Allied Telesis AlliedWare Plus GS980MX Series Installation Manual page 149

Warning
Power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord.  E3
Note
Pluggable Equipment. The socket outlet shall be installed near the
equipment and shall be easily accessible.  E5
2. Wait two or three minutes for the switches to select a master switch
and to assign the ID numbers.
At this point, the stack is operational. The ID numbers are
automatically stored in special files in the flash memories of the
switches and are retained by the devices even if you reset or power
cycle the stack.
To continue with the installation, go to "Starting a Local Management
Session" on page 150 and "Verifying the Stack" on page 153.
GS980MX Series Installation Guide for Virtual Chassis Stacking
149