Installation guide
Table Of Contents
- Removable Power Supply and Fan Installation Guide
- Contents
 - About this Guide
 - Compatible Switches
 - Installing a Power Supply Unit or Fan
 - Package Contents
 - Connecting an AC power supply
 - Connecting a PWR01 DC power supply
 - Connecting a PWR05 DC power supply
 - Checking LEDs
 - Removing a Power Supply Unit or Fan
 - Troubleshooting
 - Obtaining Documentation and Resources
 - Standards
 - EC Declaration of Conformity
 
 

Installation Guide
5
Package Contents
Depending on the model, switches are shipped with a single supply unit (PSU), 
either AC or DC. Some models also have fan-only modules (FOM), chassis fan 
modules, or blanking plates.
■ The AT-8948, AT-9924Ts, x900-24XT, x900-24XT-N, and x900-24XS 
switches have a PSU and a FOM installed.
■ The x900-48FE, x900-48FS, AT-9924T, and AT-9924SP switches have a PSU 
and a blanking plate installed.
■ The SwitchBlade
®
 x908 is shipped with dual chassis fan modules and 
blanking plates, but no PSUs.
The following items are included with each factory-installed PSU. Contact your 
authorised Allied Telesis distributor or reseller if any are damaged or missing. 
■ one AC power cord (AC models)
■ one power cord retaining clip (AC models)
■ one warranty card
The following items are included with PSUs when purchased separately:
■ one AC power cord (AC models)
■ one power cord retaining clip (PWR01 and PWR02 AC models only)
■ one clip-on ferrite core (PWR05 only)
■ this Installation Guide
■ one warranty card
The following items are included with fans when purchased separately:
■ this Installation Guide
■ one warranty card










