6.3. Data Connection
Digital DMX data requires proper data distribution practices be employed to insure proper operation of your lighting fixtures. This
is particularly true of the new
Flex
fixture range which utilizes bi-directional communication with the fixture. Fixtures must be con-
nected in series, i.e., “daisy chained” with the console located at the front end of the line. Data should not be “split off” from the
line. Paralleling data can result in collisions and erratic performance of the lighting fixtures. If more than 24 fixtures are going to
be used or the data cable runs will exceed 100m a splitter/repeater should be utilized. The section below describes the proper
installation and use of the
coemar
dr2
display replicator and
coemar
bidos
dmx splitter/repeater. If there is any question regard-
ing proper wiring and the use of the
dr2
and
bidos
splitter/repeater please contact your coemar dealer. Following proper data
distribution practice will insure optimum performance of your new
Flex
fixtures for years to come.
Cable specification: Cable used for data
should comply with RS-485 standard,
22AWG stranded twisted pair with braided
shield, low capacitance with 85Ω to 150Ω
impedance. The fixture is fitted with both 3
pin and 5 pin XLR connectors wired as fol-
lows:
pin 1 – shield
pin 2 – data (-)
pin 3 – data (+)
pin 4,5 – not used
To insure optimum performance of your
new
Flex
fixture we recommend using
coemar
digital DMX cable. Contact your
coemar
dealer to obtain
coemar
digital
DMX cable.
6.3.1. Grounding
Proper grounding practice for digital data
is also critical to proper performance of
your new
Flex
products. Insure that XLR
pin 1 is
NOT
connected to electrical
ground or line voltage. Also, insure that the
XLR connector body is
NOT
connected to
pin 1 within the connector or to the shield
of the data wire at any point. Use an ohm
meter to verify isolation between the XLR
body and pin 1 shield.
Figure W7 Data Connection and XLR Wiring
3
2
1
Controller
Standard
DMX 512
OUT
out
in
Connect to other
ISPOT Flex
in
out
14
Содержание i spot FLEX
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