Allied Telesis x330 Series Installation Manual page 112

Chapter 8: Building Stacks with SFP+ Ports S1 and S2
112
2. Power on all the switches of the stack simultaneously. Refer to
"Powering On the Switch" on page 100.
Warning
Power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord.  E3
3. Wait three minutes for the switches to form the stack. They select the
master switch, which assigns itself the ID number 1 and ID numbers 2
to 6 to the member switches.
The stack is now operational. The switches retain their ID numbers
even when reset or powered off.
4. To continue with the installation, go to "Verifying the Stack and
Assigning Priority Numbers" on page 113.