16
7 Operating and display elements
LED indicators DTE105
The device indicates the current status of the interfaces via the status LEDs .
LED AUX
LED green
LED yellow
Status
Note
Off
Off
No voltage supply
UAUX < 5 V
On
Flashes at 2 Hz
Voltage supply too low
5 V ≤ UAUX ≤ 18 V
On
Flashes at 8 Hz
Firmware update running
Do not switch off power supply
On
Off
Voltage supply OK
18 V ≤ UAUX ≤ 36 V
LED Ethernet port 1 / port 2
LED green
LED yellow
Status
Note
Off
Off
No connection to another Ethernet counterpart
Link status "no link"
On
Off
Connection to Ethernet counterpart is
established, no data exchange
Link status "link", "no traffic"
On
Flashes
sporadically
Connection to Ethernet counterpart is
established, data exchange running
Link status "link", "traffic"
LED SF (system failure)
LED red
LED green
Status
Note
Off
Off
No voltage supply
Check the voltage supply
Off
On
Normal operation
-
Flashes
Off
Error at channel level
- Overload
- Temperature
- Internal fault
On
Off
Error at device level
- Undervoltage
- Temperature
Flashes
Flashes
Self-test
Start phase of the device
LED BF (bus failure)
LED red
LED green
Status
Note
Off
Off
No voltage supply
Check the voltage supply
Off
Flashes
Connection to the host controller is established,
there is no data exchange
-
Off
On
Connection to the host controller is established,
there is data exchange
-
Flashing
Off
Connection to the host controller is established,
no valid configuration
Check configuration
On
Off
No connection to the host controller
Check connection
Flashes
Flashes
Self-test
Start phase of the device