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Logic Controls PD3800U-BK Customer & Pole DisplayLogic-Controls PD3800 Pole Display, 5 mm, 2-Line x 20 Character and USB. Color: Black $198.90 Availability: Ships Same Day Bright blue - green vacuum fluorescent characters are enhanced with an optical filter for better contrast and easier viewing The Logic-Controls PD3800 Series is a two line twenty character pole display that solve the classic I wish I had an extra I-O port problem by using our data pass-through data capabilities. Logic Controls' data pass-through process allows connection of multiple pole displays cash drawers printers and other devices to a single output port. In the pass through mode a pole display monitors the incoming data then decides to display the data or pass it to the next down-stream device.
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