In this CompTIA Network+ training video, I’ll go over what Channel Service Units (CSUs) and Data Service Units (DSUs) are, what they do, and why they are used. A CSU/DSU is a hardware device that converts data frames used on a LAN into data frames used on a WAN. Typically, a CSU/DSU will be used to connect a T1 or T3 line (or otherwise) to a local network.
Ed Liberman (MCP, MCSA, MCSE, MCDST, MCT, MCTS, MCITP, A+, Network+, Server+, CWTS, CWNA, CWNT) has worked in technology for 20 years. He has been certified and instructing IT since 1998. He has helped thousands of people to get started or advance their careers in the IT industry. When he is not in the classroom, he is out helping corporations with their network infrastructure as an independent consultant. Ed will get you ready to pass your exams while you develop the skills needed to succeed in the "real world". His teaching style encourages you to have fun while you learn. Ed also volunteers his time in his local community as a math tutor for struggling grade school children.
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