F-tone Networks做为全球SDI Video SFP光模块主要供应商。从2016年8月开始，其SDI Video SFP光模块从PIN脚定义来严格分类为4种：
- 收发一体SFP (一定是MSA版本)
- 双发双收SFP (一定是NON-MSA版本)
- 单发单收SFP (MSA版本，前缀为”FTCS-”)
- 单发单收SFP (NON-MSA版本,前缀为”FTNS-”)
注：
单发单收的则分为两个版本（MSA和NON-MSA版本）。
收发一体SFP (MSA版本)和单发单收SFP (MSA版本) PIN脚兼容。
单发单收SFP (NON-MSA版本)和双发双收SFP (NON-MSA版本) PIN脚兼容。
VIDEO SFP PIN 定义图
1,收发一体VIDEO SFP (一定是MSA版本) PIN脚 定义图：
2,双发VIDEO SFP (一定是NON-MSA版本) PIN脚 定义图：
3,双收VIDEO SFP (一定是NON-MSA版本) PIN脚 定义图：
4,单发VIDEO SFP (MSA版本，前缀为”FTCS-”)PIN脚 定义图：
5,单收VIDEO SFP (MSA版本，前缀为”FTCS-”)PIN脚 定义图：
6,单发SFP (NON-MSA版本,前缀为”FTNS-”)PIN脚 定义图：
7,单收SFP (NON-MSA版本,前缀为”FTNS-”)PIN脚 定义图：
Important Notice
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.
