|What do we do?
We specialize in the sale and repair of data communications equipment,
focused mainly on WAN gear. Our company National Data Mux was
established in 1989 and since then we have accumulated in depth
experience with G.SHDSL NTUs, CSUs, DSUs , Routers, Remote access
products, Terminal Servers, T1, E1 products like bandwidth managers,
DACS, channel banks and many others. National Data Mux sells all over
continental America and our exports to the rest of the world are
increasing. Please feel free to contact us for all you data
communication needs. The desire to help you is our delight.
What is SHDSL?
Also known as G.991.2, G.SHDSL is
an international standard for symmetric DSL developed by the ITU.
G.SHDSL provides for sending and receiving high-speed symmetrical data
streams over a single pair of copper wires at rates between 192 kbps and
2.31 Mbps. G.SHDSL was developed to incorporate the features of other
DSL technologies, such as ADSL and SDSL and will transport T1,E1, ISDN, ATM and IP
signals. This is the first DSL technology to be developed from the
ground up as an international standard.