Features
- A conference-speaking unit that combines the speaking and voting functions into one.
- Comes with a 2-meter dedicated high-density cable and an RJ45 universal network plug.
- The elector core type pointing capacitive pickup with a two-color indicator (red/green). It is red when speaking, and it is green when applying for speaking.
- There is a square, ova-land, goose-neck rod; The square rod is aluminum alloy with186mm in length, the oval microphone rod is 182mm in length, and the goose-neck rod has a black and silver color, with 315mm, and 415mm in length.
- The microphone rod can be dismounted during the adjournment for maintenance and storage.
- Features an internal magnetic high-fidelity speaker that automatically mutes the sound when the microphone is turned on, making it difficult to howl.
- The 3.5mm stereo headphone jack connects to the headset and the headset volume is adjustable.
- Super anti-interference ability toward mobile phones.
- Equipped with a microphone switch key, and 5 voting keys and chairman unit has chairman priority keys.
- With sign-in function by pressing the button.
- Each Conference unit has a unique ID number.
- High-brightness 2.4″ LCD screen, real-time display when the unit is working:
- The ID number of the conference unit, the number of applicants, the voting results, the number of people checking in, and various operational information;
- Chinese Simplified and English bilingual display unit information.
- Together with the camera, the camera can be automatically tracked when set up using the digital Conference system host or PC control software.
- In conjunction with the control panel, the unit has a self-detection function. The items tested are Keys, microphone, LED indicators, LCD screen, and internal speaker.
- The unit is a passive device that is powered by the system host or POE switch, and the input voltage is +48V.
- When the microphone is turned on, the local speaker automatically switches off to prevent sound playback.
- The microphone is switched on with a tone that sets the switch status.
- The chairman unit has a priority function (all delegate units can be muted or turned off), and a lectern mode (the chairman unit is always on) with the host settings.
- The Chair module has the function of approving a delegate’s request to speak.
- The chairman unit can be opened freely without being restricted by the number of speakers.
- The Chairman Unit has the priority function of having full control of the order of the Conferences.
- The Chairman Unit is connected in an unrestricted location.
Specifications
| Model | D7122 | |
| Structure Type | Desktop | |
| Effective Frequency Range of Gain Limit (±3dB) | MIC A to MIC B | 50Hz-14kHz |
| Host LINE to MIC | 30Hz-18kHz | |
| MIC to Host LINE | 40Hz-16kHz | |
| Speaker Power | 1.5W | |
| Static Power Consumption | <6W | |
| Maximum Power Consumption | 8W | |
| SNR | >75dB | |
| Crosstalk Attenuation | >80dB | |
| Harmonic Distortion | <0.5% | |
| Headset Output | 9dBu, 8-32Ω, 3.5mm | |
| Working Power | Host +48V power supply or +48VPoE Switch power supply | |
| Unit Interface | Network interface | |
| MIC | Microphone Type | Electret cardioid condenser |
| Sensitivity | -30dBV/pa | |
| Input Impedance | 2kΩ | |
| Equivalent Noise | 20dB(SPL) | |
| MAX. SPL. | 125dB(THD<3%) | |
| Package Dimensions | 485×280×120mm(2 PCS/Per Carton) | |
| Machine Dimensions | 175×133×46mm | |
| Gross Weight | 2.4 kg | |
| Net Weight | 0.62 kg | |



