T48S used with power adapter AND POE

[complex1]

(01-07-2019 04:36 PM)mrfokus Wrote:  Hi!
To lower the charge of our POE Switch I connected a DC power adapter DC 5V (not original but with the right voltage) with the T48S. Since then there is only the red light permanently on without any further function.

Did I convert my device the quickest way to e-rubbish?

Thanks a lot and happy new year to the IP specialistst!

Jürgen

Hi Jürgen,

Please note:

As stated in the Admin Guide:
If both PoE cable and power adapter is connected to the phone, then the IP phone use the PoE preferentially.

Warning message in the Quick Start Guide:
The IP phone should be used with Yealink original power adapter (5V/2A) only. The use of the third-party power adapter may cause the damage to the phone.

If the power LED indicator is on, the keypad is usable but the phone screen is black, please reboot your phone or try to reset the phone to factory default and try again.

Hope this will help.