LED indicators which provide the ON/OFF status of each point are at the top of the module.
The LEDs are arranged in two horizontal rows with eight green LEDs in each row and a red
LED centered between and to the right of the two rows. This module uses the first six LEDs,
labeled A1 through 6 in the top row and the first six LEDs, labeled B1 through 6, in the bottom
row, for output status. The red LED (labeled F) functions as a blown fuse indicator that turns
ON if any of the fuses should blow. An insert goes between the inside and outside surface of
the hinged door. The surface towards the inside of the module (when the hinged door is
closed) has circuit wiring information, and circuit identification information can be recorded on
the outside surface. The outside left edge of the insert is color-coded red to indicate a
high-voltage module. This module can be installed in any I/O slot of a 5 or 10-slot baseplate in
a Series 90-30 PLC system.
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