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USB DIRECTORS RS-232
4. Operation
Once you finish installing the hardware and software of
the USB Director RS-232, it will operate continuously
without requiring further intervention on your part.

4.1 Interpreting the LED (IC135A, IC1001A, and IC1002A Only)

The IC135A, IC1001A, and IC1002A models have a
tricolor STATUS LED that tells you various things about
how the unit is operating:
• It lights red to indicate a loss of USB
communication with the host. If the loss is due to
unplugging the USB Director RS-232, the LED will
blink red for a few moments before turning green
when you reconnect the unit. If the loss wasn’t
caused by unplugging the unit, the LED indicates
a problem with the drivers, which may need to be
reinstalled. The LED will also blink red during
installation until the installation is complete.
• It lights amber to indicate serial-port activity on the
USB Director RS-232. The LED might also flash
amber briefly during installation.