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WDC-903 digital wireless conference discussion system, with professional appearance design, perfect circuit composition and stable functional characteristics, can be cooperated with VTS-2000 automatic video tracking system and central control system to achieve functional diversification of modern high-tech conference. The data instruction of this wireless conference discussion system is transmitted by LoRa protocol. Audio works in UHF band. High fidelity circuit design can produce high quality sound effect. The system has anti-interference protection, which can effectively block the influence of computers, mobile phones and Bluetooth wireless devices in the environment. It is fully applicable to local government departments, business conference rooms, business venues and international conference centers.
Practical function
· Adopt LoRa 433Mhz wireless control signal and UHF audio transmission technology.
· The system automatically searches interference-free channels and replaces them.
· Control up to 255 Wireless Discussion units, up to 5 wireless units can speak at the same time.
· With Dante interface, it can communicate with any device with Dante to transmit audio.
· Bright OLED operation screen, with Chinese and English language menu selection, perfect function, easy operation.
· Super anti-interference function can effectively block the impact of computer devices, mobile phones and Bluetooth devices in the environment.
· The conference unit can automatically select or manually start the power supply. When it chooses to turn on automatically, the central controller will send the instruction to the conference unit at the same time, which automatically turns on the power supply and works in the mode after receiving the instruction.
Flexible Speech
Four conference modes:
①Time-limited Mode
②First in First out Mode
③Application Mode
④Voice-activated Mode
Expansibility
· With antenna interface, it can be used in conjunction with the antenna system of Relacart, and the transmission signal is very strong.
· Any number of wireless conference systems can be installed in the same building.
· With VTS-2000 automatic video tracking system, can achieve conference video tracking function.
· Equipped with RS-232 interface, it can connect various central control devices.
Easy installation
· The unique advantages of simple installation, easy and fast, and no impact on the installation site, especially for the installation or layout of historical museums, ancient buildings and other historical and cultural buildings, users need not worry about damage to ancient buildings, because they do not need wiring, nor drilling holes, providing a professional perfect solution for harsh and complex application occasions.
Main Controller Specification
WDC-903 Main Controller
Basic functions of the Main Controller:
•Adopt LoRa 433Mhz wireless control signal and UHF audio transmission technology.
•The system automatically searches interference-free channels and replaces them.
•Control up to 100 Wireless Discussion units, 2 chairman units and up to 5 wireless units to speak at the same time.
•With Dante interface, it can communicate with any device with Dante to transmit audio.
•Four conference modes, first in first out, limited time speech, application speech and voice-activated speech, are available to meet different conference needs.
•Bright OLED operation screen, with Chinese and English language menu selection, perfect function, easy operation.
•Super anti-interference function can effectively block the impact of computer devices, mobile phones and Bluetooth devices in the environment.
•With antenna interface, it can be used in conjunction with the antenna system of Relacart, and the transmission signal is very strong.
•Any number of wireless conference systems can be installed in the same building.
•19-inch (1U) body for desktop or rack mounting.
•A temporary system can be easily built, beautiful and tidy, without any impact on the installation site.
•With VTS-2000 automatic video tracking system, can achieve conference video tracking function.
•Equipped with RS-232 interface, it can connect various central control devices.
| Main Frame Size | １Ｕ |
| Receiving Channel | Six Channels |
| Frequency Reliability | ±0.005% |
| Carrier Frequency Range | UHF 522MHz-936MHz |
| Sampling Rate | 48KHz /24bit |
| Modulation | FM |
| Operating Distance | 80M (in open space) |
| Oscillation | PLL synthesized |
| Bandwidth | 32MHz |
| Max. Deviation | ±45KHz |
| S/N | >100dB |
| THD | <0.5%@1KHz |
| Frequency Response | 50Hz-18KHz |
| Output | Balanced XLR-M, 2 RCA |
| Power Supply | AC110-240V 50/60Hz |
| Weight | Approximately 3.2 kg |
| Dimension(mm) | 480(L)X43(H)X350(D) |
Conference Delegate Specification
WDC-903C Chairman Unit WDC-903D Delegate Unit
Basic functions of the Conference Delegate:
•It is powered by detachable lithium battery, charged by WDC-903 special charging box, or charged directly by USB interface of conference unit.
•It can work continuously for 16 hours and stand by for up to 24 hours at full power.
•Bright OLED display can display battery capacity, speech mode, time limit and other working conditions at the same time.
•Super anti-interference ability of mobile phone.
• With a halo-type work indicator.
•Use high-quality capacitive condenser microphone head to achieve high-quality sound pickup.
•Wireless conference technology can easily build a temporary system, beautiful and neat, without any impact on the installation site.
| Carrier Frequency Range | 522MHz-936MHz |
| Oscillation | PLL synthesized |
| Harmonic Radiation | <45dBm |
| Bandwidth | 134MHz |
| Max. Deviation | ±45KHz |
| Input Jack | 3-pin XLR jack |
| RF Output Power: | 15mW |
| Power Supply | Li-ion polymer rechargeable battery 3.7V/2900mA |
| Current Consumption | 120 mA (Typical) 60mA (Standby) |
| Working Hour: | 23 Hour(Classical) 48 Hour(Standby) |
| Weight | 910g |
| Dimension(mm) | 162(L)X125(W)X54(H) |
DC-903 data communication converter
| Working Frequency Range： | 400～450MHz |
| Gain | 16dBm |
| RF input Port | N female |
| Data Communication Bidirectional Connection Port | RJ45 connector |
| Power | The integrated power supply mode of data line and power line |
| Working Temperature | -10℃~55℃ |
| Dimension(mm) | 42(W)×42(D)×105(H) |
| Weight | 150g |
VTS-2000 Automatic Video Tracking System
VTS-2000 Video Tracking System can be used in conjunction with any conference system with video function of Relacart to realize video viewing tracking function. When the speaker unit opens the microphone, the camera will automatically track the speaker's position, and connect the video display device to display the image. Unique picture static function, can achieve perfect automatic tracking image function.
| Equipment Type | HD Video Main Controller |
| Working Power | AC 100~240V, 50/60Hz |
| FrequencyResponse | 143Mb/s to 2.97Gb/s |
| Gain | 0dB |
| Signal Type |
SDI(HD digital signal) HD cctv1.0 HD-SDI(ST292)、3G-SDI(ST424)、SD-SDI(259) |
| Input Return Loss | 21dB@5MHz-3GHz |
| Video Input | 800mVp-p |
| Video Output | 800mVp-p |
| Compatible Standard | Pelco-D、pelco-P、Visca |
| Control Protocol | RS-232、RS-422、RS-485 |
| Baud Rate | 9600 |
| Data Bits | 8 Bits |
| Video Input/Output Impedance | 75Ω |
| Input/Output Port | BNC |
| Dimension(mm) | 410(W)*43(H)*206(D) |
| Weight | Approximately2.3 kg |
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