SEH IH-304, User Manual

Page: 13 / 40

User Manual [en] 9
LED Display
The LEDs of the IH-304 provide information about its status.
LED Action Color Description
USB ports
1–4 permanently
on
permanently
on
green
red
The USB port is
functional.
The USB port was
deactivated for safety
reasons or an error
occurred.
Please contact the
support

3.
Host
connection permanently
off
permanently
on
–
green
There is no
connection to the
host.
There is a connection
to the host.
If the power LED is on
at the same time, the
IH-304 is operational.
Power permanently
off
permanently
on
–
yellow
The IH-304 is not
functional (it is not
supplied with power
and/or there is no
connection to the
host).
If the host connection
LED is on at the same
time, the IH-304 is
supplied with power
by at least one of the
two power supplies.