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External Control Commands
141
LDV Control Commands
Introduction
Firefly may be controlled serially via the Laserdisc emulation
control set described in this section. This interface sends
commands to Firefly dictating video playback, player settings or to
report back system information. Commands received and
recognized by Firefly will return an “R” (ACK). Commands not
recognized will be reported back to the controller as an error. The
following sections describe setting up communication and
programming the show controller.
As previously noted, the Visual Circuits Corporation (VCC)
control commands are proprietary in nature, and therefore and not
designed to be mixed with Laserdisc emulation (LDV) control
commands. Doing so, could cause inconsistent results and is not
recommended.
COM Port Settings
Any serial device controller may be used to control Firefly. Some
manufacturers of these controllers include Crestron, AMX, Triad,
Alcorn McBride and Sky Skan. This list of controllers is not all
inclusive nor is it an endorsement of any one device.
The controllers communication port, or COM port, should be
configured to properly communicate data to Firefly. These
commands are ASCII characters either upper and/or lower case.
Other ASCII arguments such as <CR> (carriage return) are used.
The Firefly’s COM port is set up with the following factory default settings:
Field Setting
Baud Rate 9600
Parity None
Stop Bit 1
Data Bit 8