Recommendation ITU-T J.483 defines the Architecture and Functional Specifications of a radio frequency (RF)/Internet protocol (I/IP) video switching system. This Recommendation document is Part 2 of a multi-part deliverable covering both the Requirements [ITU-T J.482] as well as the Architecture and Functional Specifications for RF/IP switching system, as identified below: Part 1: Requirements [ITU-T J.482]; Part 2: Architecture and functional specifications; Cable television operators provide subscribers with a variety of video services composed of RF-signal-based video (RF-video) and IP-signal-based video (IP-video) over cable networks. While the bandwidth is limited, cable operators are facing subscriber needs to watch higher quality video such as 4K in either RF or IP format. Under these circumstances, the purpose of RF/IP switching system is to create an environment where almost all the subscribers can watch 4K videos if they so wish.