Martin ATOMIC 3000 Manual de usuario descargar pdf (Pagina 11)

Atomic 3000 user manual Controller operation 11

ONTROLLER

OPERATION

This section describes how to operate the Atomic 3000 with a DMX controller.

DATA CONNECTION

The Atomic 3000 provides both 3-pin and 5-pin XLR sockets for data

connection. The pin-out on all sockets is pin 1 to shield, pin 2 to cold (-), and pin

3 to hot (+). There is no connection to pins 4 and 5. The sockets are wired in

parallel: both inputs connect to both outputs. For reliable data transmission use

one input and one output!

To connect the data link

1 Connect the DMX data input from the controller to the Atomic 3000’s 3-pin or

5-pin input (male) socket.

2 Connect up to 31 additional fixtures output-to-input.

3 Insert a termination plug in the output of the last fixture on the link.

DATA CONNECTION TIPS

• 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.). Use heavier gauge

cable and/or an amplifier for longer runs.

• Never use both outputs to split the link. To split the serial link into branches

use a signal splitter.

• Do not overload the link. Up to 32 devices may be connected on a serial link.

• 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.

• Use a phase-reversing cable to connect older Martin fixtures with reversed

polarity sockets (pin 3 cold).

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Martin ATOMIC 3000 Manual de usuario Pagina 11