B&B Electronics MESR9xx Manual De Usuario

To reload Factory Defaults, press and hold the Mode switch for more than 10 seconds. 
The LED indicators respond as follows: 

1.  The Ready LED blinks three times per second while the button is being pressed. 

2.  The Modbus gateway is in Factory Default Mode when: 

•  On the MESR901: Port 1 LED and the Ready LED are both On. 
•  On MESR902x models: Port 1 LED and the Port 2 LED are both On. 

The Modbus gateway reloads all factory default configuration parameters. 

3.  The LEDs go back to their normal states when the device resumes normal operation.