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The SFP 50G pluggable transceiver that will get you simple migration from 25G


Written by:
Craig Pasek, Product Supervisor
Cisco Optics

New 50G transceiver product household

As community operators look to improve their medium-speed Ethernet hyperlinks, they will make the most of a Cisco’s new optical transceiver product household “SFP-50G”. These modules are 50G transceivers in a kind issue referred to as SFP56 (see Determine 1). They ship double the information charge of SFP-25G (SFP28 kind issue) and in the identical primary SFP kind issue.

In contrast to QSFP-40G and QSFP-100G transceivers, which each use 4 electrical lanes at decrease speeds (4 x 10G and 4 x 25G, respectively), SFP-50G contains a single electrical lane. Consequently, it will probably interface immediately with the newest era swap ASICs that incorporate 50G serializers/deserializers (SerDes), eliminating the necessity for added gearboxes with PAM4 encoders/decoders. Thus, SFP-50G supplies a lift in efficiency of 50G with a design that minimizes price, area and energy consumption.

Determine 1: SFP-50G Transceiver

From a historic perspective, let’s have a look at the evolution of the QSFP-100G and SFP-25G markets, each primarily based upon the 25G SerDes. The primary gadgets to succeed in the market have been the QSFP-100G optical modules, primarily based on 4 electrical lanes of 25G SerDes within the QSFP28 kind issue. This allowed transceiver module suppliers to supply 100G functionality. SFP-25G modules weren’t extensively obtainable till years later. An identical dynamic is in play now for SFP-50G. Due to the broad concentrate on QSFP56-DD 400G modules, the marketplace for 50G SerDes and ASICs is now mature, leading to excessive reliability and low price. This case allows the event and business progress of SFP-50G modules.

The SFP56 worth proposition

In comparison with the workhorse SFP-25G, the SFP-50G delivers double the information charge in the identical kind issue. Traditionally, that pattern has led to dramatic decreases in price per bit. Change distributors are already creating switches with SFP ports that may assist 1G, 10G, 25G, and 50G charges. These merchandise give community operators the liberty to function every hyperlink on the information charge that most closely fits demand at any given time simply by choosing the suitable transceiver sort: copper, SMF or MMF and the specified velocity in SFP, SFP-10G, SFP-25G and now SFP-50G.

To assist this pattern, Cisco’s SFP-50G product household accommodates a complete portfolio of transceivers starting from copper-based options of some meters to optical modules with reaches of as much as 15 km and even larger sooner or later. These transceivers assist 50G and 25G twin charge, which permits them to attach on the new the 50G charge whereas additionally connecting with 25G transceivers.  This provides community operators an economical migration path from 25G to 50G by enabling partial community upgrades.

Determine 2: Cisco’s SFP-50G transceivers assist dual-rates (25/50G)

Community operators want versatile, dependable improve paths to serve quite a lot of shopper wants. SFP-50G offers them the choice of a major capability enhance in a well-known kind issue that helps cut back price per bit. Cisco’s SFP-50G transceiver product line, a broad 50G portfolio, lets community operators select the optimum answer for quite a lot of community segments.

Learn the white paper to learn the way SFP-50G options can improve your community:

 

Sources

Datasheet for SFP-50G

Compatibility matrix for SFP-50G

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