Cisco Cisco Digital Service Access Node (DSAN) 8210 문제 해결 가이드
Glossary
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D
dB
decibel. One tenth of a bel, the number of decibels denoting the ratio of two amounts of
power being ten times the common logarithm of this ratio.
power being ten times the common logarithm of this ratio.
dBm
decibels relative to 1 milliwatt.
dBmV
decibels relative to 1 millivolt.
dBW
decibels relative to 1 watt.
dc, DC
direct current. An electric current flowing in one direction only and substantially constant in
value.
value.
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 DBDS. The DNCS
provides Scientific-Atlanta's Explorer DHCTs with broadcast services that are displayed on
subscribers' televisions throughout a cable network. The DNCS works with the ATM switch
and the Ethernet router providing data throughout the DBDS. The DNCS uses multi-mode
fiber to transfer data through the ATM switch to the router. Data is sent in ATM cells over
PVCs.
and controls the components, features, and applications supported by the DBDS. The DNCS
provides Scientific-Atlanta's Explorer DHCTs with broadcast services that are displayed on
subscribers' televisions throughout a cable network. The DNCS works with the ATM switch
and the Ethernet router providing data throughout the DBDS. The DNCS uses multi-mode
fiber to transfer data through the ATM switch to the router. Data is sent in ATM cells over
PVCs.
DSAN
digital service access node.
E
EMC
electromagnetic compatibility. A measure of equipment tolerance to external electromagnetic
fields.
fields.
EQ
equalizer.