FCD-E1/T1 in the Video Environment (Part of RAD’s Ethernet Direct Solution)

What is the FCD-E1/T1?
The FCD-E1/T1 is a CSU/DSU for accessing E1/T1 leased line services at the customer premises.

What makes the FCD-E1/T1 important in the video environment?
The need for MPEG over IP solutions is growing due to the increased use of MPEG video compression techniques and the transport of video-type content via TCP/IP. The FCD-E1/T1 provides an MPEG over IP solution for delivering video streams over E1/T1 networks. Its optional Ethernet bridging interface, based on RAD's unique ChipBridge, provides wire-speed forwarding of Ethernet frames to an E1/T1 link without introducing any delay variation (jitter). This feature is of prime importance in MPEG over IP.

How is the FCD-E1/T1 used in the video environment?
The FCD-E1/T1 is used to bridge between two Ethernet LANs over an E1/T1 leased line. It can connect each Ethernet LAN directly to the E1/T1 link at speeds of up to 2.048 Mbps. The diagram below shows a variation of this application where the RAD DXC multiservice access node with an external TinyBridge connects the central LAN to several remote sites over E1/T1 links. The DXC receives input from the Ethernet LAN via the TinyBridge, duplicates the traffic stream and broadcasts to two or more remote sites.