Harman Martin Atomic 3000 LED, Руководство пользователя

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10 Atomic 3000 LED user manual
Data link
Warning! Read “Safety Information” on page 3 before installing, powering, operating or servicing
the Atomic 3000 LED.
A DMX 512 data link is required in order to control the Atomic 3000 LED via DMX.
The Atomic 3000 LED has 5-pin XLR connectors for DMX data input and output. The pin-out on all
connectors is pin 1 = shield, pin 2 = cold (-), and pin 3 = hot (+). Pins 4 and 5 in the 5-pin XLR connectors
are not used in the Atomic 3000 LED 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 (+).
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 channels.
You may connect up to 32 Atomic 3000 LED fixtures on one daisy-chained DMX link. To add more fixtures
when the above limit is reached, create a new DMX universe and another daisy-chained link.
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 an amplifier is recommended for longer runs.
• To split the link into branches, use a splitter such as the Martin 4-Channel Opto-Isolated RS-485
Splitter/Amplifier.
• Terminate the link by installing a termination plug in the output socket of the last fixture. The termination
plug, which is a male XLR plug with a 120 Ohm, 0.25 Watt resistor soldered between pins 2 and 3, “soaks
up” the control signal so it does not reflect and cause interference. If a splitter is used, terminate each
branch of the link.
Connecting the data link
To connect the Atomic 3000 LED to data:
1. Connect the DMX data output from the controller to the closest Atomic 3000 LED’s male 5-pin XLR DMX
input connector.
2. Connect the DMX output of the fixture closest to the controller to the DMX input of the next fixture and
continue connecting fixtures output to input.
3. Terminate the last fixture on the link with a DMX termination plug, which inserts a 120 Ohm resistor
across the data hot and data cold terminals to ‘soak up’ the data signal.