TM Bay Networks family of access products, including the Versalar 5000 Access Switch, Versalar Remote Access Concentrators (RACs), Versalar Cable Modem Termination System (CMTS), and Versalar Cable Modems (CMs). The Versalar 5000 Access Switch and RACs have x2 and K56flex configuration capabilities. Bay Networks Versalar cable modem products have DOCSIS-based interoperability for broadband services. See also CM, CMTS, DOCSIS, K56flex, RAC TM, x2.