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KDU Plus™ — Printer Accessory
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P1052685-001 GC420d™ User Guide 5/23/2012
KDU Plus™ — Printer Accessory
The KDU Plus is a terminal device with memory for storing files and maintaining one or more
remote printers. The KDU Plus has a larger laptop style keyboard than the Zebra’s original
KDU design.
The KDU Plus is designed for the following functions:
• List label forms stored in printer
• Retrieve label forms stored in printer
• Input variable data
• Printing labels
• File storage and transfer
The KDU Plus is designed to work with ZPL and EPL printers by dynamically detecting and
switching the printer’s communications configuration (DTE or DCE) to match your Zebra
printer. By default, the KDU Plus will start up forms mode. This is compatible with the
operation of Zebra’s original KDU. The KDU Plus is configurable to work in ZPL or terminal
modes too.
The KDU Plus has file transfer and storage capabilities. This is great for maintaining remote
and stand alone printers with label forms, logos and smaller font sets.
The KDU Plus has two configurable serial port and a PS/2 port to connect to other data input
devices such as scanners, weigh scales, etc..
The +5 volts from the printer’s serial (pin 9) provides power for the KDU Plus and any
additional input devices attached to the KDU Plus.
Maximum total current draw for the GC420 printer’s serial (and parallel) port: 750mA
The KDU Plus’s current without external input devices attached is: 50mA
45mA*
120mA*
25mA*
( 45mA + 120mA + 25mA ) + 50mA < Max. Current
50mA
* - Not real values
Current Draw
Caution • The KDU Plus’s input ports (AUX1, AUX2, and PS/2 style) are not fused.
Exceeding the total current draw available could damage an input device, KDU Plus, or
the printer.