The 232conv-09 is a 9 pin female RS-232 to RS-422 serial converter for most IBM compatibles.
Most of the Systems from Gilderfluke and Co. use the standard known as RS-422. RS-422 allows a PC to communicate with many pieces’ equipment simultaneously, and/or from a distance of up to a mile. These converters are optimized for use with PCs and Gilderfluke and Co. Systems. The RS-422 serial connection is the RJ-12 connector used on most of our equipment.