Tag Archives: MSA

How Do Optical Transceiver Vendors Differentiate Their Transceiver Design?

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In order to get a bigger share of the market. Optical transceiver vendors are challenged in how to differentiate their optical transceiver design and give the products conform to common form factors. To understand the importance of transceiver differentiation, it is worth reviewing the purpose of multi-source agreement (MSA) transceiver form factors.

Common form factors arose so that optical equipment makers could avoid developing their own interfaces or being locked into a supplier’s proprietary design. Judged in those terms, MSAs have been a roaring success. Equipment makers can now buy optical intoptical transceiver designerfaces from several sources, all battling for the design win. MSAs have also triggered a near-decade of innovation, resulting in form factors from the 300-pin large form factor transponder MSA to the pluggable SFP+, less than a 60th its size.

But MSAs, with their dictated size and electrical interfaces, are earmarked for specific sectors. As such the protocols, line rates, and distances they support are largely predefined. Little scope, then, for differentiation. Yet vendors have developed ways to stand out. One approach is to be a founding member of an MSA. This gives the inner circle of vendors a time-to-market advantage in securing customers for emerging standards. The CFP MSA for 40- and 100-Gigabit Ethernet is one such example.

Some designs required specialist optical components that only a few vendors have, such as high-speed VCSELs used for the latest Fibre Channel interfaces. In turn, many vendors don’t have the resources—design teams and the deep pockets—needed to develop advanced technologies, such as those for 40- and 100-Gbps transponders, whether it is integrated optical devices or integrated circuits.

Being the first to integrate existing designs into smaller form factors is another way to differentiate oneself. An example is JDSU, which has integrated a tunable laser into the pluggable XFP MSA. Fiberstore also then launched tunable XFP which features with tunable and multi-protocol functions in order to further expand the product lineup of the 10G optical transceiver modules.

Optical transceiver vendors are also differentiating their products through marketing approaches. New-entrant Far Eastern vendors are selling optical transceivers directly to service providers and data center operators, bypassing equipment makers. They are also looking to differentiate on price, cutting costs where they can (including R&D) and focusing on bread-and-butter designs. They are quite happy to leave the leading vendors to make the heavy investments and battle each other in the emerging 40- and 100-Gbps markets.

Some people think differentiation doesn’t matter so much for optical transceivers since even if a vendor gets a lead, others inevitable will follow. And anyway, the cost of transporting traffic is still too high evenoptical transceiver market with the fierce competition instigated by MSAs. In turn, optical transceivers are now a permanent industry fixture and they can’t be conjured to disappear.

For optical transceiver vendors, however, the result is a market that is brutal. So can optical transceiver vendors differentiate their products? Of course they can. FS.COM (Fiberstore), a company devoting on the research & development, and offering fiber connectivity network solutions for carriers, ISPs, content providers and networks, is the global market innovator and application technology pioneer in the field of optical network devices and interconnection. In the future, they seem to change this market.

Knowledge of Multi-source Agreement

Fiber Optical TransceiverWe usually see some products that are compliant with MSA when refers to fiber optic transceivers, but what does MSA mean? It seems like a standard that is used to define the optical transceiver. In fact, MSAs are not official standards organizations. Instead, they are agreements that equipment vendors assume when developing form factors for communications interfaces. These form factors, usually called the transceiver modules, are typically deployed in active electronics such as switches, servers and multiplexers. In this text, some knowledge of the MSA will be introduced.

What is Multi-source Agreement?

MSA stands for multi-source agreement, which is an agreement between multiple manufacturers to make products which are compatible across vendors, acting as de facto standards, establishing a competitive market for interoperable products. Products that adhere to MSAs include optical transceivers (SFP, SFP+, XENPAK, QSFP, XFP, etc), fiber optic cables, and other networking devices. MSAs strictly define the operating characteristics of these optical transceivers so that system vendors may implement ports in their devices that allow MSA compliant transceivers produced by name brand, as well a third party vendors, to function properly. That is, transceivers may be purchased from any of the multiple sources in the open market, like Fiberstore. MSAs are also important in the cabling industry as the density, line speed, power consumption and typical costs of a MSA can strongly impact its success in the marketplace. This, in turn, can drive the choice for both connector and media type.

Why is Multi-source Agreement  so Important?

Equipment vendors all rely on MSAs when designing their systems, ensuring interoperability and interchangeability between interface modules, that is every supplier can produce the transceiver modules with the same functions. For this reason, there are many module suppliers from which customers can choose freely. As we all know, freedom of choice is the foundation of the efficient operation of markets. In order to gain a bigger share of the market, suppliers may act as efficiently as possible, which may drive down costs and offer the widest options to customers. Besides, since there are so many excellent 3rd party optical transceiver module suppliers in the market that network operators don’t need to purchase optical transceivers directly from system (original brand) vendors, which will also save huge costs. Finally, there is no doubt that all these will help support and encourage creation and adherence to standards at the same time. Over the past decade, the MSA process has helped accelerate the acceptance of modules such as SFP+ and CFP, which allow optical transceivers to support greater bandwidth such as 40G and 100G.

Approved Fiber Optica Transceiver Multi-source Agreements

MSA is a popular industry format jointly developed and supported by many network component vendors, most common optical transceivers are specified by it at present. MSAs usually specify parameters for optical transceivers and their guideline values, such as the electrical and optical interfaces (e.g. SX, LX, EX, ZX, etc), mechanical dimensions, electro-magnetic values and other data. This data is accessible by the host system over the I2C interface, as is the status of the optional DDM functions. Some approved fiber optica transceiver multi-source agreements are listed in the table below:

Name Year Brief Description Keywords/Applications
GBIC 2000 GigaBit Interface Converter Designed for Gigabit Ethernet, SDH/SONET (2.5 Gb/s) and Fibre Channel (4Gb/s). Superseded by SFP
SFP 2001 Small Form-factor Pluggable Designed for Gigabit Ethernet, SDH/SONET (2.5 Gb/s) and Fibre Channel (4Gb/s)
XENPAK 2001 Fiber optic transceiver for 10Gb Ethernet Superseded by X2 and SFP+
X2 2005 Fiber optic transceiver for 10Gb Ethernet Superseded by SFP+
XFP 2005 Fiber optic transceiver for 10Gb Ethernet Designed for 10Gb/s. Supports 8Gb/s Fibre Channel, 10 Gb/s Ethernet and Optical Transport Network
SFP+ 2013 Fiber optic transceiver for 10Gb Ethernet Designed for 10Gb/s. Supports 8Gb/s Fibre Channel, 10 Gb/s Ethernet and Optical Transport Network standard OTU2
QSFP/QSFP+ 2013 Quad Small Form-factor Pluggable 40G Supports Ethernet, Fibre Channel, InfiniBand and SONET/SDH standards up to 40GB/s and 100Gb/s
CFP 2013 C Form Factor Pluggable (100G) Optical transceiver form factors supporting 40Gb/s and 100Gb/s. CFP, CFP2 and CFP4
CXP In Progress C Form Factor Pluggable Supports Infiniband and Ethernet to 100G. CXP and CXP2