Cisco is the worldwide leader in networking for the Internet. Cisco provides the broadest line of solutions for transporting data, voice and video within buildings, across campuses, or around the world. Cisco solutions ensure that networks both public and private operate with maximum performance, security, and flexibility.The BPX-BME-R-RF is a redundant Broadband Multicast Engine for multicast connections. Use it with SMF-622-2 backcard with port 1 looped to port 2, transmit to receive, and receive to transmit.