MSAs indicate the parameters of system components and their indicative values, such as mechanical dimensions, electrical and optical interfaces, and electromagnetic values. Device manufacturers are attacking MMAs to develop their systems. This ensures interoperability and interchangeability between interface modules. Products that comply with multi-source agreements include: optical transceurs such as SFP, SFP, XENPAK, QSFP, XFP, CFP, etc.; fibre optic cables and other network devices. MSA is a popular sector format that is developed and supported jointly by many network component suppliers. MSAs generally indicate the parameters of optical transceivers and their reference values, such as electrical and optical interfaces (para. B example. B SX, LX, EX, ZX, etc.), mechanical dimensions, electromagnetic values and other data. The host system can access this data via the I2C interface, as well as the status of optional DDM functions. Some multi-source fiberglass agreements are shown in the table below: Because life is not always so simple. Over the years, device manufacturers have tried to lock up the customer by making the transceivers proprietary for commercial reasons.
This result is usually achieved by using specific codes in defined or undefined memory positions in the MSA. This means that after inserting the compatible, the user will identify the „unsupported transceiver“ or display a similar message. However, most of the compatible transceivers providers in place have understood this and are able to write the corresponding codes for the appropriate supplier for the transceivers. In this regard, it is obviously important to choose a supplier that has the means to test the transceiver in the right network device in order to ensure interoperability. Here is a list of authorized MMAs for transceivers. Some of these agreements have become obsolete, such as the . B GBIC, which has been replaced by the SFP. Device manufacturers rely on MSA to develop their systems to ensure interoperability and interchangeability between interface modules, i.e.
each supplier can manufacture the transceiver modules with the same functions. For this reason, there are many module providers whose customers can choose freely. As we all know, freedom of choice is the basis for effective market functioning. To gain more market share, suppliers can act in the most efficient way possible, which can reduce costs and offer the greatest options to customers. Because there are so many excellent suppliers of third-party optical trans-receiver modules on the market, network operators are not required to purchase optical transgenerators directly from system suppliers (original brand), which will also save huge costs. Finally, there is no doubt that all of this will contribute to simultaneously supporting and promoting the creation and compliance of standards. Over the past decade, the MSA process has helped accelerate the acceptance of modules such as the FPS and the PSC, which allow optical transceurs to benefit from a wider variety of spectrum, such as 40G and 100G. A multi-source agreement, commonly known as MSA, is an agreement between several manufacturers to manufacture products with the same basic functionality and ease of use between different suppliers.