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The physical network topology can be directly represented in a network diagram, as it is simply the physical graph represented by the diagrams, with network nodes as vertices and connections as undirected or direct edges (depending on the type of connection). [3] The logical network topology can be inferred from the network diagram if details ...
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It is also called data communication(s) equipment [2] [3] [4] and data carrier equipment. [citation needed] Usually, the DTE device is the terminal (or computer), and the DCE is a modem. In a data station, the DCE performs functions such as signal conversion, coding, and line clocking and may be a part of the DTE or intermediate equipment. [3]
Modem class 3G 3G+/4G 4G LTE LTE.5G; Peak data rate (Mbit/s) 3.6 14.4 28.8 42 84 100 150 Modems MDM6270 MDM6200 MDM6600 MDM8200A MDM8215 MDM8220 MDM8225 MDM9200 MDM9215 MDM9600 MDM9615 MDM9225 MDM9625
System Architecture Evolution (SAE) is the core network architecture of mobile communications protocol group 3GPP's LTE wireless communication standard.. SAE is the evolution of the GPRS Core Network, but with a simplified architecture; an all-IP Network (AIPN); support for higher throughput and lower latency radio access networks (RANs); and support for, and mobility between, multiple ...
A network switch is a multiport network bridge that uses MAC addresses to forward data at the data link layer (layer 2) of the OSI model. Some switches can also forward data at the network layer (layer 3) by additionally incorporating routing functionality. Such switches are commonly known as layer-3 switches or multilayer switches. [2]
The protocols in use today in this layer for the Internet all originated in the development of TCP/IP. In the OSI model the transport layer is often referred to as Layer 4, or L4, [2] while numbered layers are not used in TCP/IP. The best-known transport protocol of the Internet protocol suite is the Transmission Control Protocol (TCP).
A CSD call functions in a very similar way to a normal voice call in a GSM network. A single dedicated radio time slot is allocated between the phone and the base station . A dedicated "sub-time slot" (16 kbit/s) is allocated from the base station to the transcoder , and finally, another time slot (64 kbit/s) is allocated from the transcoder to ...