AcueLighting Legend 380 Руководство пользователя - Страница 11

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serial data link without the use of a DMX optically - isolated splitter may result

in deterioration of the digital DMX signal. The maximum recommended

cable-run distance is 500 meters (1640 ft). The maximum recommended

number of fixtures on a single serial data link is 8 fixtures.

Data/DMX Cabling

To link fixtures together you will need DMX data cables. You should use

data-grade cables that can carry a high quality signal and are less prone to

electromagnetic interference.

In any event, the cable should have the following characteristics:

•2-conductor twisted pair plus a shield

•Maximum capacitance between conductors – 30 pF/ft.

•Maximum capacitance between conductor & shield – 55 pF/ft.

•Maximum resistance of 20 ohms / 1000 ft.

•Nominal impedance 100 – 140 ohms

Cable Connectors

Cables must have a male XLR connector on one end and a female XLR

connector on the other end.

CAUTION:

Do not allow contact between the common and the fixture's

chassis ground. Grounding the common can cause a ground loop, and your

fixture may perform erratically. Test cables with an ohm meter to verify correct

polarity and to make sure the pins are not grounded or shorted to the shield or

each other.

Take It To The Next Level: Setting Up DMX Control

Step 1: Connect the male connector of the DMX cable to the female connector

(output) on the controller.

Step 2: Connect the female connector of the DMX cable to the first fixture's