Operation instructions | CMTS 2-00 | Cable Modem Termination System
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2021-09-03 | Technical improvements, changes in design, printing- and other errors reserved.
1. Product description
1.1.
General
A Cable Modem Termination System (CMTS) allows the professional feeding of IP services into a coaxial cable
network. DOCSIS cable modems then provide Internet access for the users.
The CMTS establishes the connection to the Internet backbone for up to 1,000 modems. The downstream
modulator adds the data coming from the Internet onto one or more carriers and sends the data to the cable
modem. The upstream demodulator receives the data sent from the cable modem to the CMTS. Upstreams and
downstream are merged or separated for the distribution network via a diplexer. The CMTS translates between
the IP and DOCSIS protocols and controls the data traffic and quality of service (QoS).
DOCSIS2.0 or DOCSIS3.0 modems are supplied via downstream and upstream channels. Such cable modems
then provide access points for Internet and data services via Ethernet and WiFi. High-performance WiFi access
points, switches and other network technology can also be connected to such a modem. This ensures optimum
coverage.
