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2-Wire Multirate Short Range Modem
RAD’s ASM-31 2-wire multirate short range modem is a sync/async modem that operates in full-duplex mode over 2-wire twisted pair lines, at selectable data rates from 1.2 kbps to 128 kbps (or 38.4 kbps in asynchronous mode) over distances of up to 5.4 kilometers (3.4 miles). Full duplex is achieved using the adaptive echo cancellation technique.
The ASM-31 multirate sync/async short range modem operates full duplex over a 2-wire twisted pair.
The ASM-31 can operate at selectable data rates from 1.2 kbps to 128 kbps.
Employs the adaptive echo cancellation technique
Interface options include V.24/RS-232, V.35, V.36, X.21, RS-530, built-in Ethernet bridge, router and G.703 codirectional 64 kbps. The analog line connectors are RJ-45 and terminal block.
The ASM-31 is available as a standalone unit or as a card for the 19-inch ASM-MN-214 rack that holds up to 14 cards.