Understading dmx – Elation Professional Event MH User Manual
Page 17
Event MH™
©Elation Professional® 17 Event MH™
7. UNDERSTADING DMX
Data Cable (DMX Cable) Requirements (For DMX and Master/Slave Operation):
Your fixture and your DMX controller require a standard 3-pin XLR connector for data input
and data output (see figure below). Be sure to only use properly rated DMX cables for DMX
operation and not standrd audio cables. If you are constructing your own cables be sure to
use two conductor shielded digital cable rated at a 120 ohms (this cable can be purchased at
almost all professional sound and lighting stores). Your cables should be made with a male
and female 3-pin XLR connector on either end of the cable.
Please note; this is not the same as audio microphone cable. Audio cable has a
different resistance rating.
Be sure to follow the above figure 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.