Gilderfluke&Co 16 Bit CD-Quality Digital Audio Systems User Manual

Page 39

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accept bad signals and trigger the wrong spiels. Too large of a value can delay the start of a spiel. The
default value is eight.

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ÒeÓ

DMX Channels:

Each AB/DR-3000 can listen to as many as four DMX-512 data channels at one time. This command

is used to select which ones will be used. DMX Channels must be entered in ascending order. This com-
mand will beep annoyingly at you if you try to do otherwise. All other commands in the AB/DR-3000
setup menus refer to the DMX channels as ÔaÕ, ÔbÕ, ÔcÕ, or ÔdÕ. Only the first DMX channel ÔaÕ can be used
as a trigger input for the AB/DR-3000 (see next command).

This command is unavailable if DMX Mode has been turned OFF.

ÒfÓ

Mirror DMX ÔaÕ to Trigger Inputs:

If desired, the first DMX-512 channel (a) can also be sent to the trigger inputs. When you do this, the

AB/DR-3000 will treat any data coming through this DMX channel just as if it were coming in through the
1/4 J6 optoisolated inputs. This DMX-512 input can the be used to randomly select shows, start or stop
spiels, mute and unmute outputs, or do anything else you can do with any of the 1/4 J6 inputs.
Separate configurations are not available for the DMX-512 and 1/4 J6 inputs.

This command is unavailable if DMX Mode has been turned OFF.

ÒgÓ

DMX Checksum:

This tells the AB/DR-3000 to use a checksum that is transmitted by PC¥MACs in the 256th and 257th

DMX channels. This checksum is used by this and other Gilderfluke & Co. equipment to verify that no er-
rors were found in the transmitted data before it is used to update their outputs. It should always be used
if the AB/DR-3000 is being controlled by any Gilderfluke & Co. Animation Control System.

When a checksum error is encountered in the incoming DMX data an error message ФE06Х will be dis-

played on the front of the AB/DR-3000.

This command is unavailable if DMX Mode has been turned OFF.

ÒhÓ

Ports = DMX, SMPTE In/Out or IR Mode:

The serial port on the AB/DR-3000 can be set to one of four modes. These are:

A) DMX-512 Input: The DMX-512 mode is used to receive a high speed serial data stream from a

Animation Control or lighting system. This allows any number of AB/DR-3000s to be controlled
through a single twisted pair of wires. Each AB/DR-3000 can listen to as many as four different
DMX-512 channels and use this information to control various volumes. If the Mirror DMX ÔaÕ
to Trigger Inputs is ON, then one of the DMX-512 channels can be used to select and trigger
spiels, mute/unmute, or ramp the outputs up and down.

B) SMPTE Input: When the SMPTE Input is on, the AB/DR-3000 will listen to any SMPTE time code

sent to it and trigger spiels based on table you enter on the SMPTE TRIGGER menu. Once trig-
gered, the sound will not follow any variations in speed in the incoming SMPTE. Up to forty-
eight (48) different triggers can be entered. The AB/DR-3000s will process only one trigger on
each second. If more than one trigger is set for the same second, then just the first one will
honored.

The SMPTE input on the AB/DR-3000s isnÕt as ÔpickyÕ as the readers on our Animation

Control systems. It doesnÕt require a number of consecutive good frames of data before it be-
lieves the SMPTE it receives. It should accept SMPTE at 24, 25, 30 or 29.97 FPS. All you need to
do is NOT schedule any starts on frames that donÕt exist in the incoming SMPTE. i.e.: If you are

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