ANSI/SCTE 25-1 2017 (R2022)

Hybrid Fiber Coax Outside Plant Status Monitoring – Physical (PHY) Layer Specification v1

This specification describes the PHY layer requirements that must be implemented by all Type 2 and Type 3 compliant OSP HMS transponders on the HFC plant and the controlling equipment in the headend. Any exceptions to compliance with this specification will be specifically noted in this document as necessary.