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DSL Digital Subscriber Line Modem
Submitted by oyahadmin on Tue, 01/29/2008 - 03:04.
| DSL is technology that dramatically increases the digital capacity of ordinary telephone lines (the local loops) into the home or office. DSL speeds are tied to the distance between the customer and the telco central office. DSL is geared to two types of usage. Asymmetric DSL (ADSL) is for Internet access, where fast downstream is required, but slow upstream is acceptable. Symmetric DSL (SDSL, HDSL, etc.) is designed for short haul connections that require high speed in both directions. Unlike ISDN, which is also digital but travels through the switched telephone network, DSL provides "always-on" operation. At the telco central office, DSL traffic is aggregated in a unit called the DSL Access Multiplexor (DSLAM) and forwarded to the appropriate ISP or data network. Although DSL only arrived in the very late 1990s, there have been more versions and alphabet soup than most any other new transmission technology. |
| Siemens |
Westell |
| Speed Stream 5260 | WireSpeed 2000 WireSpeed 2110 |
Shout Box |
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