ADC Cuda 12000 Installationsanleitung PDF herunterladen (Seite 151)

Cuda 12000 IP Access Switch Installation Guide

151

Cable Modem

Termination

System - Network

Side Interface

(CMTS-NSI)

The interface, defined in [DOCSIS3], between a CMTS and the equipment on

its network side.

Cable Modem to

CPE Interface

(CMCI)

The interface, defined in [DOCSIS4], between a CM and CPE.

Carrier Hum

Modulation

The peak-to-peak magnitude of the amplitude distortion relative to the RF

carrier signal level due to the fundamental and low-order harmonics of the

power-supply frequency.

Carrier-to-Noise

Ratio (C/N or CNR)

The voltage difference between the digitally-modulated RF carrier and the

continuous random noise. CNR is measured in decibels (dB).

CM See Cable Modem.

CMCI See Cable Modem to CPE Interface.

CMTS See Cable Modem Termination System.

C/N or CNR See Carrier-to-Noise Ratio.

CNAME A record that contains an alias or nickname for the official domain name

(also known as the canonical name).

Cross-Modulation A form of television signal distortion where modulation from one or more

television channels is imposed on another channel or channels.

Customer Premises

Equipment (CPE)

Equipment at the end user’s premises. This equipment may be provided by

the end user or the service provider.

Data Link Layer Layer 2 in the Open System Interconnection (OSI) architecture; the layer that

provides services to transfer data over the transmission link between open

systems.

DHCP See Dynamic Host Configuration Protocol.

Distribution Hub A location in a cable television network which performs the functions of a

head-end for customers in its immediate area, and which receives some or all

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ADC Cuda 12000 Installationsanleitung Seite 151