ADJ PAR Z120 RGBW User Instructions page 9

PAR Z120/ZP120 RGBW
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 in
contact with the XLR's outer casing. Grounding the shield could cause a short
circuit and erratic behavior.
Special Note: Line Termination. When longer runs of cable are used, you
may need to use a terminator 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
possibilities of erratic behavior.
Figure 4
DMX512 IN
3-PIN XLR
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PAR Z120/ZP120 RGBW User Instructions Page 9
DMX Set Up