ProFan Operating Manual
10
Minimum 2-conductor twisted pair plus a shield
Maximum capacitance between conductors – 22 pF/ft.
Maximum capacitance between conductor and shield – 41 pF/ft.
Maximum resistance of 14.5 ohms / 1000 ft.
Characteristic impedance of 80 – 110 ohms
Cable Connectors
Cabling must have a male XLR connector on one end and a
female XLR connector on the other end.
DMX connector configuration
The maximum recommended DMX data link distance between
fixtures is 300 meters (984 ft.)
DMX Termination
Use of a DMX terminator is strongly recommended for the last
fixture in a DMX chain. Comprised of a 120
Ω
resistor across XLR
pins 2 and 3, a terminator prevents electrical reflections from
traveling back down the signal chain and corrupting the DMX data
stream. External XLR terminators such as the ProPlex “Arnold”
are available for such use.