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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’ll benefit from a Cisco’s new optical transceiver product household “SFP-50G”. These modules are 50G transceivers in a type issue known as SFP56 (see Determine 1). They ship double the information fee of SFP-25G (SFP28 type issue) and in the identical primary SFP type issue.
Not like 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 may possibly interface immediately with the most recent technology change ASICs that incorporate 50G serializers/deserializers (SerDes), eliminating the necessity for extra gearboxes with PAM4 encoders/decoders. Thus, SFP-50G gives a lift in efficiency of 50G with a design that minimizes value, house 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 units to succeed in the market had been the QSFP-100G optical modules, primarily based on 4 electrical lanes of 25G SerDes within the QSFP28 type issue. This allowed transceiver module suppliers to supply 100G functionality. SFP-25G modules weren’t extensively accessible till years later. The same 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 value. This case permits the event and business development of SFP-50G modules.
The SFP56 worth proposition
In comparison with the workhorse SFP-25G, the SFP-50G delivers double the information fee in the identical type issue. Traditionally, that development has led to dramatic decreases in value per bit. Change distributors are already creating switches with SFP ports that may help 1G, 10G, 25G, and 50G charges. These merchandise give community operators the liberty to function every hyperlink on the knowledge fee that most closely fits demand at any given time simply by deciding on the suitable transceiver sort: copper, SMF or MMF and the specified pace in SFP, SFP-10G, SFP-25G and now SFP-50G.
To help this development, Cisco’s SFP-50G product household comprises 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 help 50G and 25G twin fee, which permits them to attach on the new the 50G fee 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 help dual-rates (25/50G)
Community operators want versatile, dependable improve paths to serve a wide range of consumer wants. SFP-50G provides them the choice of a major capability enhance in a well-known type issue that helps scale back value per bit. Cisco’s SFP-50G transceiver product line, a broad 50G portfolio, lets community operators select the optimum answer for a wide range 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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