M-987-2A1K

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Interface – Telecom

M-987-2A1K is a multipurpose modem developed by Nortel Networks specifically for transmission and communication applications. This is considered one of the most popular high-performance, entry-level modems for both the North American and Asian markets. It is a 2-wire, 2-tone analog modem which has a range of features, including high speed data, VoIP radio, Fax, and Voice.

The M-987-2A1K operates using the ASTM C11x standard, which is the widely accepted system for digital and analog communication over telephone lines. The modem operates in both the Transparent and Non-Transparent modes. In Transparent mode, the modem can transmit and receive data and voice simultaneously, up to 56kbps for data, 16kHz for voice, and 2.4kHz for fax. In Non-Transparent mode, it can send and receive data and voice in both directions, as well as transmit up to 4 multiplexed channels simultaneously, up to 2.4kHz for fax.

M-987-2A1K is targeted towards applications in telecom, oil & gas, industrial control and automation, Unified Communication and Security for the North American and Asian markets. It is being used in various applications such as data, voice, video, and fax transmission. It is also used in industrial applications such as remote maintenance, remote diagnostics, remote data acquisition, and more. Due to its flexibility and reliability, the M-987-2A1K is widely used in industrial, commercial, and residential markets.

The M-987-2A1K relies on various technologies in order to facilitate data and voice transmission. One such technology is Forward Error Correction (FEC), a powerful tool which enables fast and reliable transmission by compensating for packet loss or transmission errors. This is done by automatically detecting errors in the transmission and correcting them before they reach the receiver. The modem also uses Adaptive Time Domain Multiplexing (ATDM) for transmitting multiplexed channels, which can be used for voice and data simultaneously. ATDM allows for an asynchronous data rate, which is much faster than current standard bit rates.

Aside from data and voice, the M-987-2A1K also supports Fax and Voice. Fax can be transmitted at up to 4.8Kbps, while Voice can be transmitted at up to 32Kbps over VoIP lines. The modem is also capable of encoding and decoding G.711, G.717, G.723, G.726, G.729a, and G.732 audio codecs, making it suitable for use in both VoIP and ISDN lines.

The M-987-2A1K is an excellent choice for transmitting data, voice, and video in both wired and wireless applications. With its robust performance and numerous features, the M-987-2A1K is ideal for a variety of transmission and communication applications.

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