KEYENCE DL-EP1 - Manual (Page 13)

1-1 DL-EP1 Overview
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- EtherNet/IP Compatible Network Unit DL-EP1 User’s Manual (GT2) -
Sensor amplifiers supporting D-bus are connectable. You can connect one sensor to
the DL-EP1 as a main unit and one or more sensors to the main unit as expansion
units. (D-bus is the name of KEYENCE's wiring-saving system for sensor amplifiers.) If
the sensor amplifier is D-bus compatible, different models can be connected together.
How many and what types of sensor amplifiers can be connected depends on the
sensor amplifiers or units to be connected. Please inquire for details.