Remote Modem Control
Original Publication Date: 1984-May-01
Included in the Prior Art Database: 2005-Feb-04
A modem is, by definition, transparent to data. This means that the terminal cannot communicate with it using the data leads unless the modem has been told by another means that the message sent by the terminal must be interpreted. This problem has occured at the implementation of remote modem test applications. One solution may be provided by using the test control (TC) lead. This solution has a serious limitation. The modem must be physically directly connected to the terminal through the EIA interface. In order to solve this problem, it has been proposed to replace the physical TC lead by logic information.