The 1002 is a opto-splitter feature one isolated input and four buffered outputs. Contain One DMX512 input, Four buffered DMX512 outputs, One passive DMX512 thru connector. An essential part of any permanent DMX512 distribution system, the DIN-rail mountable eDIN #1002 enables ‘star’ wiring configurations of DMX512 data lines. Each buffered output is isolated from the DMX input and protects all connected end-devices from harmful electrical faults and ground loops.