Status and Maintenance
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6.
Status and Maintenance
6.1
LED indicators
There are six LEDs visible on the top of the device; the function of each is described in the tables below.
Figure 21
The six LEDs on the FreeCon Active PROFINET-POF-Repeater
6.1.1
The FO1 and FO2 LEDs
These two LEDs show the status of the fibre-optic transmission lines on ports 1 (FO1) and 2 (FO2).
Colour
Status
Indicates
Yellow
On (solid)
100 Mbps link on TP port is active and transmission okay.
Yellow
Blinking at 1 Hz
PROFINET I/O flash/blink identification (both LEDs blink at the
same time)
Off
No link,
or
Fibre optic RX power out of range (functionality enabled by the
PROFINET I/O controller.
If one of the FO LEDs is off, check that the port is connected to a switch and that the fibre cables are proper-
ly attached (with correct polarity).
6.1.2
The US1 and US2 LEDs
These LEDs are controlled by the hardware as follows.
Colour
Status
Indicates
Green
On
Power is being supplied to the US1 (L1) or US2 (L2) power input.
Off
Power not being supplied to the US1 (L1) or US2 (L2) power input,
or voltage below 18 V.
