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 230V AC
off – no 230V AC 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 (1
÷8)
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 /at standard)
ON
– supply at the RJ45 port
Blinking
– short-circuit or output overload
YELLOW LED LIGHT (LINK)
The connection status of LAN
devices, 10/100Mb/s
and data transmission
OFF
- no connection
ON
- the device is connected; 10/100Mb/s
Blinking
– data transmission
OPTICAL INDICATION AT THE UPLINK PORTS
GREEN LED LIGHT
Applies only to the right side port:
No light
(OFF)
- No supply voltage of the switch
ON
- the switch is powered, correct operation
YELLOW LED LIGHT (LINK)
The connection status of
LAN devices, 10/100Mb/s
and data transmission
OFF
- no data transmission
ON
- the device is connected 10/100Mb/s
Blinking
– data transmission
