Paradyne DTU-1200D 1200Baud Modem With Power Supply

Product Description

The Paradyne DTU-1200D is an external modem designed for very low-speed data communication, operating at a maximum rate of 1200 Baud. This speed is significantly slower than modern standards but was typical for early dial-up data services, such as basic text-based communication and early remote terminal access. The modem connects to a computer via an RS-232 serial interface and to the telephone network using a standard phone line. This model is particularly suited for asynchronous communication, a common mode for serial data transmission where start and stop bits are used to frame each character. It likely supports basic modulation/demodulation standards like Bell 103 and V.21, which were prevalent for 300 and 1200 Baud communication. The DTU-1200D is a legacy device, representing a piece of networking history used when data transmission was a much slower and more deliberate process. Included with the DTU-1200D is its dedicated power supply, essential for its operation. The external design allows for easy integration into existing setups, and it typically features status LEDs to indicate power, transmit, receive, and carrier detect signals. This modem is primarily of interest for historical purposes, specialized low-bandwidth applications, or for maintaining compatibility with older systems that rely on such slow data rates.