ELM Video DMG User Manual

ELM Video
Technology,
Inc.
The DMG is a 1~3 input 1 output DMX512 merger with versatile uses. Combines two or three DMX512
signals or universes into one universe, by a selected mode type; HTP (Highest Takes Priority), Append, or
Backup. An additional DMG-PCB can be installed/added to add a third input , or multiple DMG's can be
combined to merge more than two universes or provide multiple functions. By configuring several DMG's in
different mode types, each can perform a specific task. For example - multiple DMG's could be configured
to merge two or more universes into one universe, the combined output could be appended to another
universe, and then the final output could operate in parallel with a backup DMX512 source with auto switch
over.
Loop the power cord through the strain relief. Connect the power supply to the power input connector
and apply power. Connect a DMX512 source into the input connectors (5 or 3 pin) and insure the data LED
is illuminated (showing data is present). The DMG will work with only one (A or B) data input connected.
Use the 'Merged Output' connector to source up to 32 DMX512 devices ( depending on the devices and
configuration). As with any DMX512 daisy chain, each output must be terminated at the end of each daisy
chain.
Fuse
DMX512
Input B
DMX512
Input A
Before connecting the A, B or C inputs it is recommended that the output and/or power be disconnected to prevent
false data transmission that could blink or trigger the receiving DMX system.
NOTE - ALWAYS KEEP THE DMG ACCESSIBLE ! - INSTALL THE DMG NEAR OPERATORS AND THE
GENERATING DEVICES. NEVER INSTALL ON A TRUSS OR HARD TO REACH AREA. Because the DMG is a
DMX SIGNAL GENERATING DEVICE, keeping the unit accessible is essential, in the event of a cable failure or unit
malfunction the output may send false data which could cause erratic behavior with the receiving DMX system,
could be dangerous to the public, and could cause damage to the receiving equipment and lights.
DMX 2X1 / 3X1 MERGER USER GUIDE
DMG OVERVIEW
DMX512
Merged Output
DMX512
Input C
(Optional)
CONNECTION
Power & DMX Input
Indicator LEDs
Face Plate Screws
Pg 1