JECCS is an integrated, processor-controlled communications and network management system housed in an S788 Lightweight Multipurpose Shelter (LMS) mounted on a Heavy High Mobility Multipurpose Wheeled Vehicle (H-HMMWV). Terminating long haul, tactical communications, JECCS enables connectivity to a Standardized Tactical Entry Point (STEP) via a wideband satellite or terrestrial communications link. JECCS includes all equipment racks, shelter-integrated UPS, AC/DC power, special electronic equipment mounting, tactical and commercial interfaces, as well as test equipment and supplies.