Special Features:

Uses v.23 and v.21 for transmission and control; two rj11s; leased line and dial backup, phone; 230v AC 50/60hz oroptional 110v, ac 50/60hz

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.