ADJ Mega Bar 50RGB RC User Manual page 8

Mega Bar 50RGB RC Set Up
Notice: Be sure to follow figures two and three when making your own cables. Do not use the ground
lug on the XLR connector. Do not connect the cable's shield conductor to the ground lug or allow the
shield conductor to come into contact with the XLR cable's outer casing. Grounding the shield could
cause a short circuit and result in erratic behavior.
Special Note: Line Termination. When longer runs of cable are used, you may need to use a ter-
minator on the last unit to avoid erratic behavior. A terminator is a 110-120 ohm 1/4 watt resistor
which is connected between pins 2 and 3 of a male XLR connector (DATA + and DATA -). This unit is
inserted in the female XLR connector of the last unit in your daisy chain to terminate the line. Using a
cable terminator (ADJ part number Z-DMX/T) will decrease the chances of erratic behavior.
5-Pin XLR DMX Connectors. Some manufacturers use 5-pin DMX-512 data cables for DATA trans-
mission in place of 3-pin. 5-pin DMX fixtures may be implemented in a 3-pin DMX line. When insert-
ing standard 5-pin data cables into a 3-pin line, a cable adaptor must be used. These adaptors are
readily available at most electronics stores. The chart below details a proper cable conversion.
ADJ Products, LLC - www.adj.com - Mega Bar 50RGB RC User Manual Page 8