superframe

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• Superframe — Super Frame is an older framing standard for T1s. Also called D4 or D3/D4 framing. In the 1970s it replaced the original T1/D1 framing scheme of the 1960s in which the framing bit simply alternated.In order to determine where each channel is… …   Wikipedia

• Extended superframe — In telecommunication, an Extended Super Frame (ESF) is a T1 framing standard, sometimes called D5 framing, invented in the 1980s. It is preferred to its predecessor, Super Frame, because it includes a cyclic redundancy check (CRC) and 4000 bit/s… …   Wikipedia

• extended superframe —    (ESF)    A channel bank framing format used for DS1 (T1) transmission. A superframe consists of 24 frames and uses a 6 bit framing pattern …   IT glossary of terms, acronyms and abbreviations

• 802.15.4 — Le 802.15.4 est un protocole de communication défini par l IEEE. Il est destiné aux réseaux sans fil de la famille des LR WPAN (Low Rate Wireless Personal Area Network) du fait de leur faible consommation, de leur faible portée et du faible débit …   Wikipédia en Français

• IEEE 802.15.4 — 802.15.4 Le 802.15.4 est un protocole de communication défini par l IEEE. Il est destiné aux réseau sans fil de la famille des LR WPAN (Low Rate Wireless Personal Area Network) du fait de leur faible consommation, de leur faible portée et du… …   Wikipédia en Français

• 802.15.4 — ZigBee und IEEE 802.15.4 Der Standard IEEE 802.15.4 beschreibt ein Übertragungsprotokoll für Wireless Personal Area Networks (WPAN). Er definiert die untersten beiden Schichten des OSI Modells, den Bitübertragungs und den MAC Layer. Höhere… …   Deutsch Wikipedia

• IEEE 802.15.4 — ZigBee und IEEE 802.15.4 Der Standard IEEE 802.15.4 beschreibt ein Übertragungsprotokoll für Wireless Personal Area Networks (WPAN). Er definiert die untersten beiden Schichten des OSI Modells, den Bitübertragungs und den MAC Layer. Höhere… …   Deutsch Wikipedia

• IEEE 802.15.4-2006 — is a standard which specifies the physical layer and medium access control for low rate wireless personal area networks (LR WPAN s). It is maintained by the IEEE 802.15 working group.It is the basis for the ZigBee, WirelessHART, and MiWi… …   Wikipedia

• IEEE 802.22 — is a new working group of IEEE 802 LAN/MAN standards committee which aims at constructing Wireless Regional Area Network (WRAN) utilizing white spaces (channels that are not already used) in the allocated TV frequency spectrum. The use of the… …   Wikipedia

• T-carrier — In telecommunications, T carrier, sometimes abbreviated as T CXR , is the generic designator for any of several digitally multiplexed telecommunications carrier systems originally developed by Bell Labs and used in North America, Japan, and Korea …   Wikipedia

• TDMoIP — In computer networking and telecommunications, TDM over IP (TDMoIP) is the emulation of time division multiplexing (TDM) over a packet switched network (PSN). By TDM we mean a T1, E1, T3, or E3 signal, while the PSN is based either on IP or MPLS… …   Wikipedia