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To remove a PSU, chassis fan module or FOM 1. If you are removing a PSU, disconnect the power supply. For AC PSUs, turn off the main power source to the PSU and disconnect the power cord. For DC PSUs, push and release the Run/Standby control to the Standby (off) position. The Run/Standby control is in the Run (on) position when it is depressed, and in the Standby (off) position when it is not depressed. Disconnect the supply cable wires from the circuit breaker. 2. Remove the PSU, chassis fan module or FOM from the switch. 3. Cover the empty bay with a blanking plate to prevent dust and debris from overheating or damaging the switch. Removable Power Supply and Fan Troubleshooting If the PSU does not function as expected: ¦ Check that all cable connections are correct and secure. ¦ On the PWR01 DC model, check that the Run/Standby switch has been pressed and is in the On position. ¦ On the PWR05 AC model, check that the Run/Standby switch has been set to Run (position 1). ¦ Check that the PSU is receiving the correct AC voltage (AC models). ¦ If LEDs indicate a PSU fault, replace the PSU or have your authorised Allied Telesis distributor or reseller service it. Troubleshooting information is also in the x900 Series Switch and SwitchBlade® x908 Hardware Reference. You can download this document from Installation Guide Obtaining Documentation and Resources The complete document set for x900 Series switches and SwitchBlade x908 includes: ¦ this Installation Guide ¦ the x900 Series Switch and SwitchBlade® x908 Installation and Safety Guide, which describes how to install the switch and includes important safety and statutory information ¦ the x900 Series Switch and SwitchBlade® x908 Hardware Reference, which contains detailed information on x900 Series and SwitchBlade x908 switches and their hardware features ¦ the x900 Series Switch and SwitchBlade® x908 Expansion Module Installation Guide, which describes how to install expansion modules in x900 Series and SwitchBlade x908 switches ¦ the AT-9900s Series Switch Expansion Module Installation Guide, which describes how to install expansion modules in AT-9900s Series switches ¦ the x900 Series Switch AlliedWare® Operating System Software Reference, which contains detailed information on configuring switches running the AlliedWare® operating system ¦ the AlliedWare Plus™ Operating System Software Reference, which contains detailed information on configuring switches running the AlliedWare Plus™ operating system You can download these documents and updates from You need Adobe® Acrobat® Reader® software to view, search, or print these documents. You can download it from Other resources How-To Notes describe a range of standard Allied Telesis solutions, and include technical tips and guides to configuring specific hardware and software features. You can download the latest How-To Notes from MIBs supported by Allied Telesis products can be downloaded from Microsoft® Visio® stencils for Allied Telesis products can be downloaded from Removable Power Supply and Fan AT-TFTP Server for Windows is a TFTP (Trivial File Transfer Protocol) server for transferring software versions, configuration scripts and other files between a PC and the switch. You download AT-TFTP Server from CD-ROM Some products also ship with a CD-ROM containing documentation and resources. Contacting us With locations covering all of the established markets in North America, Latin America, Europe, Asia, and the Pacific, Allied Telesis provides localized sales and technical support worldwide. To find the representative nearest you, visit us on the Web at Installation Guide Standards Products in this document meet the following standards: Category Approval Agency and Requirement UL60950-1 CAN/CSA-C22.2 No. 60950-1-03 EN60950-1 AS/NZS 60950.1 Electromagnetic Compliance FCC CFR47 Part 15 Class A EN55022 Class A VCCI Class A AS/NZS CISPR22 Class A CNS 13438 Class A EN61000-3-2/3 Immunity EN55024 U.S. Federal Communications Commission RADIATED ENERGY Note: This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with this instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. Note: ...

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