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Legrand PDU User Guide 173
2. Now disconnect it from the cascading chain.
To swap the master and slave device:
In the Bridging mode, you can swap the master and slave devices by simply disconnecting ALL
cascading cables from them, and then reconnecting cascading cables. No changes to software settings
are required.
In the Port Forwarding mode, you must follow the procedure below:
a. Access the slave device that will replace the master device, and set its role to 'Master', and correctly
set the downstream interface.
b. Access the master device, set its role to 'Slave'.
c. Swap the master and slave device now.
You must disconnect the LAN cable and ALL cascading cables connected to the two devices first
before swapping them, and then reconnecting all cables.
To change the cascading mode applied to a chain:
1. Access the last slave device, and change its cascading mode.
If the new cascading mode is 'Port Forwarding', you must also set its role to 'Slave'.
2. Access the second to last, third to last and so on until the first slave device to change their cascading
modes one by one.
3. Access the master device, and change its cascading mode.
If the new cascading mode is 'Port Forwarding', you must also set its role to 'Master', and correctly
select the downstream interface.
The following diagram indicates the correct sequence. 'N' is the final one.
M = Master device
S = Slave device
