LED indicators
Ethernet

An LED for each of the eight channels shows the current status.
LED |
Display | |
---|---|---|
Link |
off |
No connection |
on |
Connection available (link) | |
flashing |
Data transfer (act) |
Supply voltage

LED | Display | Meaning |
---|---|---|
24 V Us (control voltage) | off | the power supply voltage, Us, is not present |
green illuminated | the power supply voltage, Us, is present | |
24 V Up (peripheral voltage) | off | the power supply voltage, Up, is not present |
green illuminated | The power supply voltage, Up, is present |
The peripheral voltage Up is not required in the CU2608 and is therefore passed through.