Features, Benefits, Description | ADTRAN ISDN 2B1Q specification

U-BR1TE

FEATURES

•Conforms to ANSI T1.601-1992

•Plugs into WECO D4 Channel Bank, ADTRAN BR1/8 BR1TE bank, and ACT 1241

•Designed for use in SLC-96 terminals

•Basic Rate 2B+D service

•Faceplate Bantam jacks for maintenance testing

•TR-NWT-000397 3 DS0 format and T1 facility performance monitoring

•Loopback features available on faceplate

•18,000 ft. nominal range, mixed gauge

•U-BR1TE/MLT supports Mechanized Loop Testing

BENEFITS

•Extends range of 2-wire U-interface using T carrier

•Suitable for both Central Office and customer premises environments

•Use of D4 bank adds flexibility and extends life of D4 equipment

DESCRIPTION

The ADTRAN U-BR1TE is a device which enables transport of ISDN Basic Rate (2B+D) information over T carrier lines. This is accomplished by the insertion of the two "B" channels at 64 kbps and a single "D" channel at 16 kbps into 3 DS0 time slots. The U-BR1TE provides a standard U-interface which operates at 160 kbps full duplex over a single twisted pair of wires. The U-BR1TE may be used at both the Central Office Terminal location (COT) and the Remote Terminal location (RT). Clear Channel capabilities (B8ZS) are not required of the T1 facility if Zero Byte Suppression is enabled. The U-interface available at the U-BR1TE conforms to ANSI standards and performs all Layer 1 functions.

The U-BR1TE plugs into a single D4 channel slot. It occupies the time slot in which it is inserted, and the next two adjacent time slots when delivering 2B+D service. The U-BR1TE meets the ones density requirement of the T carrier through the use of zero byte substitution and associated flags in the “D” channel DS0 slot according to TR-NWT-000397.

Maintenance and testability is provided for on the U-BR1TE's front panel. A four-character display provides an indication of Loop Activation, Out-of-Service, and Test. The Select button is used with the four-character display to determine which network element is to be looped back. The B1-B2 switch determines which channel is to be looped back. The LP-CR switch determines the direction of the loopback. The Test button, which activates the unit's test features, is recessed to prevent any inadvertent operation.

The U-BR1TE/MLT contains the same capabilities as the U-BR1TE, with the addition of compatibility with Mechanized Loop Testing (MLT 3.0/ISDN) according to TR- NWT-000397, Issue 3, June 1992. When configured and installed in a SLC-96 channel bank, the U-BR1TE/MLT allows testing the local loop cable drop using an Extended Pair Gain Tester (XPGTC).

ISDN 2B1Q specifications

ADTRAN ISDN 2B1Q technology is a digital transmission method that enables high-quality voice and data communication over traditional copper telephony lines. It is particularly notable for its ability to utilize the existing infrastructure of Plain Old Telephone Service (POTS) while providing enhanced features found in integrated services digital networks (ISDN).

The acronym 2B1Q stands for two binary one quaternary, which highlights the modulation scheme employed in this technology. It effectively combines two bits of data into a single symbol that can convey more information than a traditional binary system. This modulation method allows for the transmission of two 64 Kbps B channels alongside one D channel, which has a signaling speed of 16 Kbps. Consequently, the ISDN 2B1Q configuration provides users with the capacity for simultaneous voice and data transfers, greatly enhancing productivity and connectivity.

One of the primary features of ADTRAN ISDN 2B1Q is its ability to deliver multiple calls simultaneously. This is achieved through the two B channels, which can each support voice or data calls independently. Moreover, the D channel is responsible for managing call setup, signaling, and control, freeing the B channels to maintain the active communication sessions without interruption.

Another significant characteristic of ADTRAN ISDN 2B1Q is its support for various applications, including video conferencing, file transfers, and remote access. This versatility makes it an ideal solution for small to medium-sized businesses that rely on efficient communication systems for collaboration and operational efficiency.

ADTRAN’s approach to ISDN technology also emphasizes reliability and quality. The digital nature of ISDN 2B1Q ensures that voice transmissions remain clear and free from the noise and distortion characteristic of analog systems. Furthermore, the technology provides enhanced error detection and correction mechanisms, contributing to a more robust and dependable communication experience.

In addition to voice and data services, ADTRAN ISDN 2B1Q supports features such as caller ID, call waiting, and call forwarding, further enriching the user experience. Its compatibility with various networking devices and systems allows businesses to integrate ISDN into their existing telecommunication infrastructures without significant changes or upgrades.

In conclusion, ADTRAN ISDN 2B1Q stands out as a reliable and versatile technology that brings digital communication capabilities to traditional telephone lines. With its support for simultaneous voice and data calls, rich feature set, and compatibility with existing systems, it serves as a valuable solution for businesses looking to enhance their communication effectiveness while leveraging their current infrastructure.