百度试题 题目In a cable HFC plant, what is a modulator?() A. Set top box B. Diplex filter C. Local head end D. Fiber node 相关知识点: 试题来源: 解析 A.Set top box 反馈 收藏
What Does Hybrid Fiber-Coaxial Cable Mean? A hybrid fiber-coaxial cable (HFC cable) is a communication medium that combines fiber optic and coaxial cable-based transmission modes into a unified path. It delivers voice, Internet, cable TV and other digital interactive solutions and services to ...
What Does Cable Modem Mean? A cable modem is a device that modulates and demodulates an analog carrier signal to encode and decode digital information that is transmitted, providing bi-directional data communication via radio frequency channels using hybrid fibre-coaxial cable (HFC cable) and radio...
Evolution: With the onset ofDOCSIS 4.0, HFC continues to evolve. By utilizing DAAs (distributed access architectures), HFC networks are becoming smarter at the edge with technology such as Remote PHY and Remote MAC. These devices are installed in the remote node where optical transmissions are...
Xfinity : Like Verizon's Fios, Comcast's Xfinity also provides internet, and TV services, however, Xfinity uses hybrid fiber-coaxial cable (HFC) for its internet connection. This doesn't necessarily mean its internet speeds are slower—their advertised standalone internet package speeds can go up...
As IPTV integrates the services of telecom, TV and Internet, thetelecommunications IP network and the TV Hybrid Fiber/Coaxial Cable (HFC) networkare able to transfer IPTV services. Nevertheless, none of the two networks is good enough.
Rachel Hisle is a home services editor at U.S. News & World Report where she specializes in cell phone plans, hearing aids, and medical alert systems coverage, helping readers make important communications-related purchase decisions. She has been at U.S. News since 2021 and has over five ...
hfc is a shared transmission and the rate really is dependent on the users on the line. on the other end dsl which is a dedicated transmission has a 6、range of 768 kbps to 1.5 mbps downstream and 128kbps to 768 kbps upstream.r11what advantage does a circuit-switched network have over...
. Including xDSL (e.g. ADSL2+, VDSL2), FTTx (e.g. GPON, MetroE), HFC (via DOCSIS Cable Modem), or wireless (e.g. 4G, WiMax) . It normally includes support for: . Switched Digital Broadcast channels (SDB) . Digital Video Recorder services (PVR/nPVR) . ...
How does two bytes of data help us and where do correctable and uncorrectable codewords come from? First, lets understand how the 18 byte codeword was initially formed in the DOCSIS cable modem so that we better understand how the two error correction bytes will help us when we need them....