Special Features:

Med range voice band modem for metropolitian app; operates over conditioned or unconditioned lines; v.24/rs-232, sync/asnyc digital interface; selectable data rates up to 19.2 kbps; full duplex transmission over 4-wire cables; range of 19 km (12 miles) at 19.2 kbps; v.54 diagnostic loops; internal v.52 test pattern generator and error led; real-time, line performance mon; qam and trellis-coded mod; card version for the asm-mn-214 19" modem rack

Properties:

An item which modulates and demodulates one or more electrical signals. It connects data terminal equipment to a communication line or network such as telephone, radio or telegraph. It may include the multiplexing and demultiplexing circuits, circuit amplifiers and source(s) of carrier frequency. For items designed for light signals, see modem, fiber optic.