annual comprehensive service maintenance contract for pcs (desktops, laptops etc), printers, document scanners, mfps, network switches, upss, lan backbone, cctv system, projector etc installed at the kolkata zonal office, kolkata zcc, kolkata zonal testing unit and kolkata zonal store unit, wbsedcl- 1 pc (hp pro 3090 mt / 705 g1 mt or quite similar in specification) 2 laptop (hp make) 3 laserjet printer(hp laserjet p1007 / p1020 plus / p1108 / 108a / 1188a or quite similar in specification) 4 laserjet network printer (hp 5200 n) 5 dot-matrix printer (80 / 132 column) 6 document scanner(hp g3110 / canon p208ii series or equivalent) 7 aio (inkjet / deskjet mfps)(hp 2135, 5811, 2000 s2 or equivalent) 8 network switch(cisco 2800 - 3800 seriesor equivalent) 9 lan (with 9 points approx.)(complete lan backbone emanating from terminals lan port till network switch including cable, ios, jacks, patch cords, patch panels etc. and in between network switch and network router) 10 lan (with 4 points approx.)(complete lan backbone emanating from terminals lan port till network switch including cable, ios, jacks, patch cords, patch panels etc. and in between network switch and network router) 11 lan (with 55 points approx.)(complete lan backbone emanating from terminals lan port till network switch including cable, ios, jacks, patch cords, patch panels etc. and in between network switch and network router) 12 cctv system(hikvision - with dvr and camera) 13 projector(sony vpl-ex100 or equivalent)