SHDSL

SHDSL

L ‘ SHDSL stands for Symmetric High-bit rate Digital Subscriber Line ‘s SHDSL allows you to have through a traditional telephone cable connecting high-speed data of the same size in both directions
The technology SHDSL becomes a standard of the ITU (International Telecommunications Union), known as G 991.2 in February 2001, for this reason it is also known as G.SHDSL .
With the ‘ SHDSL , Symmetric High-Bit Rate DSL, there is an evolution in data transmission multi-rate inherent in the ‘HDSL2. L ‘SHDL in fact provides a symmetric high-speed transmission of up to 2 Mbps using the existing copper cables.
L ‘ SHDL also known as G.SHDSL allows the transmission of data, voice and video over distances large not reached so far by previous versions of symmetric DSL technology. L ‘ SHDSL has the following advantages compared to previous DSL technologies:
– high-speed characteristics,
– use of a single pair of copper
– no need for a special cable
– reducing costs
L ‘ SHDSL provides for the configuration of a Virtual Circuit (Virtual Channel – VC virtual circuit between the customer premises and the Backbone) ATM for the transport of data traffic. The VC will be statically configured on the ATM network, during service activation.
L ‘SHDSL provides a maximum bandwidth and a guaranteed minimum bandwidth, the parameters to consider are CBR and UBR:
CBR – indicates steady and guaranteed bandwidth and is defined by PCR (Peak Cell Rate), which defines the maximum transmission speed guaranteed.
UBR + – indicates a service that provides a guaranteed minimum bandwidth indicated by parameter MCR (Minimum Cell Rate) and a maximum bandwidth described by PCR, in this case, defines the maximum speed reachable on the link.

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