Tender For supply, transportation, installation, testing and commissioning of 48 v/ 50 amps smps based power plant (2+1) configuration using 3 nos of 48 v/ 25 a module to charge the vrla battery bank of 48 v / 200 ah with lightening and surge protection as per specification no - rdso/spn/ tl /23/99 (ver-4) (amdt.1) or latest for telecom purpose. [ warranty period: 30 months after the date of delivery ]