DCS-2021 Wired Desktop Basic Discussion System

System Overview



The paperless multimedia function of the 20000 series economical paperless conference system can be realized by adding extended terminals to meet requirements of administrative conferences; this function can be extended as well with a pad or smartphone, which is a most economical paperless conference solution.


Phase-by-phase deployment, making investment flexible

If budget is limited and investment is difficult to realize in a short time, 20000 series can help you upgrade the voting or paperless function anytime.

Just a system to meet different custom requirements of conferences, making conference organization and operation flexible

How to realize a paperless function for the chairman terminal when the delegate terminal does not come out with the voting function? 20000 series allows users to set functions for single terminal, meeting requirements of organizing and operating different kinds of conferences within a site


Up-to-date conference system, making product upgrade flexible

20000 series allows users to upgrade different kinds of functions, including screen size management, attendance registration, voting, multi-screen interaction, conference notification, address navigation, timed notification, conference service, and conference control & management.


Operation interface of paperless conference extended terminal

Besides the adding extended paperless conference function, the DCS-2021 discussion terminal allows the delegate to speak, request to speak, listen to speech, and has automatic camera tracking function. The discussion and interpretation terminal accommodates up to 32-channel; With the USB port, the handheld voting units can be externally connected to extend voting function; Each congress terminal comes with headphone jack and volume control for the delegate to hear the floor audio and any interpreted language channels, and adjust volume level for comfortable listening. 1 to 4 delegate microphones can be activated at the same time. Built-in loudspeaker mutes automatically when the microphone is turned on. Under voice-activated mode, the microphone is automatically turned on when the delegate speaks, and VOX sensitivity can be adjusted, which is userfriendly to ordinary clients and visually impaired clients. All-in-one capacitive touch button design will also improve users’ operation experience.



Guangdong Cable Group

 Southern Media Group

 King Saud Medical Center

Congress Terminal DCS-2021


♦ Extended paperless conference function by adding extended paperless conference terminal
♦ Audio sensitivity can be adjusted individually or centrally
♦ Distributed power and intelligent grouping management
♦ Volume of built-in loudspeaker can be adjusted from 0~8 level
♦ All-in-one touch panel
♦ CD sound quallity
♦ Wired interpretation: 32 channels
♦ Intelligent voice activated
♦ Auto HD or SD camera tracking
♦ Voting function with extended voting keypad
♦ Pluggable microphone stem

Main Functions

DCS-2021C/D Discussion Terminal
◆ Any delegate terminal can be set as vice chairman terminal
◆ Comply with IEC60914 standard, utilize digital audio processing and transmission technology
◆ Support paperless conference by adding extended paperless conference terminal, to meet the future demand
◆ Microphone discussion: push to talk or request to talk. AUTO/FIFO/OPERATOR/VOX modes are available for microphone management. Speech can be heard via headphone or built-in loudspeaker.
◆ Voice-activated microphone mode: the microphone is automatically turned on when a delegate speaks. Sensitivity (H/M/L) and Mic time-out (20-250 seconds)can be adjusted on the congress server. Four delegate microphones can be activated at the same time.
◆ Attendance registration: by key press or supplementary registration.
◆ The handheld voting units can be externally connected with a USB port to extend voting function.
◆ Automatic camera tracking with preset panoramic position. HD camera is supported.
◆ Six kinds of detachable gooseneck microphone stem for convenient maintenance.
◆ Dynamic LCD messages for registration, discussion( such as please register, register done; request to speak, Mic on).

◆ Terminal has audio recording output interface.

The chairman terminal has below functions besides all functions of the delegate terminal.
◆ Chairman terminal can be activated at any time without preseting mic limit.

◆ Chairman priority button to override all active delegate terminals.

Based on the functions of DCS-2021 C/D discussion terminal, DCS-2021 CI/DI also has the below functions:
◆ Simultaneous interpretation: 32 channels wired simultaneous interpretation .
◆ Dynamic display the channel information with LCD.

Technical Specifications

Mounting type


Frequency response


VOX sensitivity

H/M/L (76dB/80dB/82dB)

Power input


Microphone length

Standard 410mm, Optional 310mm/510mm


47mm×18mm, Backlit with white-on-blue

Expansion port


Built-in speaker


Phone jack

3.5mm jack mono


0.9 kg

Dimension( L×W×H)


Working temperature


Storage temperature



Function Indicators

Front side
1. Pluggable MIC gooseneck;
2. PRIO key (red) for the chairman terminal; press this key to turn off all active congress terminals;
3. Speak key;
4. Simultaneous Interpretation channel selection key
5. Built-in 3W/4Ω loudspeaker
6. LCD display
7. Volume knob
8. 1.5m 6P cable with male connector, for connecting with congress server, power hub, or preceding congress terminal;

Congress Server GONSIN20000

GONSIN20000 Congress Server connects up to 45 congress terminals. Power hubs can be used to expand the system. Using one single 6-pin cable, power hubs can be cascaded together with the congress server to set up a large system of up to 4096 terminals. Built-in 8x1 video matrix switcher enables automatic camera tracking with additional dome camera(s) without PC software control. Built-in DSP function can be used to prevent acoustic feedback when necessary. Built-in audio mixer is able to compensate treble and bass for excellent sound quality. VOX H/M/L sensitivity and loudspeaker volume level can be adjusted for all terminals or single terminal. Terminal number writing can be done. Terminal LCD contrast is adjustable. Up to 32 channels are available for simultaneous interpretation. The congress server can communicate with the wireless AP by uploading GONSIN conference APP on pads or smart phones, so to realize the paperless multimedia function for the conference system.

◆ The sensitivity and the audio of microphone can be adjusted individually or centrally
◆ Distributed power and intelligent grouping management
◆ Volume of built-in loudspeaker can be adjusted from 0~8 level
◆ LCD screen to display the system setting status
◆ VOX sensitivity can be easily adjusted
◆ Built-in module for 8×1 video matrix switcher
◆ Extended module for HD camera tracking
◆ Built-in module for treble and bass compensation

Main Functions

Offline functions without PC/software control

◆ Based on digital control framework and high-speed CPU, the system has more stable performance and higher processing speed
◆ In compliance with IEC60914 standard and adoption of digital audio processing and transmission techniques to implement a digitalized server
◆ Developed on Linux-based OS platform, the server has robust stability and thus applies to large-sized convention centers with strict running conditions
◆ Utilized high-class DSP digital audio processor, support 48kHz and 32kHz audio frequency
◆ The server comes with built-in LCD panel and navigation button to display speaking mode, system status, terminal setting and management. Language supports Chinese/English
◆ Built-in 8x1+3 video matrix switcher with preset panoramic position to realize SD camera tracking, support 8*8 HD camera tracking with HD video tracking matrix
◆ Support audio recording, video recording(with a video recording card)
◆ Can be integrated with paperless conference system to realize paperless conference voting, election, voting function
◆ Voice-activated mic mode with adjustable VOX sensitivity and auto mic time-out
◆ H/M/L sensitivity can be adjusted for all terminals or single terminal
◆ Loudspeaker volume level can be adjusted for all terminals or single terminal
◆ Terminal number writing can be done
◆ Terminal LCD screen contrast can be adjusted
◆ Up to 4 delegate microphones can be activated at the same time

◆ Four speaking modes: VOX/Auto/FIFO/Operator

Extented functions with PC/software control

◆ Operator can click terminal icons for terminal management such as allow or reject the delegate to speak
◆ Speaking time limit can be preset to turn off terminal


Technical Specifications

Power input



Dot matrix 128×64, Backlit with white-on-blue

Max system capacity

4096 terminals

VOX sensitivity

H/M/L (76dB/80dB/82dB)

Max power capacity


Max audio output


Frequency response






Dynamic range

>94 dBA


>85 dBA

External audio input

6.5mm jack0.775V

Audio outputs

1x Balanced, 2x Unbalanced

REC OUT audio output

0-2.8V Vpp

A single standard capacity

45 Sets

PC communication

TCP/IP, RS-232

Camera control


Camera number


Active delegate microphone limit


Camera tracking protocol


Video mtrix input

RCA×81Vp-p 75Ω

Video mtrix output

RCA×41Vp-p 75Ω

Operating temperature

-0 - 45

Storage temperature

-20 - 50


Tabletop or 19" rack

Dimentions (W×H×D)




Function indicators


Front side
1. POWER: power switch with indicator;
2. 128*64mm backlight LCD screen (blue with white text);
3. Left and right arrow keys (◀▶);
4. Setting key (SET);
Press this key to enter or exit the menuinterface;
5. Up and down arrow keys (▲▼);
Use the keys indicated by ③④⑤ to set speak mode and number of active MICs, and adjust volume of loudspeaker;
6. Bass knob (BASS);
7. Treble knob (TREBLE);
8. General volume knob (VOL);

Rear side
9. RS-232 COM interface, for connecting to HD video tracking matrix;
10. RS-422 COM interface (RS-422 TO CAMERA), for connecting to dome camera that supports PELCO-P9600/VISCA-9600 or Speed Dome Controller
11. Eight-channel RCA video input connector (VIDEO INPUT);
12. Four-channel RCA video output connector (VIDEO OUTPUT);
13. RJ-45 interface;
14. Four-channel 6P interface with female connector (DELEGATES) for hand-in-hand congress terminals, for connecting to
repeater or congress terminal
15. MIC input interface, for connecting to wireless MICs to realize seamless connection with interpreter console
16. Audio input interface (two-channel non balanced interface), for connecting to external non-balanced audio device;
17. Audio input interface (one-channel balanced interface), for connecting to external balanced audio device;
18. Audio output interface (two-channel non balanced interface), for connecting to power amplifier or mixer;
19. Audio output interface (one-channel balanced interface), for connecting to power amplifier or mixer;
20. Power interface (AC 100-220V 50Hz).

Extended Terminal of Paperless Conference GX-PET201/156/185


♦ The chairman extended terminal allow users to initiate registration, voting, appraisal, and scoring

♦ Conference results can be displayed on screens of extended terminals

♦ Simultaneous Interpretation channel is selectable and language type of each channel is shown

♦ Provide calling service function

♦ Provide E-document management function

♦ Speak mode is configurable


Main Functions

♦ Extended terminals of a paperless conference consist of a chairman terminal and delegate terminals

♦ Attendance registration: attendance registration is initiated and ended by the chairman terminal. Registration results are shown on screens of the delegate terminals

♦ Voting function: voting is initiated and ended by the chairman terminal. Voting results are shown on screens of the delegate terminals. In voting mode, both the first key pressing and last key pressing are valid

♦ Appraisal function: appraisal is initiated and ended by the chairman terminal. Appraisal results are shown on screens of the delegate terminals

♦ Scoring function: scoring is initiated and score is received by the chairman terminal. Scores (0~100) are entered through the keyboard and averaged by system. Scoring results are shown on screens of the delegate terminals

♦The chairman terminal allows users to initiate quick voting/election/appraisal/scoring

♦  Discussion setting: the chairman terminal allows users to set speak mode, active MICs, and other parameters for the discussion system

♦ Simultaneous Interpretation channel selection: the extended terminals allow users to select simultaneous interpretation channels and display language and other information of corresponding channel

♦ Call service: participants place a call via an extended terminal. Basic functions: paper, pen, tea, towel and etc, the function can be customized.

♦ Digital conference files management: it includes browsing files and sharing screen
* Browsing congress files: before the congress, the digital files could be preset on the extended terminal, the user could open and browse the files; it supports PDF, WORD,PPT and other presentation files, video, photo and other multimedia files;
* Sharing screen: when the chairman extended terminal is browsing the files in the congress server, it can share the screen and all delegate extended terminals could display the same content of the chairman extended terminal, including page scroll, paging, comments and others steps.
♦ System capacity: One wireless AP could support 40 extended terminal, by adding wireless AP, it could increase the system capacity; the system capacity is unlimited, the actual number is decided by the wireless environment in the congress


Paperless Call Service Terminal GX-PST201

♦  Offer call service function
♦  Assist the servant to receive the request from the congress participants 

Basic function 
♦  Call service: The participant could use the extended terminal to call service, the request could be displayed on the paperless call service terminal in time. The service would be provided as the participant required. The basic service includes: paper, pen, tea, towel and so on. It could be customized according to the congress 

Paperless System Management Terminal GX-PMT201

♦  Offer system management function 
♦  Equipped with all setting function of the congress server 

Basic functions: 
♦ After connected to the system, it has all the setting function of the congress server ( GONSIN20000), including the speaking modes of the system, speaking numbers, the adjustment of the system volume and tone, terminal numbering, the contrast setting 

♦ Setting the congress topic and the congress participant and other relevant information 

The hardware technical specification of the extended terminal 

Notice: The terminal hardware is applied to the paperless conference extended terminal, paperless service terminal, paperless system management terminal. 

GX-PET201 Paperless conference extended terminal
GX-PST201 The paperless call service terminal
GX-PMT 201 Paperless system management terminal


Operation system

Android 4.3

Screen size

9.6 inches 

Screen resolution


Screen ratio


Screen type

IPS capacitive touch screen, support five-points touch

Battery service time

≥16 hours 

Charging method

independent adapter 

System capacitive

One wireless AP(WAP-10B) could support 35 seats, by adding wireless AP, the system could extend its capacity. 

Dimension( W×H×D)

48.5mm×150mm×8.3mm9.6 inches

Net weight

430g( 9.6 inches) 




Panel material

High-class aluminium alloy

Panel Craft

Oxidized wiredrawing processing surface



Power consumption

<15VA/each terminal( exclude the screen)

Lifting time


Lifting accurcy

Horizontal ±0.2mm,


Environment condition

Temperature 5-45

Elevation angle

Largest: 0° 55°(standard: 0° 20°)

External panel dimension

488×88×5 mm ( L*W*D)

Internal panel dimension

401×34 mm(L*W)

Box dimension

476×75×605 mm (L*W*H)


15kg(inclued the screen)

Screen ratio


Screen resolution






Viewing angle

45/45/15/35 (left/right/up/down)


600 1Typ.

LVDS signal cable

VGA driver board

Video interface

Standard VGA Interface( Optional HDMIDVI

Frame material

Aluminium alloy/IPS full-view HD IPS)

Screen Dimension

378×237×8.8 mm(l*w*t)

Touch Control

Transmission-type capacitive screen, support 10 points touch control


High-class control chip

PC connect


Touch screen transparency


Surface Hardness




Drive Mode


Response time


Reading rate

10PT: 80Hz


Contact discharge 4KV

Highest working frequency

100 MHz

Touch screen service time


Working Temperature

-30 +75 


90% at 60

Conference PC


Intel I5



Hard Disk

Standard 32G solid state drive


12V 3A

Power Comsumption


PC system

Windows7 Operation System

Signal Interface

HDMI Interface

Data interface

Two USB interfaces in front

Four USB interfaces in back

External Interface


DCIN AC power input interface MICAUDIO;

Internet Interface


System control

Power swtich button


Power Indiciator


193*176*30mm (L*W*H)



Working Temperature


Storage Temperature


WAP-10B Wireless AP

♦ Support 2.4G/5.2G/5.8G triple-band wireless communication;
♦ Built-in high gain antenna, strong signal, stable communication;
♦ Co-operate with multiple systems without any interference;
♦ Elegant industry design, harmony with conference venues.

♦ Power adjustment, power can be adjusted according to the size of conference venue;
♦ Support multiple AP cascading to extend the system, easy to build up a large-scale conference system;
♦ Frequency band navigation, lead terminals to be connected to the best frequency band;
♦ Support POE power supply, less cabling, easy to install;
♦ Support ceiling/wall-mounting/desktop installation, flexible for various conference installation environment;

Technical Specifications

Max.transmission rate


Frequency range



1*RJ45 interface to connect the server or switcher( for multiple APs)
1*RJ45 Interface for Console maintenance

One AP capacity

One DC power interface to connect 48V external power 35 terminals


210 mm×210 mm×44mm (L*W*H)



Working temperature


Storage temperature


Signal coverage

30m (stable communication distance)


DC48VPoE power supply(802.3at802.3af)

Data Server GX-DS201


♦ To upload, invoke, store the congress files ant other file management

Basic function

♦ Congress files storage

♦ The congress file format supports DOC,PDF,PPT and other general document format

♦ By logging in WEB, to upload and manage congress files


Technical Specifications


RTW-5320ALNutilize Intel B75 chipset


Intel i3-3220 CPU @3.30GHz



Hard disk (SATA)



VGA interface( external)

Mouse/keyboard interface

Audio interface

VI interface

Two serial ports

Four USB ports


10/100/1000Mbps, Ethernet portleft setting effective

Extended interface




Operation system

WIN7 system



Working temperature


Storage temperature



2Urack mounting

Power HUB HUB-150


◆ Designed to meet the power requirement for larger congress system.

◆ Automatically checking voltage/current/temperature

Main Functions

◆ Each power hub can supply power to 20 congress terminals

◆ Voltage/current detection: in case of over-voltage and over-current, power is turned off immediately and alarm is sent to the server.

◆ Temperature check: in case of abnormal temperature, power is turned off immediately and alarm is sent to the server.

Technical Specifications

Single hub capacity

Up to 20 congress terminals

Power supply


Maximum power






Operating temperature


Storage temperature



Function indicators

1. Power interface
2. 6P female connector interface (ROUTE OUT), for connecting to congress terminal or power HUB;
3. 6P female connector interface (TERMINNAL), for connecting to next power HUB;
4. Power on/off indicator;
5. Fault indicator;
6. 6P male connector interface (ROUTE IN), for connecting to congress server or preceding power HUB.

Extended Handheld Voting Terminal DCS-K2021

Basic Functions

◆ Connect the voting terminal to a DCS-2021 congress terminal via a USB interface to expand the voting, election, evaluation function of the system. Plug-and-play installation
◆ Registration: Key-pressing registration with LED indicator to show the registration status
◆ Voting: delegates could vote for “Yes” “ No” or “ Abst”, PC could automatically count and display the result;
*General voting and direct voting
*Single Voting and multiple voting
*First key-pressing or the final key-pressing is valid

◆ Election: elect one and more candidates from multiple candidates, with “single-candidate election” , “multi-candidate election” “ quick election” functions;

◆ Evaluation: 4 keys to evaluate. The user can vote “ satisfaction” “ quite satisfaction” “ no satisfaction” “ abstain”;

◆ LED light to indicate the status of voting, election, evaluation;

◆ Elegant and stylish design
◆ LED indicator for voting
◆ Water-proof and dust-proof design
◆ Extended handheld voting keypad by USB port
◆ Specifical circuit design, anti-static 30000V

Technical Specifications



Extension interface


Dimension( L ×W×H)




Working temperature


Storage temperature



Function Indicators

1. Bi-color LED indicator light (green and red)
2. Attendance registration/ Yes/ very satisfied / candidate 1 and the corresponding blue LED indicator light
a. When the system is in the registration model, press the key for registration;
b. When the system is in the voting model, press the key to vote “ Yes”;
c. When the system is in the evaluation model, press the key to vote” very satisfied”
d. When the system is in the election model, press the key to elect candidate 1;
3. Attendance registration/ Abstain/ very satisfied / candidate
2 and the corresponding blue LED indicator light;
a. The delegate who registered, presses the key to vote “ Abst”;
b. When the system is in the evaluation model, press the key to vote “ satisfied”;
c, When the system is in the election model, press the key to elect the candidate 2;
4. No/ quite satisfied/ candidate 3 and corresponding blue LED indicator light;
a. When the system is in the voting model, press the key to vote “ No”;
b. When the system is in the evaluation model, press the key to vote” quite satisfied”;
c. When the system is in the election model, press the key elect the candidate 3;
5, Dissatisfied/ candidate 4 and corresponding blue LED light;
a. When the system is in the election model, press the key to elect candidate 4;
b. When the system is in the evaluation model, press the key to vote “ dissatisfied”;
6. Candidate 5 and the corresponding blue LED light.
Notice: “1” “2” “3” “4” “5” these five keys could realize the grading and other function by the customization of the software.

Interpreter Terminal Gonsin IC-2016/2032


◆ Accommodates up to 16/32 ch interpretation
◆ Single language can be connected with up to 6 interpretation terminals at the same time
◆ LCD shows channel numbers and operating information
◆ Offers direct interpretation and relay interpretation
◆ Supports dual microphone inputs
◆ Microphone is selectable
◆ A/B/C incoming channels can be pre-selected.
◆ A/B outgoing channels can be pre-selected.
◆ Interpretation operating time display
◆ Reminder for speaking slowly
◆ MUTE key for cough cut
◆ Support interpreter booth function

Main Functions

◆ Pluggable microphone stem
◆ Built-in loudspeaker, adjustable volume
◆ Direct interpretation or indirect interpretation
◆ By the software setting, one language could be directly connected to 6 interpreter consoles, when the interpreter turns on the microphone, the system would automatically turn off the microphone of the last interpreter console
◆ A,B,C, three preset input channel, when presetting, A,B,C input channels would be switched quickly
◆ A, B input channels presetting. When presetting the input channel, the occupied channel will be automatically skipped. It is quick to swith A/B input channel which works in both interlocking mode( interlock between interpreter consoles) and free mode.
◆ Channel selection key “<”“>” , press the key for a long while to increase or reduce the channels quickly, press the key for a short while to increase or reduce one channel;
◆ When all microphones close, it would be automatically change to the floor audio channel;
◆ The floor audio input key ( FLOOR), the corresponding indicator light is on when the floor audio input is on; Press A, B, or C, the RELAY indicator is on, indicating relay interpretation. Input channels for relay interpretation are A, B, and C.
◆ MUTE key to temporarily mute unwanted noise.
◆ SLOW key to remind the speaker to slow down; the active mic ring or LCD will blink.
◆ Left/Right REC OUT jack for interpreted audio recording
◆ Left/Right MIC jack for headset boom microphone
◆ Left/Right headphone jack for headphone monitoring
◆ Interpretation operating time display: hour: minute
◆ Interpreter units can be cascaded up to 15 units to support 1+15 channels;
◆ Interpreter terminals can be cascaded up to 186 units at most in one system (31 language channels*6sets/channel, the power HUB is necessary), to achieve 31+1 channels simultaneous interpretation
◆ Interpreter terminal comes with audio recording output

Technical Specifications

Language channels


Operating voltage

36V, Powered by congress server


65mm x 32mm, Dot matrix 128×64, Backlit with white-on-bl

Microphone pick-up range


Microphone length

410 mm standard

Audio input/output

3.5mm jack, MIC×2, REC×2,

Headphone jack

3.5mm jack mono

Operating temperature

0°C to 45°C

Storage temperature

-20 to 50

Dimensions (W×D×H)

247×145×95mm (excluding mic stem)


1.2 kg(net weight)


Function indicators

Listening area
Loudspeaker/headphone control:
1. Embedded 8Ω/2W loudspeaker
2. Volume adjustment knob

Input channel setting area
3. Audio input channel A
4. Audio input channel B
5. Audio input channel C
6. Input & output channel presetting key, for selecting leftward
7. Input & output channel presetting key, for selecting rightward
8. The floor audio input key, (Floor)
9. Output channel A confirmation key;
10, Output channel B confirmation key;
11, MIC ON/OFF key
12. Headset input key: this key is available only when the MIC is turned on. If the LEFT indicator is on, use the left MIC interface (18 in Figure b) to input voice; if the RIGHT indicator is on, use the right MIC interface (18 in Figure b) to input voice.
13. MUTE key
14. SLOW key: press this key to request the speaker to slow down. The conference unit of the speaker will have its MIC indicator or LCD display to flash, reminding the speaker to slow down. This function is available only when GONSIN fully digital conference system is used.

Display function area

15. A highly bright LCD display (dimensions: 128×64) for interpreters to set parameters

Interface area
16. MIC gooseneck interface
17. Left/right headphone output interface, used for connecting to a headphone to listen to a speaker
18. Left/right MIC output interface, used for connecting to a headset
19. Left/right record output interface; input content: interpretation
20. Input interface (IN): This interface is used to connect the first interpreter console to the central control unit and cascade
interpreter consoles
21. Output interface (OUT): This interface is used to cascade interpreter consoles
22. Volume adjustment: L indicates low; M indicates medium; and H indicates High. Generally, the volume is set to L or M. It can be used in conjunction with the volume adjustment knob on the simultaneous central control unit to adjust to a required volume