Decode IDM 100 Modem

Description

IDM100 is a private-line modem for asynchronous data transfer over a single dedicated pair of wires. It uses pure Frequency Shift Key modulation, providing transparent full-duplex communication at distances up to 6 km, or semi-duplex communication at distances up to 8 km. Modem is considered transparent regarding speed rate (from DC to 9600 bps), data structure and communication protocol. Opposite the short-haul base-band modems, IDM100 utilizes high frequency carrier and FSK modulation, thus increasing immunity to EM and RF interferences. This feature makes IDM100 reliable even in harsh industrial environments. IDM100 has an ability to communicate over any type of conductor pair: shielded, unshielded, twisted and untwisted. Communication is possible even over metal sections, like sliding contacts or crane bearers isolated from ground. In some cases, it is also possible to communicate over signal lines (4-20mA transducers lines). Two models are produced: for group 19" rack mounting, or individual mounting in DIN 35mm-rail enclosure, wall-mounted or bench type.

Application

IDM100 FSK modem is used for interconnecting distant sites over 2W lines in industrial environment:

Interconnecting PLCs and SCADA terminals;

Connecting registration and alarm terminals to server;

Data transfer over existing signaling lines (4-20mA);

Interconnecting personal computers.