Siemens SCALANCE XM-400 - Page 22

Description of the device
2.6 SELECT / SET button
SCALANCE XM-400
22 Operating Instructions, 05/2014, C79000-G8976-C306-03
Enabling/disabling the redundancy manager
To enable/disable the redundancy manager, follow the steps below:
1. Switch to display mode B.
Display mode B is active if the "DM1" LED is lit green and the "DM2" LED is off..
If another display mode is active, you will need to press the "SET/SELECT" button
repeatedly until the "DM1" LED is lit green and the "DM2" LED is off.
2. Hold down the "SELECT/SET" button for 5 seconds.
After 2 seconds,the "DM1", "DM2" and "RM" LEDs start to flash for 3 seconds. At the
same time, the port LEDs go on one after the other.
If you release the button before the 5 seconds have elapsed, the action is canceled.
The result of the action depends on the initial situation:
–
Initial situation:
The redundancy manager and media redundancy are disabled.
Result:
After enabling the redundancy manager, media redundancy is also enabled.
–
Initial situation:
The redundancy manager and media redundancy are enabled.
Result:
After disabling the redundancy manager, media redundancy remains enabled.