Installation Guide

Glossary
4035812 Rev B 27
dc, DC
direct current. An electric current flowing in one direction only and substantially constant in
value.
DES
data encryption standard.
DHCP
dynamic host configuration protocol. TCP/IP protocol that manages a pool of IP addresses.
DNCS
Digital Network Control System. A computer workstation that defines, organizes, monitors,
and controls the components, features, and applications supported by the digital broadband
delivery system.
DOCSIS
data over cable service interface specification.
DSAN
digital service access node.
DVB
A standard developed by the Digital Video Broadcasting (DVB) Group, which is a European
organization that has authored many specifications for satellite and cable broadcasting of
digital signals. Part of the DVB work has been focused specifically on conditional access.
E
EAS
Emergency Alert System.
eCM
Embedded cable modem.
EIA
Electronic Industries Association. A United States association that provides standards for use
between manufacturers and purchasers of electronic products.
EQ
equalizer.