SFP28 active optical cable (for interconnecting devices) NOTE: • HPE 25-Gigabit transceiver modules and cables are subject to change over time. For the most recent list of HPE 25-Gigabit transceiver modules and cables, contact HPE technical support or marketing staff.
• Dispersion occurs because a fiber transmits light with different wavelengths at different speeds. Light with different wavelengths reaches the receiving end at different time. This results in spread and blurred pulses. Central wavelength Central wavelength represents the wave band used for optical signal transmission. The following central wavelengths (wave bands) are available for common optical transceiver modules: 850 nm, 1310 nm, and 1550 nm.
Fiber diameter is expressed as core diameter/cladding diameter, in μm. For example, 9/125 μm represents a fiber core diameter of 9 μm and a fiber cladding diameter of 125 μm. As a best practice, use the following fiber diameters for the HPE Comware-based devices: •...
25-Gigabit Ethernet transceiver modules Before you install, configure, or upgrade a device with HPE 25-Gigabit Ethernet transceiver modules, always see the device's release notes for latest information. This compatibility matrix does not replace or supersede the release notes.
Document conventions and icons Conventions This section describes the conventions used in the documentation. Command conventions Convention Description Boldface Bold text represents commands and keywords that you enter literally as shown. Italic Italic text represents arguments that you replace with actual values. Square brackets enclose syntax choices (keywords or arguments) that are optional.
Network topology icons Convention Description Represents a generic network device, such as a router, switch, or firewall. Represents a routing-capable device, such as a router or Layer 3 switch. Represents a generic switch, such as a Layer 2 or Layer 3 switch, or a router that supports Layer 2 forwarding and other Layer 2 features.
Support and other resources Accessing Hewlett Packard Enterprise Support • For live assistance, go to the Contact Hewlett Packard Enterprise Worldwide website: www.hpe.com/assistance • To access documentation and support services, go to the Hewlett Packard Enterprise Support Center website: www.hpe.com/support/hpesc Information to collect •...
For more information and device support details, go to the following website: www.hpe.com/info/insightremotesupport/docs Documentation feedback Hewlett Packard Enterprise is committed to providing documentation that meets your needs. To help us improve the documentation, send any errors, suggestions, or comments to Documentation Feedback (docsfeedback@hpe.com). When submitting your feedback, include the document title,...
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part number, edition, and publication date located on the front cover of the document. For online help content, include the product name, product version, help edition, and publication date located on the legal notices page.
A C L N S About optical transceiver modules,1 Network topology icons,11 Accessing Hewlett Packard Enterprise Support,12 Accessing updates,12 SFP28 active optical cables,5 SFP28 copper cables,4 Conventions,10 SFP28 optical transceiver modules,4 Switching minimum software release requirements,7 List of 25-Gigabit transceiver modules and network...