bids are invited for repair, maintenance, and installation of plant/ systems/equipments (version 2) - industry unit; substation; service provider -1 poviding & installation of new gateway for remote data configuration to sldc/alds with licence and its application software as per following specifications: (1) multiple- master communication capability. (2) support iec60870-5-101/103/104, dnp3 serial/tcp modbus rtu/ ascii/ tcp, iec62056- dlms, iec61850, snmp, sntp, mqtt (3) data point support:- 5000 2 work of gateway remote data configuration to sldc (sending data to remote station on protocol at iec- 101). 3 work of gateway remote data configuration to alds (sending data to remote station on protocol at iec- 104). work includes: (a) complete checking of sas gateway panel including artchitecture and settings. (b) programming and configuration of gateway with addresses & settings (provided by client) to link from sub-station to data centre-modipuram. (c) complete testing of sas gateway and complete data communication & validationb b/w substation to data centre, modipuram. (firm shall ensure proper uninterrupted data transmission to alds for atleast six months free of cost.