Doug Fleenor Design 125EE-WALL - Manual

DOUG FLEENOR DESIGN, Inc
Model 125EE-WALL Enhanced 2 DMX512 Isolated Splitter
Safety Notice:
There are no user serviceable parts in the Model 125EE-WALL splitter. Refer any service needs to a qualified
service technician.
Description:
The Enhanced Splitter includes all the features of our standard models with added protection to meet the
needs of harsh operating conditions. As with our standard splitters, all outputs are isolated from the input and
from the other outputs by optical couplers. Every output has its own power supply and line driver. For
protection against electrical storms, the Enhanced Splitter adds four transient absorbers on the input, three
on each output, and one on the power line. To protect against miswiring, the Enhanced Splitter has fuses on
the DMX512 input and outputs that protect the Splitter against damaging voltages up to 120 volts. Indicators
on each output display termination and fuse status. Indicators on the input display signal present and valid
DMX.
The 125EE-WALL is designed to be mounted on any flat surface. Signal wires are connected to the unit using
pluggable terminal block connectors.
The Enhanced Splitter allows connection of DMX receivers (dimmers, color changers, moving lights, etc.) in
a star configuration as opposed to a daisy chain configuration. In a star configuration, each control cable
is run to a central point, in this case the splitter. In a daisy chain configuration all the devices are connected
on one control cable, the output of one feeding the input of the next.
Connections:
Line Cord. The splitter is fitted with a non-detachable line cord with a male parallel blade connection.
The splitter is designed to work on any voltage between 100 and 240 volts, 50 or 60 Hz. Alternate power
cords are available to adapt to local power outlets. If a choice of line voltages are available, selecting the
lower voltage will allow the splitter to run cooler.
DMX Input. The DMX signal is applied to the DMX IN terminal block connector.
DMX Outputs. The DMX signal is available on all five terminal block output connectors labeled A - E. Each
output is separately buffered. A short or failure on one output cannot affect another output.
Termination. For maximum reliability each DMX512 control run needs to be terminated. The input to the
splitter is automatically terminated. Each output that is used needs to be terminated at the end of its control
run. Sometimes termination is built into the receiver. In other cases a terminator should be plugged into the
feed-through connector of the last device. Unused outputs do not need to be terminated.
Indicators:
Power Indicator. There is no separate power indicator. When power is applied all five fuse indicators should
illuminate.
DMX Indicator. The green DMX indicator will illuminate when a valid DMX512 signal is being received. The
DMX Validator
TM circuit checks for proper break time, mark after break, and null start code. If any of these
timings are outside the DMX512 specification range the DMX indicator will not illuminate.
Signal Indicator. The green signal indicator will illuminate when any signal is being received. This indicator
is useful if the splitter is being used for a digital protocol other than DMX512. It can also be useful in
troubleshooting a DMX512 system because it will show that a signal is being received but (unless the DMX
indicator is on) there is an error.