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Control Input
J-PACK Series dimmer packs are equipped with DMX input and thru, as well as two (2) auxiliary
dry-contact inputs. XLR connectors are provided on the front panel of the dimmer pack chassis, and
breakaway type connectors are provided internally for permanent installation applications.
All control input wiring is classified as CLASS 2 LOW VOLTAGE.
Breakaway type connector termination:
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Use wire size #28 to #12 AWG copper wire only, rated for 167°F (75°C) minimum.
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Strip insulation length to 0.3" (7.5mm).
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Use a 1/8" flathead screwdriver - torque terminations to 3.6 IN-LBS (0.4 NM).
WARNING: For internal connection use copper wire only, rated for 167°F (75°C) minimum.
DMX Input and Thru
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DMX connects to the 5-pin XLR connectors located on the front panel.
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DMX alternatively connects to the internal 3-pin breakaway type connectors.
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Complies with USITT DMX512-A (ANSI E1.11 - 2008), Standard protocol for digital data control.
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Recommended cable is Belden 9829, 9842, Cat 5 or equivalent (low-capacitance, twisted pair).
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Wiring must follow a daisy-chain topology.
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Maximum of 32 receiving devices on a single DMX line.
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Maximum cable length is 1,500 feet (455 meters).
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For more information, Google DMX, or visit: http://old.usitt.org/DMX512FAQ.aspx
NOTE: Do not use the front panel XLR and internal DMX connections simultaneously.
Ensure only the last (end-of-line) DMX receiving device is terminated! Refer to menu item
DMX TERM on page 18 for details.
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Output Connector/Receptacle Diagrams
ED = 15A Duplex Edison (NEMA 5-15)
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Single or dual Edison power cord option only.
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SP = 20A Stage Pin (Bates)
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TL = 20A Twist Lock Ground (TLG) (NEMA L5-20R)
SO = 19-Pin Socapex
TB = Terminal Block
WWW.JOHNSONSYSTEMS.COM
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