ANSI/SCTE 199 2019

Interface Specifications for an RF-Modulated Small Form Factor Pluggable Optical Receiver Module (SFP-RF-USRx)

The integration of optical interfaces into headend equipment offers cost and power savings to MSOs. However, implementing optical interfaces in these devices presents significant technical challenges, since the lack of standardization may result in too many combinations of interfaces to support effectively in a headend device.

Because of this challenge, it is proposed to create a standard that specifies the interfaces between an upstream laser receiver module and its host. The module is based on [XFP MSA], but is in an SFP form factor and will receive RF-modulated optical signals. This optical receiver module could be deployed in headend equipment, such as the Converged Cable Access Platform (CCAP) or HFC optoelectronics products, providing a standardized, interoperable solution. The optical receiver module will function as an upstream receiver for the output of return optical transmitters inside fiber optic nodes.

This standard focuses on the communication, electrical, and mechanical interfaces for the optical receiver module. Requirements held within this standard apply both to the receiver module and its host.