XTBA SMART SPLITTER Manual Page
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Product #01501 - Issue C 11/07/2011
© XTBA 1986 – 2012
XTBA SMART SPLITTER
The XTBA SMART SPLITTER is a single input, five output data splitter with
loop through isolation and buffer amplifiers designed for use with
lighting/moving light controls using USITT DMX512 (1990/1986) protocol.
In addition to the five buffered outputs the unit also has a data loop through
so in the event of power failure data will still pass through the unit. Opto
isolation is provided between the input and the five outputs. The five outputs
are fully buffered.
The SMART SPLITTER has an automatic termination system thus cutting out
the need for termination switches, which if understood, can get switched to
the wrong position causing potential data problems.
The Smart Splitter is available in three formats 1U 19" Rack front or rear
connectors and 'Cased' for use with a hook clamp. Both types are identical in
connectors and all internal electronics. Power for the 19" rack unit is via a
fused (2A a/s) Euro chassis plug and trailing socket. The case type has a
fixed lead and is fused via a front panel fuse holder.
SYSTEM OPERATION
DISPLAYS
The Smart Splitter will display the following.
MAINS ON SWITCH will be lit when the unit is powered and switched on.
POWER ON via the red LED. Show that the on board power supply is active.
DATA active via the green LED. In normal operation the data LED may flash
as it detects the data breaks. Slow data or long breaks will also make the data
LED flash. The data LED tells you their is something happening on the line. It
will not tell you if the data is good or indeed DMX512.
TERMINATED via the amber LED (LED not fitted on rear connector units).
The Smart Splitter will normally run terminated and the LED will be lit. If the
LOOP THROUGH is used the unit will switch out the termination as it is no
longer the last unit in the line. Thus the incoming line will always be correctly
terminated.
LOOP THROUGH
The loop through XLR is hard wired e.g. un-buffered (including pins 4+5) from
the input thus data will still pass through the Smart Splitter in the event of
power failure.
Looped through data can also be taken from any of the five isolated outputs,
gaining the isolation, but data will be lost in the event of power failure.
