SDSL

SDSL (Symmetric Digital Subscriber Line) is a type of digital subscriber line (DSL) technology used for internet connections. Unlike ADSL (Asymmetric Digital Subscriber Line), which offers higher download speeds than upload speeds, SDSL provides equal upload and download speeds, making it particularly useful for businesses or individuals who require consistent performance in both directions, such as for video conferencing, hosting servers, or large file uploads.

SDSL operates over standard copper telephone lines, using higher frequencies than voice services, which allows it to deliver broadband internet. Its key feature is the symmetric nature of its speeds, with typical rates ranging from 144 kbps to 2.3 Mbps, depending on the specific service and distance from the provider’s infrastructure.

One of the advantages of SDSL is that it does not require a separate phone line, making it more cost-effective compared to traditional leased lines. However, the performance of SDSL can degrade with distance from the provider’s central office, as the signal strength weakens over longer distances.

While SDSL is less common today due to the rise of fiber optic broadband and more advanced DSL technologies like VDSL, it is still used in certain areas where other high-speed internet options are not available.