed). As a SoundFile plays, the Sd-25 reports the number of seconds (in ASCII Hex) into the SoundFile it is.

Using the Optional Serial Port to Select and Play SoundFiles:

To select and play a SoundFile through the serial port, send the Sd-25 an ASCII ʻpʼ character, followed by a two digit ASCII Hex number of the SoundFile

you want to be played. Example: to play SoundFile 1, send ʻp01ʼ. For SoundFile 25, send ʻp19ʼ.

Using the Optional Serial Port to Adjust Audio Playback Levels:

This command requires Sd-25 Firmware v1.21 or later. To set the ʻnormalʼ audio playback level

through the serial port, send the Sd-25 an ASCII <Control>+ʼVʼ character (0x16), followed by a two digit ASCII Hex number of the level you want to use. Valid levels are ʼ00ʼ to ʻFFʼ. Example: to set playback level to 80h, send ʻ<0x16>ʼ80ʼ.

The volume control through the serial port is highly logarithmic. Once set, the Sd-25 will scale all the ʻmuteʼ and ʻduckʼ functions to the value you have set as the ʻnormalʼ playback level.

Special Orders:

If none of the standard operating modes available on the Sd-25 meet your needs, we can modify the existing modes, or put in a new mode to suit your special needs.

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

Consult the dealer or an experienced radio/TV technician for help.

FCC and CE Compliance:

Sd-25s which are revision 1.6 or later have been tested to comply with FCC and CE requirements. Revisions earlier than this may have passed testing, but were not certified at the time of manufacture.

Because Sd-25s are low voltage DC devices, neither UL or CE require safety testing.

For fireproofing or additional radio frequency interference shielding, Sd-25s can be mounted in a fire rated metallic case. Typically, this would be a NEMA-rated electrical enclosure or 19” electrical rack.

FCC Instruction to User:

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 Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This 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 and 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 to

• which the receiver is connected.

• This equipment has been verified to comply with the limits for a class B

computing device, pursuant to FCC Rules. In order to maintain compliance with FCC regulations, shielded cables must be used with this equipment. Operation with non-approved equipment or unshielded cables is likely to result in interference to radio and TV reception. The user is cautioned that changes and modifications made to the equipment without the approval of manufacturer could void the user's authority to operate this equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference and (2) this device must accept any interference received, including interference that may cause undesired operation.

This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.

Cet appareil numerique de la classe B respecte toutes les exigences du Reglement sur le materiel brouilleur du Canada.

EC DECLARATION OF CONFORMITY

Tuesday, February 11, 2014

Application of Council Directives:!! ! ! EMC Directive, 89/336/EEC

Manufacturer's Name:! ! ! ! ! Gilderfluke & Co., Inc.

Manufacturer’s Address:! ! ! ! ! 205 South Flower St., Burbank, California 91502 USA

Importer’s Name:! ! ! ! ! ! !!!!!!!

Importer’s Address:! ! ! ! ! ! !!!!!!!

Type of Equipment:! ! ! ! ! ! Professional Audio

Equipment Class:! ! ! ! ! ! Commercial and Light Industrial

Model:! ! ! ! ! ! ! Sd-25

Conforms to the following Standards:! ! ! EN 55103-1: 1996 and EN 55103-2: 1996

Year of Manufacture:! ! ! ! ! 2006

I the undersigned, hereby declare that the equipment specified above conforms to the above directive(s) and standard(s).

Place:! Burbank, California! ! ! ! ! Signature:! (signed)!! ! !

Date: August 1, 2006! ! ! ! ! Full Name:! Doug Mobley

! ! ! ! ! ! ! ! Position:! CEO

Gilderfluke&Co Sd-25 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual