The heavy manufacturing environment is replete with examples of machine tools, instruments and other devices being employed and often under the control of a PC. Such control can be effected by linking the PC and these devices by data communications. However, interface conversion is usually needed to effect the communications. Data generally comes into and out of the PC through an RS-232 interface. On the other hand the tools, instruments and other devices may employ the RS-422 interface, which uses differential signaling to combat the high electrical noise prevalent when high current machinery is in operation.

The Model 63-2SA provides the needed interface conversion for the manufacturing plant. It provides the needed interface conversion, full duplex, at a data transmission rate up to 115.2 KBPS for the manufacturing plant. However, it does even more. It has LED indicators for the TD and RD pins to show when these are active. It has a DTE/DCE switch so that it can be consistent with the data equipment attached.

The illustration above shows a ready application for the Model 63-2SA - a factory machine tool being controlled by a PC.