MD24 / MD28
– Hardware Description
6
7 Control Signal Connector (P1) Interface
The MD24 / MD28 can accept differential and single-ended inputs (including open-collector and
PNP output). The MD24 / MD28 has 3 optically isolated logic inputs which are located on
connector P1 to accept line driver control signals. These inputs are isolated to minimize or
eliminate electrical noises coupled onto the drive control signals. Recommend use line driver
control signals to increase noise immunity of the driver in interference environments. In the
following figures, connections to open-collector and PNP signals are illustrated.
a) Common-anode
b) Common-cathode
