tender for supplying and commissioning of 55 inch large format display with movable bracket panel, 4k e-ptz camera and usb based speaker phone with expansion in department of education at alipore c us, university of calcutta. , supply installation testing and commissioning of large format display size- 55 (specification as per nit) (warranty 03 year) (panasonic/delta/sony or equivalent) , supply installation testing and commissioning of ops- i5,12 gen, 16gb ram, 512 ssd, win 11pro, power adapter (specification as per nit) (warranty on ops is 03 year and rest are 1 year). (atdsc/dell /hp or equivalent) , supply, installation, testing and commissioning of usb based : 4k resolution. auto framing; eptz with 10x digital zoom, 2 builtin microphone supporting advance echo cancellation. view angle 126º ( d ) / 120º(h)/ 85º(v), f-2.72mm; f2.5, dnr 2d &3d dnr, white balance :auto/manual/one push 3000k / 3500k / 4000k / 4500k / 5000k / 5500k / 6000k / 6500k /7000k; focus : should be auto/manual/one push; exposure : auto/manual; backlight contrast on/off; snr : 55 db; video compression : yuy2, mjpg, h.264, h.265; interface: usb, supports usb audio; usb protocol uac, uvc (specification as per nit) (warranty on auto framing 4k e-ptz camera is 03 year). (atdsc/polycom/cisco or equivalent) , supply installation testing and commissioning of usb based speaker phone (specification as per nit) (warranty on battery is 01 year and rest 3 year). (atdsc/yamaha/clearone or equivalent) , supply installation testing and commissioning of cable & connectors , installation, testing and training charges