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Difference Between Primary Rate Interface Vs. Basic Rate Interface

By Author: Rommy D'souza
Total Articles: 1

Primary Rate Interface or PRI is the telecom interface standard that is used for the office purposes and for the voice and data transmission between the user and the network. It uses ISDN or Integrated Services Digital Network and thus is one of the most popular interfaces used in market. This is the efficient way of offering telecom services to different offices across the world. It works through E carrier in Europe and contains 32 channels and it works through T carrier in USA and contains 24 channels.

Two types of services can be found

• Primary Rate Interface: Primary Rate Interface or the PRI is prepared and designed for offices and business purposes. This unique standardization of telecom interface contains one 64 kbps D channel and with that it contains 23 or 30 numbers of 64kbps B Channels. The set up and construction of the system is purely prepared for the sake of business concerns and bigger conglomerates.

• Basic Rate Interface: while we talk about big companies and joint working officials, we cannot ignore the biggest range of service users; the private or small enterprises. This channel also includes the use of telecom system in households also. This is the place where small enterprises and single concerns are the main players. It contains two 64kbps B Channels and one 16 kbps D channel for the use of the users from different parts of the world!

B channel is the carrier of the data needed by the user or you can say the client. These channels contain Video, Audio, Data, image files etc. The D Channel contains signalling related information. This channel decides whether the end user or the receiver receives the data properly or not! The

Primary Rate Interface is basically used for the office purposes. Here it is gives digital access to Public Switched Telephone Network or PSTN. Primary Rate Interface is directly connected to the head quarter of the system provider. 23 or 30 channels that are offered to the customer are used when they are needed for special performances. Suppose video conferencing is needed to be done, in that time, these channels are used.

BRI is prepared for home based usages and for small companies or for miniature concerns. There are several such concerns available across the world that loves to use this type of service. Initially the distance of BRI was very small and thus if you do not live close to the source, you may not be able to get the service. The system was slower as well! You needed to stay close to the source in order to get adequate speed and effectiveness.

Broadband ISDN is something that has provided the basis of ATM services. There are several such effective sides of BRI can easily be seen. While the name of the thing becomes ATM, the effective side of ISDN is still a part of the system. D channels contain the data related to signalling and the address of the client where the data should be reached in time!

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