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T1 Explainer - Business Technology Explained

January 28, 2012
6:52 AM
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- Selected Business Technology Articles -

Combined T1 Telephone and Internet Service
An Integrated T1 line shares bandwidth between digital phone lines and broadband Internet service. Typically up to 12 phones lines can be accommodated. If the T1 line is set up to be a dynamic T1, then any bandwidth not used for telephone calls is automatically available for Internet access.

Bonding T1 Lines for Higher Bandwidth
While a standard T1 line provides 1.5 Mbps upload and download bandwidth, lines can be bonded to create total bandwidths of 3 Mbps, 4.5 Mbps, 6 Mbps, 7.5 Mbps, 9 Mbps, 10.5 Mbps and 12 Mbps. An advantage T1 lines have over fiber optic connections is that they are available nearly everywhere without special construction.

Medical Imaging Transmission
Medical images, such as those generated by Teleradiology equipment, have large file sizes due to high resolution. Rapid transmission between hospitals and medical centers requires high availability, high bandwidth telecommunication services. For smaller offices or infrequent use, a T1 data line might easily suffice. For medium and larger facilities, T3 lines and fiber optic carrier services are recommended.

Logistics and Transportation Industry Bandwidth
Trucking, warehousing, railroads and similar businesses need reliable voice and data bandwidth. Point to Point T1 lines provide exclusive and secure transmission between facilities for data transfers, PBX telephone tie lines, and IP telephony.

T1 Lines are Full Duplex
T1 lines are bidirectional or full duplex. That means that you can independently upload and download data at up to the full line rate of 1.5 Mbps simultaneously. LANs that use switched Ethernet are also full duplex, but LANs that use hubs operate at half-duplex. A half-duplex network cannot transmit and receive at the same time, cutting effective bandwidth by up to half.

How do T1 and DS1 differ?
In general conversation, T1 and DS1 refer to the same thing. But strictly speaking, T1 refers to a physical line circuit consisting of 2 pair of copper wires with strict line signal specifications. DS1 stands for Digital Signal level 1. DS1 is the service level you get on a T1 line. However, DS1 also is part of the digital signal hierarchy used in T3 lines and SONET fiber optic carriers.


B2B Technology Explained
Learn more about the latest developments in telecommunication services and other business technology. The T1 Explainer starts with T1 line services and expands to fiber optic bandwidth and other high speed digital telecom services.

Please browse the selected articles on the left, or get the latest at our blog, Telexplainer.

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