
SFP/SFP+ installation notes
To ensure proper operation of your switch, use only the genuine Aruba SFP/SFP+ transceivers
supported by your switch. When selecting a fiber SFP device, make sure it can function at a
temperature that is not less than the recommended maximum operational temperature of the
product. Use only approved Laser Class 1 SFP transceivers.
Use only genuine Aruba SFP/SFP+ transceivers
Non-Aruba SFP/SFP+ transceivers are not supported. Use of genuine Aruba products ensures that your network
maintains optimal performance and reliability. Should you require additional transceivers, please contact an Aruba
sales representative or an authorized reseller. For transceiver support information for your switch model, see the
support matrixes in the in ArubaOS-Switch Transceiver Guide on the Hewlett Packard Enterprise Information
Library at www.hpe.com/networking/ResourceCenter.
Hot Swapping SFP/SFP+ transceivers
Supported SFP/SFP+ transceivers that you can install in your Aruba switch can be “hot swapped” – removed and
installed while the switch is receiving power. However, you should disconnect the network cables from the
SFP/SFP+ transceivers before hot-swapping them.
When you replace an SFP/SFP+ transceiver with another of a different type, the switch may retain selected port-
specific configuration settings that were configured for the replaced unit. Be sure to validate or reconfigure port
settings as required.
SFP/SFP+ connections to devices with fixed speed/duplex configurations
When connecting a device to your switch port that contains an SFP/SFP+ transceiver, the speed and duplex
settings of the switch port and the connected device must match. Otherwise, you may not get a link. For some
older network devices, including some older Hewlett Packard Enterprise devices, the default speed/duplex
settings may be predefined (for example, to 1000 Mbps/Full Duplex), or otherwise set differently from the default
configuration of your switch port. Because of these default speed/duplex considerations, you should make sure
that devices connected to your SFP/SFP+ ports are properly configured. At a minimum, make sure the
configurations match.
Switch Operating System Software
For the latest software version supported by your switch, visit http://www.hpe.com/networking/support.
For software installation and management, the Basic Operation Guide and other software documentation for your
switch at www.hpe.com/networking/ResourceCenter.
Regulatory information
For important safety, environmental, and regulatory information, see Safety and Compliance Information for
Server, Storage, Power, Networking, and Rack Products, available at http://www.hpe.com/support/Safety-
Compliance-EnterpriseProducts.
Power cords
Use one of the following power cords for an Aruba 2540 switch:
Chapter 1 Aruba 2540 24G/48G Switch Quick Setup Guide and Safety/Regulatory Information 11