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Glossary
GL-10
3160-A2-GB21-80
March 1999
An ITU-T standard for local and remote diagnostic loopback tests.
An ITU-T standard for a data channel loopback (DCLB).
An ITU-T standard for a data terminal loopback (DTLB).
Volts alternating current.
Volts direct current.
Voice Frequency. The part of the audio frequency range used to transmit voice sound
(usually 300 Hz to 3400 Hz). This band is used by the modem for its modulated signal.
Wide Area Network. A network that spans a large geographic area.
An SNMP trap that indicates that the device has reinitialized itself.
External Transmit Clock. V.24 circuit 113.
An outgoing signal transmitted when a DS1 terminal has determined that it has lost the
incoming signal.
V.54
V.54 Loop 2
V.54 Loop 3
Vac
Vdc
VF
WA N
warmStart trap
XTXC
Yellow Alarm