The Feeder Remote Terminal Unit (FRTU) shall be installed at 4 Way Ring Main Units (RMUs) sites. FRTU shall also be used for control of switching devices such as breaker, isolator switches etc. inside RMU panel from Master station(s). The supplied FRTUs shall be interfaced with the RMUs, communication equipment for which all the interface cables, TBs, wires, lugs, glands etc. shall be supplied, installed & terminated by the Vendor. The FRTUs need to be installed in separate panel. The FRTU panel also must house the SMPS based DCPS and the Batteries, Modems/Routers and other accessories to be supplied by the Bidder. All necessary requirements for such arrangement within the panel must be made. This specification covers design, engineering, manufacture, shop testing, inspection, packing and delivery of FRTU for RMU automation, complete with all accessories suitable for application for Distribution Automation system, installation & commissioning and integration to SCADA Control Centre, Kolkata with establishment of communication link. It is not the intent to specify completely herein all details of the equipment’s nevertheless the equipment shall be complete and operative in all respects and shall confirm to the highest standard of engineering, design and workmanship.