Fixture linking, Data cabling, Dmx data cable – ILUMINARC Ilumipanel™ 28 IP User Manual

Page 10: Signal distribution, Ixture, Inking, Abling, Etup

Ilumipanel 28 IP Optic RGB User Manual (Rev. 6)

ETUP

Fixture Linking

You will need a serial data link to run light shows of one or more fixtures using a DMX-512 controller

or to run synchronized shows on two or more fixtures. The combined number of channels required by

all the fixtures on a serial data link determines the number of fixtures the data link can support.

Important:

Fixtures on a serial data link must be daisy chained in one single line. To comply with the EIA-
485 standard no more than 32 devices should be connected on one data link. Connecting more
than 32 fixtures on one serial data link without the use of a DMX optically-isolated splitter may
result in deterioration of the digital DMX signal.

Note!:

USITT recommends limiting the total length of the DMX cable (from the first fixture/controller to
the last fixture) to 300 ~ 455 m (985 ~ 1,500 ft). The maximum recommended number of fixtures
on a serial data link is 32 fixtures.

Data Cabling

To link fixtures together you must obtain data cables. If you choose to create your own cable please

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

interference.

DMX Data Cable

Standard microphone cables cannot transmit DMX data reliably over long distances. The cable will

have the following characteristics:

2-conductor twisted pair plus a shield
Maximum capacitance between conductors – 30 pF/ft.
Maximum capacitance between conductor and shield – 55 pF/ft.
Maximum resistance of 20 ohms / 1000 ft.
Nominal impedance 100 – 140 ohms

Signal Distribution

Connect the bare-ended signal cable from the product to a signal distribution box as indicated below.