Extreme Networks ExtremeSwitching Virtual Services Platform 4850GTS Series Installation Manual page 13

Important:
The attainable cable length can vary depending on the quality of the fiber-optic cable used.
Small Form Factor Pluggable plus (SFP+) transceivers
SFP+ transceivers are hot-swappable input and output enhancement components that allow 10
gigabit connections. All Extreme Networks SFP+ transceivers use Lucent connectors (LC) to
provide precision keying and low interface losses.
Compatible transceivers
Important:
It is recommended to use Extreme Networks-branded SFP and SFP+ transceivers as they have
been through extensive qualification and testing. Extreme Networks will not be responsible for
issues related to non-Extreme Networks branded transceivers.
• The VSP 4850GTS operates in forgiving mode for SFP, and for coarse wave digital
multiplexing (CWDM) and dense wave digital multiplexing (DWDM) SFP+ transceivers.
This means that the switch will bring up the port operationally when using non-Extreme
Networks SFP, or SFP+ transceivers. Extreme Networks does not provide support for
operational issues related to these transceivers, but they will operate and the port link will
come up. The switch logs the device as an unsupported or unknown device.
For more information about SFP and SFP+ transceivers, including technical specifications and
installation instructions, see Installing Transceivers and Optical Components on VSP Operating
System Software.
Optical power considerations
When you connect the device to collocated equipment, ensure that enough optical attenuation exists
to avoid overloading the receivers of each device. You must consider the minimum attenuation
requirement based on the specifications of third-party equipment. For more information about
minimum insertion losses for optical products, see Installing Transceivers and Optical Components
on VSP Operating System Software.
August 2018 Installing Virtual Services Platform 4850GTS Series
Supported optical devices
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