Not all equipment needs high-speed Internet access. Remote sensor monitors, remote controllers, weather stations, security systems, and similar devices can use standard phone lines to communicate with a distant computer. To simplify this type of connection, Saelig Company now offers developers an embedded "World Modem NET" module that operates at standard modem data rates from 300 to 56K bits/sec. The module includes a direct attachment arrangement (DAA) that lets it connect directly to the standard ring and tip telephone wires. The DAA provides 5 kV of isolation.
