Ldv control commands, Introduction, Com port settings – FOCUS Enhancements 3.2 User Manual

Page 155: Introduction com port settings

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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

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