External Control Commands

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

 

 

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FOCUS Enhancements 3.2 user manual LDV Control Commands, Introduction, COM Port Settings