16
RUSH™ MH10 Beam FX User Manual
Control data link
A DMX 512 data link is required in order to control the fixture via DMX. The
fixture has 3-pin and 5-pin XLR connectors for DMX data input and output.
Up to 32 devices can be linked together on a single daisy chain. The total
number of fixtures in one 512-channel DMX universe is limited by the number
of DMX channels required by the fixtures. Note that if independent control of a
fixture is required, it must have its own DMX channels. Fixtures that are
required to behave identically can share the same DMX address and
channels. To add more fixtures or groups of fixtures when the above limits are
reached, add a DMX universe and/or split the daisy-chained link into branches
using a powered DMX splitter.
Tips for reliable data transmission
Use shielded twisted-pair cable designed for RS-485 devices: standard
microphone cable cannot transmit control data reliably over long runs. 24
AWG cable is suitable for runs up to 300 meters (1000 ft.). Heavier gauge
cable and/or a DMX buffer is recommended for longer runs. The pin-out on all
connectors is:
•
pin 1 = shield
•
pin 2 = cold (-)
•
pin 3 = hot (+).
Pins 4 and 5 in the 5-pin XLR connectors are not used in the fixture but are
available for possible additional data signals as required by the DMX512-A
standard. Standard pin-out is pin 4 = data 2 cold (-) and pin 5 = data 2 hot (+).
