A T1 line is a dedicated transmission connection between a service provider and client. It uses an advanced telephone line to carry more data than a traditional standard analog line that carries a single channel of data at 64 Kbps.
T1 line speed is consistent and constant. A T1 line can carry 24 voice channels for telephone calls or digital data at a rate of 1. T1 lines use pulse-code modulation, which allows coder and decoder sharing by multiple voice trunks. Channels are preconfigured to carry voice traffic or Internet data. Clients lease full or fractional T1 lines. Fractional T1 lines do not experience performance degradation, even though only a few channels are used. These lines are leased from connection providers or telephone companies at a cost based on the distance of connection.
An advantage to T1 connections is that they are able to maintain and provide a reliable connection that remains constantly accessible and readily available when data transmission is needed. A T1 connection line relies on 2 wire pairs that serve separate functions: 1 data transmission, 2 data receiving. A multiplexer is similar to a digital switch that accepts 24 individual channels and has a singular multiplexed output connected to the data transmission line.
These digital signals are multiplexed over different time slots, enabling several channels to be carried on the same line. This is why each channel is also called a timeslot. Each channel that goes into the TDM, is initially created from analog signals that are encoded and translated via a PCM.
Sign up for our Newsletter! Mobile Newsletter banner close. Mobile Newsletter chat close. Mobile Newsletter chat dots. Mobile Newsletter chat avatar. Mobile Newsletter chat subscribe. How does a T1 line work? The E2 line is also available but less common. Generally speaking, a T1 line is not cost-effective for individual or residential use.
In this case DSL or cable service is a better choice. Small businesses and government agencies — particularly those using a PBX — will benefit most from a dedicated T1 line. Please enter the following code:.
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