SHDSL, DSL Modem, MUX, Network Media Converter

SMi-52 SHDSL Ethernet Modem and Mux ASMi-52 SHDSL

The ASMi-52 SHDSL modem and multiplexer transmits two combined data streams – E1, Ethernet or serial –on an SHDSL link at various data rates over a range up to 10 km (6.2 miles). The modem also supports T1 applications. Incorporating TC-PAM technology for extending the transmission range, the ASMi-52 SHDSL modem enables carriers to cost-effectively reach more users with copper lines at higher data rates over larger distances in the Last Mile. The ASMi-52 SHDSL modem and mux answers the data transmission and Ethernet extension needs of enterprise users. Typical users include municipalities, utilities, corporate connectivity, and cellular backhaul.





DSL stands for Digital Subscriber Line. It is a term used to describe a range of high-speed (broadband) communications services offered over the Public Switched Telephone Network (PSTN). The PSTN uses a pair of copper wires to connect your telephone service to the national telephony network. DSL technology enables high-speed communications over these same copper lines by making use of the frequencies not used by voice communications – the frequency spectrum between 0kHz and 4kHz is used for your telephone service and 20kHz to 2.2MHz for your DSL (ADSL or ADSL2) service.





ADSL stands for Asymmetric Digital Subscriber Line service. It is called asymmetric because the download and upload speeds are not symmetrical (download is faster than upload).



ADSL2 (ITU G.992.3 and G.992.4) adds new features and functionality targeted at improving performance and interoperability and adds support for new applications and services. Among the changes are improvements in ADSL's data rate, an increase in the distance ADSL can reach from the local telephone exchange, dynamic data rate adaptation, better resistance to noise, diagnostics, and a stand-by mode to save power. ADSL2 also reduces the initialisation time from more than 10 seconds (as is required for ADSL) to less than 3 seconds. ADSL2 has the same signal footprint as ADSL.



ADSL2+ (ITU G.992.5) doubles the bandwidth used for downstream data transmission, effectively doubling the maximum downstream data rates, and achieving rates of 20 Mbps on telephone lines as long at 5,000 feet. ADSL2+ solutions will interoperate with ADSL and ADSL2, as well as with ADSL2+. ADSL2+ will include all the feature and performance benefits of ADSL2 while maintaining the capability to interoperate with legacy ADSL equipment.


Allied Telesyn Standalone Media Converter - AT- MC103XL 100TX to 100FX (SC)

AT-MC103XL media converters allow you to connect disparate cable types in your network. Media conversion offers you the ability to:

  •  Extend network distances by adding fiber only where it is needed
  •  Add new devices without replacing costly cable
  •  Keep pace with changing technology
  •  Integrate high-bandwidth devices into the network

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