sitc of audio visual system work at seminar hall in rajiv gandhi national cyber law centre at nliu bhopal , data video projector technology-3 lcd technology; lcd panel -0.63 inch colour light output-5500 ansi lumens white light output-5500 ansi lumens resolution-xga – (1024x768) contrast ratio - 15,000:1 image size- 30inch – 300 inch focal distance - 18.2 mm – 29.2 mm lamp - 300w – 5000 hrs / 10000 hrs durability (economy mode) multi pc projection- required split screen - required input connectivity-usb 2.0 type a, usb 2.0 type b, rs-232c, ethernet interface (100 base-tx / 10 base-t), gigabit ethernet interface, wlan (optional), wireless lan ieee 802.11b/g/n, vga in (2x), vga out, hdmi in (2x), composite in, rgb in (2x), rgb out, mhl, stereo mini jack audio out, stereo mini jack audio in (2x) , digital booster amplifier input voltage - 230vac or 24vdc rated output (rms) - 480w frequency response - 60hz to 19khz distortion - <1% at rated out put max power consumption - 1600 va max power - 990w loudspeaker output - 100v, 70v, 8/4 ohm line inputs connectors - 3-pin xlr, balanced loudspeaker output connector - screw, floating line inputs gain - 40db line inputs impedance - >20k ohm , mixer amplifier inrush current - 36a frequency response - 80 hz to 18 khz (+1/-3 db @ -10 db ref. rated output) distortion bass control - max. ± 8 db treble control- max. ± 8 db connector - cinch, stereo converted to mono sensitivity- 200 mv to 300 mv loudspeaker output 100 v - 120w inbuilt bluetooth for audio streaming - required 4 microphone/line inputs, plus music source input - required , gooseneck microphone, capsule type - electret condenser frequency response - 20hz-20khz polar pattern - cardioid sensitivity - -40db impedance - 280 o connector - xlr power requirement - 11-52v dc phantom power 21” gooseneck microphone with base on/off switch & led - required anti mobile & rf interference technology - required , motorized projection screen size - 6 x 8 ft (120 inch) housing - octagonal shaped ratio - 4:3 type - synchronous motor with rf remote fabric - high gain matt white view angle - >160 ° , uhf wireless microphone system receiver - dual channel frequency response - 50hz-15khz polar pattern - cardioid output - balanced xlr and unbalanced ¼ jack power req. (hand mic) - 2 x 1.5v aa power req. (receiver) - 12vdc adapter, 240v ac 50hz receiver - dual channel frequency response - 50hz-15khz up to 200 selectable frequencies. - required anti mobile & rf interference technology - required frequency lock option to minimize tampering during operation - required two microphones can be used at the same time - required , on line ups with in-built batteries rated capacity - 3 kva / 2700 watts input input voltage range (load < 50%) - 118 ~ 295 v (± 5 v) input voltage range ((load > 50%)) - 160 ~ 295 v (± 5 v) frequency - 40 ~ 70 hz phase - single phase with ground power factor - ? 0.99 @ full load output voltage range - 208 / 220 / 230 / 240 v ac frequency range (synchronized range)- 47 ~ 53 hz or 57 ~ 63 hz frequency range (battery mode) - 50 hz ± 0.1 hz or 60hz ± 0.1 hz thd (linear load) - ? 2% thd (non linear load) - ? 4% overload - > 110%, 30s turn to bypass mode; > 150% instant turn to bypass crest factor - 3:1 (max) short circuit protection - 5 cycles turn off inverter, no transfer to bypass, provide alarm (ac mode), 5 cycles turn off inverter, provide alarm(battery mode), input fuse blown or breaker action waveform - pure sinewave transfer time - zero (ac mode to battery mode) - < 4 ms (inverter to bypass mode) efficiency - 85%~ 92% battery dc voltage - 72 v (7ah* 6 nos. battery inside);,charge current - 1.5 amps communication interface - rs232,snmp (optional) indication - lcd display;noise level - less than 50dba @ 1 meter (with fan speed control) ups overload / ups short-circuit - 110% / 300% , metal rack for amplifiers size - 12u - 550x450mm rack front toughened glass door, turning angle of front door over 180° - required cable entry on top & bottom cover - required easy wall mount rack with lock & key - required , complete system installation & integration cables / switchersprojector mounting kit / splitters / connectors etc.