Supply, Installation and Commissioning of Audio and Video Conference system with LED screens for conference hall, Admin Building, SSTPP, MPPGCL Dongalia

Control Unit:- Conference System Central Controller Unit features the latest microprocessor chip, enabling automatic detection of connected units. This central controller allows for the selection of the number of active speakers and supports the simultaneous use of 2, 3, or 4 microphones. It includes a built-in audio gain processing circuit that minimizes feedback and enhances vocal clarity throughout the room. For camera tracking, it supports RS-232 or RS-422 communication protocols, allowing control of up to four cameras and compatibility with VISCA, PELCO-D, and PELCO-P camera control codes. The unit has four video inputs and one output port, supporting both SD and HD SDI video formats. Additionally, it features Dante digital output, providing flexibility to connect with various Dante-enabled systems. With auxiliary input and output options, users can easily connect external audio sources for added functionalities like recording and PA/music integration. The unit is housed in a robust pressed steel body with a 1RU form factor. Make- Bosch / HARMAN / MARTIN/ Erhtpot /Beyerdynamic/ Televic/ equivalent

Conference Delegate and Chairmen unit Flush Mount Chairman Unit with mute button which mute integrated Mic and override button which prioritizes itself over all other delegate Units. The unit comes with a screw type detechable microphone port to connect gooseneck mic. Integrated Microphone with variable length of 12inch.The microphone features a cardioid condenser polar pattern and a frequency response range of 50Hz to 20kHz. With a sensitivity of -20dBV (+/-3dB) at 0dB=1Vpa, f=1kHz, it efficiently converts sound pressure into electrical signals. It can handle a maximum input sound pressure level of 110dB with low distortion (< 5% at f=1kHz). The signal-to-noise ratio (A-weighted) exceeds 100 dBA (with THD < 1% at f=1kHz), and distortion is less than 0.1%. The microphone operates on a 24V DC power supply provided by the controller. The unit interfaces via an RJ45 network input. The microphone operates on a 24V DC power supply (supplied by the controller) with a power consumption of 0.72W. It connects via an RJ45 network input and boasts a recessed enclosure design for discreet integration. Constructed with a high-quality copper zinc alloy die-cast body, it offers durability. Its detachable screw-type gooseneck microphone enhances flexibility in positioning. Additionally, it features a backlit speak & override button for improved usability, especially in low-light environments. Make- Bosch / HARMAN / MARTIN/ Erhtpot /Beyerdynamic/ Televic/ equivalent

Extension cable- Extension cable between the units (Included Cat-6 1.5 Mtr) or between the controller and unit -10 meter long including all accessories. Make- Bosch / HARMAN / MARTIN/ Erhtpot /Beyerdynamic/ Televic/ equivalent

Two Zone Mixer Amplifier An audio amplifier supports low impedance (8/16 Ohm) and 70/100V line configurations, delivering 2 x 100W at 8 Ohms or 200W for 70/100V lines. It features low total harmonic distortion, < 0.1% at 1 kHz and 15W (8/16 Ohm), and < 0.2% at 1 kHz and 30W (70V/100V). The frequency range extends from 20 Hz to 20 kHz. Control options include line volume, microphone gain, tone control (bass and treble), master volume, and a function selector. Connectivity options consist of Euroblock for microphones, RCA and Minijack for line inputs, RCA for line output, terminal connections for amp output, and RJ45 for RS485. Additional features include Bluetooth, RS485 command support, anti-feedback, and microphone priority. Power supply is 100-240V at 50/60Hz. Make- Bosch / HARMAN / MARTIN/ Erhtpot /Beyerdynamic/ Televic/equivalent

Cabinet loudspeaker A speaker system features a driver unit comprising 4 x 2.5" neodymium magnets with a rated impedance of 4 Ohms. It delivers a rated power of 100W (400W peak) and boasts a sensitivity of 94 dB at 1m/1W, achieving a maximum SPL of 111 dB. The frequency range spans from 106 Hz to 20 kHz. The enclosure is constructed from an ABS reinforced box, complemented by an aluminum alloy grill. It offers a diffusion angle of 20° vertically and 120° horizontally. Make- Bosch/Harman/Martin/Erhtpot/Workpro/EAW/ equivalent

Ceiling Loudspeaker A speaker system featuring a 6.5” mid-bass driver and a 1” tweeter. It operates at 8 Ohms and supports 100V and 70V input modes, with rated power outputs of 100W at 8 Ohms (400W peak), 80W/40W/20W/10W at 100V, and 40W/20W/10W/5W at 70V. The effective frequency range spans from 75Hz to 20KHz, with a sensitivity of 95dB (1m/1W) and a maximum SPL of 113 dB. The grille is made from aluminium alloy, while the back shell is constructed from pressed steel, ensuring durability and performance. Make - Bosch, Harman, Martin, Erthpot, Workpro, EAW/ equivalent

98 Inch Display:- UHD Standard Signage, Screen Size: 98", Brightness(Typ.) : 500 cd/m², Surface Treatement (Haze) : 28%, Bezel : 14.9 mm (Even bezel), Depth : 86.1 mm, Interface : HDMI(3)/ DP/ DVI-D/ USB 2.0/ RS232C/ RJ45/ Audio/ IR Built-in Speaker, Screen Size: 98", Panel Technology: IPS, Back Light Type:Direct, Aspect Ratio: 16 : 9, Native Resolution: 3840 x 2160 (UHD), Refresh Rate: 60Hz, Brightness: 500nit (Typ.), Contrast Ratio: 1,200:1, Dynamic CR 1,000,000:1, Color gamut: NTSC 72%, Viewing Angle(H x V): 178 X 178, Color Depth: 10bit, 1.07Billion colors, Response Time: 8ms (G to G), Surface Treatment(Haze): 28%, Life time: 50,000Hrs (Typ.), Operation Hours (Hours/Day): 24/7. Input:HDMI (3, HDMI1/HDMI2 : HDCP 2.2/1.4, HDMI3 : HDCP 1.4), DP (1, HDCP2.2/1.3), DVI-D (HDCP1.4), Audio In, RS232C IN (1, 4pin Phone-jack), RJ45(LAN), IR IN, USB2.0 Type A(1), Output: HDMI Out, Audio Out, RS232C OUT (1, 4pin Phone-jack), Operation Temperature: 0 °C to 40 °C, Operation Humidity: 10 % to 80 %, including all accessories ,Make- LG / SAMSUNG / BARCO/ equivalent

65 Inch Display UHD Signage Display, Screen Size: 65",Panel Technology: IPS, Back Light Type: Direct, Aspect Ratio: 16 : 9, Native Resolution: 3,840 x 2,160 (4K UHD), Refresh Rate: 60 Hz, Brightness (Typ.): 500 nit, Contrast Ratio: C111,000 : 1, Dynamic CR: 1,000,000 : 1, Color gamut: BT709 95%, Viewing Angle (H x V): 178 × 178, Color Depth: 1.07 Billon Colors (10 bit (D)), Response Time: Tr : ms / Tf :10ms, Surface Treatment (Haze): 28 %, Life Time (Min.): 50,000 Hrs, Operation Hours (Hours / Days): 24 / 7 operation, including all accessories. Make- LG / SAMSUNG / BARCO/ equivalent

24 Inch Display Picture/Display - Panel Size 23.8 inch / 60.5 cm, Aspect ratio -16:9, LCD panel type -IPS technology, Backlight type -W-LED system, Pixel pitch- 0.275 x 0.275 mm, Brightness - 250 cd/m², Display colors- 16.7 M, Contrast ratio (typical)-1000:1, SmartContrastMega Infinity DCR, Response time (typical)-4 ms (GtG)*, Viewing angle-178º (H) / 178º (V), @ C/R > 10, Maximum resolution-1920 x 1080 @ 75 Hz*, Effective viewing area527 (H) x 296.5 (V), Scanning Frequency-30 -83 kHz (H) / 56 -76 Hz (V), sRGB-Yes, Flicker-free-Yes, Pixel Density-93 PPI, LowBlue Mode-Yes, Display Screen Coating-AntiGlare, 3H, Haze 25%, EasyRead-Yes, Adaptive sync-Yes , Connectivity - Signal InputVGA (Analog ), HDMI (digital, HDCP), Sync Input- Separate Sync, Sync on Green, Audio (In/Out), HDMI audio out, Make- LG / SAMSUNG / BARCO/ equivalent