7
3. Indication of the device operation
3.1 LED indication of operating status
The PSU is equipped with two diodes on the front panel:
RED LED:
on – the PSU is supplied with 230 V
off – no 230 V supply
GREEN LED:
on – DC voltage in the AUX output of the PSU
off – no DC voltage in the AUX output of the PSU
3.2 Optical indication of the switch operation (see Table 8).
Table 8. Indication of the switch operation
OPTICAL INDICATION OF THE SWITCH's POWER SUPPLY
GREEN LED LIGHT (Power)
Indication of the switch's
power supply
OFF
– no power supply of the switch
ON
– power supply on, normal operation
OPTICAL INDICATION AT THE PoE PORTS (1
÷4)
GREEN LED LIGHT (PoE)
Indication of the PoE power
supply at the RJ45 ports
OFF
- no power supply at the RJ45 port (the device is not connected or not compliant with
the IEEE802.3af standard)
ON
– supply at the RJ45 port
Blinking
– short-circuit or output overload
YELLOW LED LIGHT (LINK)
The connection status of LAN
devices, 10MB/s or 100Mb/s
and data transmission
OFF
- no connection
ON
- the device is connected; 10Mb/s or 100Mb/s
Blinking
– data transmission
OPTICAL INDICATION AT THE UP LINK PORTS
GREEN LED LIGHT
OFF
- no connection/ the device is connected 10Mb/s
ON
– the device is connected 100Mb/s
YELLOW LED LIGHT (LINK)
The connection status of
LAN devices, 10MB/s or
100Mb/s and data
transmission
OFF
- no data transmission
ON
- the device is connected: 10Mb/s or 100Mb/s
Blinking
– data transmission
