Coloronix SCC5 - Manual (Page 6)

Page 6—SCC5-IR-DMX / SCC5-RM-DMX Manual V.1.1
Data Connection Data Connection Data Connection Data Connection
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 fixtures should be connected on one data link. Connecting more than 32
fixtures on one serial data link without the use of a DATA optically-isolated splitter may result in
deterioration of the digital DMX signal.
Maximum recommended serial data link distance: 500 m (1640 ft)
Maximum recommended number of fixtures on a serial data link: 32
DMX Data Cable
If installer prefers 3-wire data cables, we suggest a Belden 9481 or equivalent cable which
meets the specifications for EIA RS-485 applications (Use PCL002 DMX hardwiring DMX
coupler). Standard microphone cables cannot transmit Color Ray signal reliably over long
distances. The cable must have the following characteristics:
Type: shielded, 2-conductor twisted pair
Maximum capacitance between conductors:
30 pF/ft
Maximum capacitance between conductor and shield:
55 pF/ft
Maximum resistance: 20 ohms/1000 ft
Normal impedance: 100∼140 ohms
If installer prefers a RJ45/CAT5 Data installation, a RJ45 jack can be used.
Notice: To comply with all local codes and jurisdiction, qualified communications technicians
must do communications wiring.
Notice: Communication cables and AC power lines must not be run in the same conduit.
A. Route Data Cables in series between housing and any communications accessories
using DATA IN and DATA OUT.
B. In order that they may be easily accessed from the room once construction is
complete, secure data cables in the immediate proximity of the housings.
Coloronix strongly recommends clearly marking communication cables in such a way to
indicate the correct order of connection.