Control By Universal Dmx Controller; Connection - Professional Entertainment Technology BEAM-2R/PRO User Manual

6. Control By Universal DMX Controller
6.1 Connection
1. At last unit, the DMX cable has to be terminated with a terminator. Solder a 120‐ohm 1/4W
resistor between pin 2(DMX‐) and pin 3(DMX+) into a 3‐pin XLR‐plug and plug it in the
DMX‐output of the last unit.
2. Connect the unit together in a "daisy chain" by XLR plug cable from the output of the unit to the
input of the next unit. The cable cannot be branched or split to a "Y" cable. DMX 512 is a very
high‐speed signal. Inadequate or damaged cables, soldered joints or corroded connectors can
easily distort the signal and shut down the system.
3. The DMX output and input connectors are pass‐through to maintain the DMX circuit, when one
of the units' power is disconnected.
4. Each lighting unit needs to have a DMX address to receive the data by the controller. The address
number is between 0‐511 (usually 0 & 1 are equal to 1).
5. The end of the DMX 512 system should be terminated to reduce signal errors.
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