Allied Telesis SwitchBladex8112 Installation Manual page 120

Chapter 6: Installing the Power Supplies
Note
Retain the tie wrap that comes with the power supply. You will use it
to secure the power cord to the chassis when you power on the unit
in "Powering On AT-SBxPWRSYS1 or AT-SBxPWRSYS2 AC
System Power Supplies" on page 185.
120 Section II: Installing the Chassis