3Com 037300-AQN1064 56K V.90 External FAX/Modem

Product Description

The 3Com 037300-AQN1064 stands as a representative example of external dial-up modems from the era when 56K V.90 was the peak of consumer dial-up technology. This external unit was designed to provide users with a straightforward way to achieve high-speed internet access and fax capabilities without needing to install an internal card. Its external nature also meant it could be easily moved between computers or upgraded independently of the computer's internal components. Connectivity was typically established through a standard serial port (RS-232) on the host computer, requiring a serial cable. The modem connected to the public switched telephone network (PSTN) using a standard RJ-11 telephone jack. This setup allowed for both voice and data transmission over a single phone line, although not simultaneously for data and voice unless specific features were supported. The modem's enclosure usually featured a series of LEDs to indicate the status of the connection, such as power, sending/receiving data, and carrier detection. Supporting the V.90 standard, the 037300-AQN1064 aimed to deliver download speeds of up to 56 Kbps, a significant improvement over older V.34 or V.32bis modems. It also incorporated essential protocols like V.42bis for data compression, which could further enhance effective throughput, and MNP for error correction, ensuring reliable data transmission. This external modem was a popular choice for users seeking a balance of performance, ease of use, and compatibility with existing computer systems.