Guangzhou DSPPA Audio Co., Ltd.

D6701 Series of Infrared Wireless Conference System

D6701 Series of  Infrared Wireless Conference System

System Introduction

D6701 series wireless conference system is a highly confidential infrared conference system. Fully digitally controlled, the system can achieve a variety of functions, with a variety of speech modes, and can be connected with the video host to realize video tracking, sign-in, voting, speech and other functions.

The use of infrared can achieve sound signal transmission, and the system has the characteristic of high sound fidelity, high signal-to-noise ratio, no sound delay and so on. There is no need for cumbersome laying of cables, simply connect and turn on the power to use, and can be moved freely within the signal coverage area.

The system uses a dedicated infrared transceiver device with a strong anti-interference capability. It is connected to the host by network cable and is powered by POE, without an additional power supply.

The conference unit uses a rechargeable lithium battery, which is convenient and environmentally friendly, and can be charged with a charging box or with an adpater.

System Diagram
Infrared Conference System Diagram

Small Conference Room (10 People)

Small Conference Room System:
Conference System + Professional Sound Reinforcement System

Large and Medium-sized Conference Room (20 people)

Infrared Conference System Conference Room Effect Drawing

Infrared Conference System Diagram Highlight Functions

● Conference speech, discussion, sign-in, voting functions
● Use infrared(IR) to achieve sound signal transmission
● High security and confidentiality, anti-eavesdropping, anti-electromagnetic interference of mobile phones
● Anti-howling unidirectional high-sensitivity pickup head, high fidelity, high SNR, low latency
● Self-developed data communication algorithm with a fast response speed, can  connect 1000 conference units
● Multiple conference modes: rotation, restriction, speech control, and multiple chairman modes
● Dedicated infrared transceiver device, strong anti-interference abilitiy, POE power supply
● With sign-in voting function, it can be connected with video host to realize video tracking
● Ultra-low power consumption, rechargeable lithium battery power, 6 hours of continuous speech, and 25 hours of standby time

Product Features

Infrared Conference System Conference System Host

1. A host can support ≤255 voting units and ≤1000 speech units for simultaneous conference.
2. The host can connect up to 5 infrared signal transceivers, including one main transceiver D6704 and four subtransceivers D6705.

● Infrared signal coverage: 10 meters in a straight line
● Large screen LCD display. the graded menu design makes the operation simple and convenient.
● Audio frequency response: 50Hz --- 15KHz
● Total audio gain: ≦20dB
● Signal to noise ratio: >85dB
● Audio Total Harmonic Distortion: ≦0.8%

D6702  Infrared  Chairman Microphone with Voting
D6703  Infrared  Delegate Microphone with Voting

1. The representative unit will automatically shut down after another 60 seconds if the signal has not recovered after 20 seconds of signal abnormalities.
2.  After the microphone is turned on, it can display the strength of the received/transmitted signal. When the reception of the representative unit is blocked, the display will prompt"Signal Abnormal!" and automatically mutes the processing.

● The microphone boom is available with an extended type
● Winding condenser microphone boom
● OLED dot matrix display, battery power, charging status, microphone status, microphone ID number, corresponding operation dynamic button indication
● The representative unit has a speaking button (on/off) and a speaking status indicator
● The microphone mesh head has a light ring, which can display the speech status of the microphone
● The representative unit will automatically shut down after another 60 seconds if the signal has not recovered after 20 seconds of abnormal signal
● It has the priority function of forcibly cutting off the microphone of the non-voting unit.
● The microphone is powered by lithium battery, equipped with a charger

D6702  Infrared  Chairman Microphone with Voting
D6703  Infrared  Delegate Microphone with Voting

Function schematic diagram of the conference unit

1. Light ring: it is always on (red) when the unit is in a speech state.
2. Super-directivity condenser pick-up3. Infrared emission4. Display screen
5. Infrared recieving window6. Monitioring headphone jack7. Mute button
8. Microphone volume up key or upward selection key (VOL+)
9. Microphone volume down key or downward selection key (VOL-)
10. On/off button of microphone speech11. Chairman priority button (delegates unit does not have this button.)
12. Voting button (used for voting function)13. Voting button (used for voting function)
14. Microphone power switch button15. Microphone external power input socket

The conference unit is powered by the lithium battery, and the lithium battery is removable, and it can be charged either with a charging box or with an adapter.

D6704   Main Infrared Signal Transceiver
D6705  Extender Infrared Signal Transceiver

● Adopt embedded installation method, equipped with safety rope, safe and reliable.
● 150 degree spherical transceiver, greatly expanding the signal coverage.
● Signal gain greater than 35dB
● Low power circuit design
● Dedicated infrared transceiver, strong anti-interference ability
● Connect the host by network cable or powered by POE

Installation Attention:
1. Keep away from lighting equipment
● Although the system has strong anti-interference to ambient light, the installation position of the infrared signal transceiver should be kept at least 50cm away from the lighting equipment.
2.Keep away from walls, pillars and other obstacles
● Because obstacles such as walls and pillars can easily block the transmission of infrared signals, the installation position of the infrared signal transceiver should be kept at least 30cm away from the obstacles.
3. The length of the network cable between the host and the main transceiver and each transceiver should be as equal as possible.

D6704   Main Infrared Signal Transceiver
D6705  Extender Infrared Signal Transceiver

Function Schematic diagram of infrared signal transceiver

1. B-line working indicator (green, representing the B-line is connected successfully)
2. A-line working indicator (red, representing the A-line is connected successfully)
3. Infrared signal receiving window
4. Infrared signal transmission window
5. Infrared signal output interface B
6. Infrared signal input interface A
7. Safety rope pendant installation position

D6704   Main Infrared Signal Transceiver
D6705  Extender Infrared Signal Transceiver

Schematic diagram of the signal coverage area of the infrared signal transceiver

The ratio between the coverage area of the infrared signal transceiver and its installation height

H=the height of the infrared signal transceiver to the conference table

D6706   Battery Charging Box

When the conference unit need to be charged, you can use the charging box or use the adapter to charge.
(When using a charging box,  please remove the lithium battery from the conference unit and insert the battery into the charging box for charging.)

● Powered by AC110V~220V switching power supply.
● Can charge 16 lithium polymer batteries at the same time.
● With intelligent charging management circuit, it can effectively protect the battery.
● It has telescopic rods and pulleys for easy movement.

The function schematic diagram of dedicated charging box

1.  Pulley2. Handle
3. Battery charging status indicator4. Battery slot
5. Power indicator6. Power switch 7. Power socket (AC110V-220V~50Hz/60Hz)

Conference Room Configuration Planning

Infrared Conference System

Please refer to the following table and  the infrared wireless conference system host,
conference units and accessories are purchased according to actual needs.

Note: If the user needs to use optional items, please specify it in the order.

Venue work area

The infrared conference system needs to confirm the actual work area of the system, that is, the area where the conference attendance unit works. (In practical applications, it is inevitable that the signal coverage area is smaller than the actual venue area, so it is necessary to determine the actual work area of the conference unit and its location first.
It is recommended that the venue schematization is in accordance with the requirements of the figure below. Please determine the coverage area of a single infrared signal transceiver according to the height of the venue, and calculate the required number of infrared signal transceivers so that the coverage area is sufficient to cover the entire work area.

Calculation Formula:
A: the quantity of  infrared signal transceiverB: Venue work area
C: the coverage area of infrared signal transceiver

Example: XX Conference Room
Venue height: 5.2 meters (the height from the ceiling to the ground )
The height of the conference table from the ground: 0.6 meters
Actual venue area: 25×15=375 m2
Actuall work area: 20×10=200 m2

The quantity of the infrared signal transceiver according to the  calculation formula: 3 PCS

  • Tel:+86 020 37166520
  • Address:No.1 Xiahe Rd, Jianggao Town, Baiyun District, Guangzhou, Guangdong, China
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