Tone Telegraph Modem MTT-48/12 for Efficient Channel Multiplication

MTT is designed for use as a channel-forming equipment. MTT compacts up to 12 telegraph channels in the channels of IF (0,3 -3,4 kHz) or channel intervals of digital stream E1 (G.703). When connecting a digital stream, counter and transit switching is provided.

Setting of MTT operation parameters is performed by software and stored in the non-volatile memory of the device. During the setting it is set: <ul> <li>- the number of used THF channels or channel intervals of the E1 digital stream (up to two);</li> <li>numbers of the involved channel intervals of the E1 digital stream;</li> <li>the number of telegraph channels in each PM channel or channel interval of the E1 digital stream (from 1 to 24);</li> <li>information transmission speed.</li> </ul>After entering the operation parameters, MTT provides autonomous operation mode (without PC).