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IMPORTANT SAFETY INFORMATION
The following general safety precautions have to be observed during all phases
of operation, service, and the repair of this equipment. Failure to comply with
these precautions or with specific warnings in this manual violates safety
standards of design, manufacture, and the intended use of this equipment.
Do not operate in an explosive atmosphere!
Do not operate this equipment in the presence of flammable gases or fumes.
Operation of any electrical instrument in such an environment constitutes
a definite safety hazard. Device should never be placed near or over a heat
register or other source of heated air or it should not be installed or operated
without proper ventilation.
Mains AC 85-265V connection
AC power is connected to the splitter via Neutrik PowerCon blue connector.
Standard supply is UNISCHUKO lead with Neutrik PowerCon. Always respect the
marking of L and N on the connector for correct wiring of Line and Neutral.
Battery connection
Battery for DST4 can be connected to screw terminal on the rear side of the
device. There is no strict requirement of polarity – AC or DC power with the
limitation of voltage 12-24V can be used.
DMX connection
DMX connectors are located on both sides of the splitter board. They are
separated into two groups. First group is wired in ratio 1:1 and marked as DMX
input and DMX thru. This line is not optically isolated and when the device is the
last in line, it should be terminated by the termination resistor of 120ohm wired
between pins 2 and 3.
The other part of the splitter consists of 4-way optically isolated lines marked
with letters A-D. Each line has a separate power supply, line driver and indication
of signals D+, D- on both signal lines. These LEDs are active when the splitter is
retransmitting DMX signal and there is no short circuit between data lines.
In case of a short circuit between data pins D+/D- and the CMN pin, the LED
connected to the data line will go off.
Pin 1
Common
Pin 2
Data-
Pin 3
Data +
