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Glossary
V.35
An ITU-T standard for a high-speed, 34-position, DCE/DTE interface.
An ITU-T standard for local and remote diagnostic loopback tests.
V.54
An ITU-T standard for a data channel loopback (DCLB).
V.54 Loop 2
V.54 Loop 3
An ITU-T standard for a data terminal loopback (DTLB).
Vac
Volts alternating current.
Vdc
Volts direct current.
Voice Frequency. The part of the audio frequency range used to transmit voice sound
VF
(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.
WAN
An SNMP trap that indicates that the device has reinitialized itself.
warmStart trap
External Transmit Clock. V.24 circuit 113.
XTXC
Yellow Alarm
An outgoing signal transmitted when a DS1 terminal has determined that it has lost the
incoming signal.
GL-10
February 2001
3160-A2-GB21-90
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