- Semiconductor BusinessHOME
- Products and Services of Macnica,Inc.
-
technical information
-
Events and Seminars
- Handling Manufacturer
- Support
- Inquiry
- Click here to purchase products
- Semiconductor business e-mail magazine registration
Narrow down by specifying conditions
現在2147件がヒットしています。check
Optical transceiver modules are one of the important components that make up optical transmission networks. There have been many changes to meet the demands for higher speeds and smaller size, so there are many different types. There are also many types of SFP-type optical transceivers, including SFP (1G), SFP+ (10G), SFP28 (25G), SFP56 (50G), and SFP112 (100G).
In this article, we will take a deeper look at the standards for SFP type optical transceivers.
SFP Standards List
Table 1
| SFP+, SFP28, SFP56 | SFP112 | SFPs | |
| 1. Integrated Solution The big picture |
SFF-8402 | SFF-8402 | INF-8074[*2] |
|
2．Management Interface control interface |
SFF-8472 | CMIS | |
|
3．Low Speed Electrical Interface Low Speed Electrical Signals |
SFF-8419 [*1] | SFF-8419 [*1] | |
|
4．High Speed Electrical Interface High-speed electrical signals |
SFF-8418 [*1] | SFF-8418 [*1] | |
| 5. Card Edge Connector Electrical Connector |
SFF-8071 | SFF-TA-1031 | |
|
6．Module and Cage Modules and Cages |
SFF-8432 | ||
|
7. Ganged cage footprints and bezel openings |
SFF-8433 | SFF-8433 |
*1 SFF-8431 is a branch of
*2 Not all-inclusive
SFP standard explanation
Integrated Solution (overall picture)
The overall picture of the standard is summarized in Table 1, which refers to Figure 4-1 and Figure 4-2 of SFF-8402.
Management Interface
It defines how to control the optical transceiver and what the memory map inside the optical transceiver is.
SFP112 is listed in SFF-8402 as being compliant with a new standard called CMIS.
Low Speed Electrical Interface
This is a standard for low-speed signals, such as serial signals (I2C) that are controlled by software and interrupt signals that are controlled by hardware.
High Speed Electrical Interface
This is the standard for the main high-speed signals such as 10G and 25G.
Card Edge Connector (Electrical Connector)
This is a standard for card edge connectors, which are the physical connection interface with the host side.
Module and Cage
This is a mechanical standard for optical transceiver modules and the host cage into which the modules are inserted.
Ganged cage footprints and bezel openings
This is the standard for the host cage footprint (board footprint).
What is SFF?
As shown in Table 1, SFP-type optical transceivers are defined by multiple standards. The names of the standards (organizations) are roughly as follows:
-There is an organization called SNIA that manages the internet.
-SNIA has the SFF Technology Affiliate, which contains standards for optical transceivers.
https://www.snia.org/technology-communities/sff/specifications
- It is often said that optical transceivers comply with the MSA standard, but MSA stands for Multi Source Agreement, and is a standard agreed upon among members.
・The SFF standard is one of the MSAs; there are many other MSAs.
(Note) Please check the product datasheet to see which standard your SFP-type optical transceiver actually complies with.
Explained the SFP type optical transceiver standard
Macnica offers the Finisar Transceiver series from Coherent, a leading company in optical transceiver modules. Our experienced sales staff and technical staff dedicated to optical transceiver module products provide comprehensive support from customer consideration to installation and operation. If you are interested, please contact us using the form below.
