Includes attached/custom-wired Winford Engineering RJ45/8P8C breakout interface board and wiring as pictured. This appears to be a previous-owner modification for interfacing the RCS-8V control connections through an RJ45-style connector. Modification has not been independently tested. Controller powers on and indicator light illuminates; no further functional testing performed.

The factory controller supplies 12V DC control voltage to operate the remote relay box, and the RCS-8V controls as many as five antennas, so this modification would make sense for somebody’s particular ham-radio installation.