SYSTEM OVERVIEW
The system provides a comprehensive DMX distribution and monitoring installation.
The Merger-boosters are connected through a central network controller to allow the DMX status (signal quality) to be monitored at a controlling PC.
In addition the Merger-boosters hold a series of preset cues which may be activated from the controlling PC or a series of Command stations which are handled by the central controller.

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NETWORK CONTROLLER SYSTEM:
The system consisting of a series of Merger-Boosters and Digital OCUs is interconnected via a STATUS/BACKUP serial data link to a Global Dimmer Controller (GDC) which acts as the heart of the system and provides an interface between a PC System Monitor and the system.

MERGER-BOOSTER:
The Merger-Booster units in the system while acting as distributors of DMX signals store a series of preset cues which are activated on the receipt of commands from the Global Dimmer controller to which they are connected via a serial STATUS/BACKUP line.
Each carries an individual address which may be programmed through the system.

GLOBAL DIMMER CONTROLLER (GDC):
The Global Dimmer Controller handles the commands from the distributed command stations and controls the Merger-Boosters comprising the dimmer control installation.

It handles the following system functions:

· Distributed command station polling.
· Transmission of preset cue activation commands to the Merger-Boosters.
· Handling and retransmission of commands and data from the PC Monitor program.

It is connected to the system as follows

· The STATUS/BACKUP data link outputs to the system Merger-Boosters and D_OCUs
· The COM1 serial data link output to the PC Monitor
· The STATION LINK outputs to the distributed command station bus.

DMX status requests, preset storing and other commands from the PC Monitor are passed through the GDC to the Merger-Booster and Digital OCU network via the STATUS/ BACKUP link.

Preset cue activation commands entered at the command stations are transmitted to the Merger-Boosters over the BACKUP link in function of the fade times stored in the GDC.

PC MONITOR UTILITY:
The PC monitor utility communicates over a serial data link with the Global dimmer controller handle the following system level operations:
Storing of the current DMX system wide source cue in a specific preset in the network Merger-Boosters
Download of fade-in and fade-out times to the GDC for each preset cue stored in the Merger-Boosters.

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