High Bit Rate DSL is the most mature DSL and is a symmetrical (an equal amount of bandwidth is available in both directions) DSL technology.
(High-data-rate Digital Subscriber Line, High-speed DSL). One of the older DSL implementations, providing equal upstream and downstream traffic. HDSL requires minimum two twisted pairs and offers data rates up to 2,048 Kbps. HDTV
High-bitrate Digital Subscriber Loop
HDSL - High Rate Digital Subscriber Line
High bitrate digital subscriber line - A symmetric DSL technology that provides a maximum bandwidth of 1.5 megabits per second in each direction over two phone lines, or 2 Megabits per second over three phone lines.
High data rate symmetric DSL - T1 or E1 speed achieve via multiple modems and short distances.
Hith-bit-rate Digital Subscriber Line
Similar to ADSL however it provides the same upload and download speed. Eg. 2mb up and 2mb down. This internet service is usually suited for head offices or businesses with a requirement for high speed internet access.
By using sophisticated coding techniques, a large amount of information may be transmitted over copper. The HDSL scheme uses such coding over four copper wires and is primarily intended for high capacity bi-directional business services.
Used for business level DSL access by providing T1 transmission over the existing twisted pair (phone line). Does NOT allow for line sharing with analog phone systems. Requires 2 cable pairs up to 12,000 feet. (HDSL-2 requires only one cable pair and spans 18,000 feet). Symmetric, meaning both directions are transferring data at the same speed.
Available at 1.5 or 2.3 Mbps, HDSL does not provide standard telephone service over the same line. It is seen as an economical replacement for a T-1 line.
A flavor of DSL that delivers up to 1.544 Mbps of data symmetrically over two copper twisted-pair lines. The range of HDSL is limited to 12,000 feet; signal repeaters extend the service farther from the CO.
Homeowner vacancy rate hub
The oldest of the DSL technologies, HDSL continues to be used by telephone companies deploying T1 lines at 1.5 Mbps and requires two twisted pairs. See DSL, ADSL, IDSL, RADSL, SDSL, VDSL, xDSL.
A service with a bandwidth of approximately 6 Mbps and is used to provide T1 digital service (1.544 Mbps) over standard copper telephone lines.
High bit-rate DSL is a form of DSL that provides T1 (1.5Mbits/second) or better transfer rates and is meant to displace business T1 connections. HDSL requires much less bandwidth than standard T1 encoding to transfer the same amount of data.
HDSL service was the earliest variation of DSL to be widely used. It provides equal bandwidth for both downloads and uploads, but requires multiple phone lines to accomplish this.
High Speed Digital Subscriber Loop
High bit rate Digital Subscriber Line. Symmetric DSL service providing data rate of 2,048 bps (E1) over three pairs of copper wires or 1,544 bps (T1) over two pairs of copper wires. HDSL is defined in ITU-T G.991.1. Also see DSL. Compare with SHDSL.
High-Bit-Rate Digital Subscriber Line. One of a group known as DSL technologies, HDSL gives network or Internet access over existing voice lines at 1.5Mbps on T1 lines with 2 pairs combined.
'High-speed' or high data rate DSL technology.
High Bit Rate DSL. Downstream and upstream bandwidth is about 1.5 mbps using two telephone lines with DSL service. Available in selected markets only.
High-bit-rate Digital Subscriber Line- Designed to be a cost-effective method of delivering T1/E1 line speeds over unconditioned copper cable, without the use of repeaters.
high-data-rate digital subscriber line. One of four DSL technologies. HDSL delivers 1.544 Mbps of bandwidth each way over two copper twisted pairs. Because HDSL provides T1 speed, telephone companies have been using HDSL to provision local access to T1 services whenever possible. The operating range of HDSL is limited to 12,000 feet (3658.5 meters), so signal repeaters are installed to extend the service. HDSL requires two twisted pairs, so it is deployed primarily for PBX network connections, digital loop carrier systems, interexchange POPs, Internet servers, and private data networks.
HDSL is a symmetric service, offering the same data rate transmission both towards the end-user and away from the end-user, it will also be a key modem technology for the increasing number of home and small-office based web servers. As a symmetric technology, HDSL will service the T1/E1 transmission needs, as well as the growing market for fast access to Internet, interactive multimedia, and home / business-based web servers.
High-bit-rate Digital Subscriber Line. This is the first type of DSL service and is still used by telephone companies for T-1 lines.
High-bit rate Digital Subscriber Line. The earliest variation of DSL. It is used for wideband digital transmission within a business and between the telephone company and a customer. HDSL is symmetrical meaning an equal amount of bandwidth is available in both directions.
High bit rate Digital Subscriber Line. See DSL Types for full definition.
(High data rate Digital Subscribe Line) Modems on either end of one or more twisted-pair wires that deliver T-1 or E-1 transmission speeds. Presently, T-1 service requires two lines and E-1 requires three.
one of the earliest forms of DSL services to be widely used. It is symmetrical, offering the same data rates upstream and downstream. The maximum data rate is however lower than that for ADSL.
An abbreviation for high-bit-rate digital subscriber loop. Learn more about HDSL...
One of several digital subscriber line (DSL) technologies. HDSL (also known as "high-speed digital subscriber line") provides network or Internet access over voice lines at 1.5 megabits per second. See DSL.
A high performance twisted pair transmission technology, best known as an enhanced transport mechanism for T1 or E1 service. It is designed for the Local Loop between a customerâ€(tm)s premises and an area exchange central office.
HDSL-2Uses four wires (two pairs) rather than the standard two wires and is typically used to replace T1 lines. Supports symmetric service at 1.54 Mbps but does not support POTS. Some versions go up to 2.3Mbps. There is no industry standard for HDSL. HDSL-2 provides similar speed capabilities as HDSL but utilizes a single wire pair. HDSL-2 also minimizes interference with other communication technologies. There will be an industry standard for HDSL-2.
High-bit-rate Digital Subscriber Line, a technology for the business market in commercial operation several years, and using two wire pairs with 1.5 Mbps each way.
High data rate Digital Subscribe Line: Modems on either end of one or more twisted pair wires that deliver T1 or E1 speeds. At present T1 requires two lines and E1 requires three. See SDSL for one line HDSL.
High Bit Rate Digital Subscriber Line. HDSL was developed as a faster cousin to ISDN (64-128Kbps) technology. This enabled telephone companies to offer T1 speeds (1.544Mbps) over regular copper phone wire without the use of repeaters. It is the oldest and most heavily deployed version of DSL.
High Bit-Rate Digital Subscriber Line (HDSL) is generally used as a substitute for T1/E1.
High-bit-rate Digital Subscriber Line. A digital line that uses the existing twisted pair copper telephone network to achieve speeds of up to 2.048 mbps up to 3.6 km.
High Speed Digital Subscriber Line. This is a DSL technology which could have data rates up to 8Mbps. The range of HDSL is limited to 12,000 feet, but there are technologies to extend that range.
High speed DSL specifically a technique for extending T1 transmission distances beyond the present limitation of 6,000 feet.
High bit-rate Digital Subscriber Line. The oldest of the DSL technologies, HDSL continues to be used by telephone companies deploying T1 lines at 1.5 Mbps and requires two twisted pairs.
High-speed Digital Subscriber Line. This is a symmetrical modulation technique that uses two or three pairs of wires.
High-bit-rate-Digital Subscriber Line (DSL). Bandwidth is symmetrical, or equal in both directions of the data transmission, unlike ADSL which provides a higher download than upload speed.
High bit rate DSL. See DSL Family in this HOWTO for more.
high-speed digital subscriber line. The DSL service widely used for T-1 lines. HDSL uses four wires (two pairs) instead of the standard two wires used for other DSL flavors. HDSL supports symmetrical service at 1.54 Mbps but does not support plain old telephone service.
High Data rate Digital Subscriber Line (equipment information) 1.54 Mbps T1 or 2.048 Mbps E1 symmetrical
High bit - rate Digital Subscriber Line. Modems on either end of one or more twisted wire pair that deliver T1 speeds. This requires two lines at this point in time.
(High bit-rate Digital Subscriber Line) The main characteristic of HDSL is that it is symmetrical or in other words an equal amount of bandwidth is available in both directions.
High-bit-rate Digital Subscriber Line. A standard defined by the TlE1.4 standards committee, designed to be a cost-effective method of delivering T1/E1 line speeds over unconditioned copper cable.
(High-bit-rate Digital Subscriber Line) - The DSL service widely used for T-1 lines. HDSL uses four wires (two pairs) instead of the standard two wires used for other DSL flavors. Supports symmetrical service at 1.54 Mbps but doesn't support POTS.
High-bit-rate Digital Subscriber Line. A technique for high bandwidth, bidirectional transmission over copper wire for TI and El services.
High Bit-rate to Digital Subscriber Line- Modems on either end of one or more twisted wire pair that delivers T1 speeds. Requires 2 lines.
High bit-rate Digital Subscriber Line that delivers T1 speeds. This requires two lines at present.
High-speed digital subscriber line that utilizes existing copper infrastructure of the telephone companies. HDSL offers video and data transmission rates of 1.5 Mbps up to 12,000 feet. See also DSL.
A symmetrical service that can be deployed over a distance of about 2.2 miles (3.6 kilometers). HDSL is deployed over two twisted-pair cables, and it affords equal bandwidth in both directions (i.e., it is symmetrical). HDSL2 provides symmetrical capacities of up to 1.5Mbps or 2Mbps over a single twisted-pair cable.
See high-bit-rate digital subscriber line
high-bit-rate digital subscriber line. A line operating bi-directionally at 1.544 Mbps over existing one pair wires going from the local exchange to each home or business without repeaters.
Abbreviation for high data-rate digital subscriber line. A DSL operating at a high data rate compared to the data rates specified for ISDN.
( igh bit-rate igital ubscriber ine) – A circuit consisting of one or more twisted wire pair that deliver T1 speeds. At present, this requires two lines.