Glossary ->Q

Q.921/931 ITU-TS (formerly CCITT) Q Series Recommendations describing Lap- D, the Layer Two protocol for an ISDN D-channel.
Qbit (Qualifier bit) In X.25 networks, bit 8 in an octet of packet header. It is used to indicate if a packet contains control information.
QLLC (Qualified Logical Link Control) Routines to provide Synchronous Data Link Control.
Quartet Signaling Part of the 100BaseVG-AnyLAN proposed standard involving transmission over all four wire pairs simultaneously in voice-grade UTP cable, expanding its capacity to 100Mbit/s.

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	Q.921/931 ITU-TS (formerly CCITT) Q Series Recommendations describing Lap- D, the Layer Two protocol for an ISDN D-channel. Qbit (Qualifier bit) In X.25 networks, bit 8 in an octet of packet header. It is used to indicate if a packet contains control information. QLLC (Qualified Logical Link Control) Routines to provide Synchronous Data Link Control. Quartet Signaling Part of the 100BaseVG-AnyLAN proposed standard involving transmission over all four wire pairs simultaneously in voice-grade UTP cable, expanding its capacity to 100Mbit/s.