The central control unit (CCU) has the following functions: controlling the wired and wireless microphone, distributing simultaneous interpretation and voting sessions without operator's intervention. When used with PC, this control unit can provide more perfect meeting control function. Users can access a large number of software modules, each with specific meeting control and monitoring functions. These modules greatly improve the meeting management ability. In the event of a PC failure, the controller will switch to a separate operating mode, enabling the meeting to continue. Basic function, apply to a new generation of DCN DCN wireless system or a combination of both (each system up to a DCN ‑ WAP), basic microphone management function, four microphone working mode: - open: microphone button control the request (automatic) - coverage: microphone button cover has open microphone (FIFO) - voice: Voice activation - press the phone talk, hold down the button to speak), open the phone number for 1 to 4, through the display screen and a single spin/button to CCU and system configuration, used for basic voting control congress voting procedure. Representatives may register "out", "in favour", "against" and "abstention". The Concentus presidential plane can start, stop and suspend voting. The voting results can be displayed on the display screen in the hall and the LCD screen of the representative machine. Through prompt, chairman tip is about to begin a new round of a vote, simultaneous interpretation, with 31 language channel and one hall language channel, device allocated to the DCN wireless meeting up to 10 channels and 1 will be a language to Integrus receiver, DCN cable channel, channel selector assign as many as 31 language and language channel 1 hall, intercom basic functions, Can be talk with operators and chairman can be through an interpreter (call), independent automatic camera control, the use of PC control software or increase the conference control, remote control, which can adjust the audio input sensitivity, which can adjust the audio output level, insert audio functions, used to connect to external audio processing equipment or phone coupler, installation personnel to CCU assign a unique name to identify, through the VU meter reading to monitor audio input and audio output. Can make use headphones to monitor audio, applicable to the desktop or 19-inch rack-mount chassis (2 u), portable controls and the handle of the front light, power switch, 2 x 16 characters LCD display screen, used to display state and configuration, knobs, used to browse on the back of the LCD menu, three red leds overload indicator, used to indicate a DCN network overload output, two red LED indicator, used to indicate a fiber optic network connection, green and yellow LED lights, Used to indicate the Ethernet activity in front of the interconnection, a 3.5 mm (0.14 inch) stereo headphone jack on the back, built-in fuse European power socket, three DCN power socket, including locking facilities for connection device, two optical fiber network connection, used to connect Integrus, all kinds of audio expander, CobraNet interface and wireless access points, two 3 needle XLR balanced audio line input, With current isolation function, insert two stereo lotus unbalanced input audio line, two 3 needle XLR balanced audio circuit output, with current isolation function, insert two stereo lotus unbalanced output audio line, an Ethernet connection, is used to control the PC, open interfaces or affiliate CCU, a RS ‑ 232 serial data connector, is used to control the camera, an error switch, Used to trigger the external devices detected in CCU mistake isolated current cross switch certificate and approval certification European CE attachment component number 1 DCN - CCU2 central control unit used for 19 inch rack installation support suite 1 leg suite 1 system installation and user instructions DVD 1 American power cord 1 European power cord specification electrical supply voltage 100 ‑ 240 Vac 50 DCN ‑ 60 Hz power 360 W system 40 Vdc power supply, Each optical network DCN jack up to 85 W power supply 40 Vdc, the highest total power of 65 W, 320 W RS ‑ 232 connected to a nine Sub ‑ D socket 30 Hz - 20 kHz frequency response (- 3 dB, the rated electric flat) rated electricity at ordinary times of THD < 0.5% crosstalk attenuation > 85 dB, 1 kHz dynamic range > 90 dB SNR > 87 dBA audio input XLR input rating - 12 dBV (+ / - 6 dB) plug XLR input + 12 dBV lotus largest rated input - 24 dBV (+ / - 6 dB) lotus plug XLR input + 0 dBV audio output biggest rated output - 12 dBV (+ 6 / - 24 dB) XLR output + 12 dBV lotus largest plug rated output - 24 dBV (+ / 6 Lotus - 24 dB) inserted maximum output + 0 dBV machinery installation installed desktop or in the 19 inch rack size (high) x width x thick desktop installation, that contains a 92 x 440 x 400 mm (3.6 x 17.3 x 15.7 inches) 19 inch rack installation, Containing stents, 88 x 483 x 400 mm (3.5 x 19 x 15.7 inches) behind stents 40 mm (1.6 inch) in front of the 360 mm (14.2 inch) weight 7.9 kg (17.5 lb) color carbon black (PH 10736) and silver order information DCN ‑ CCU2 central control unit is used to control the on behalf of the receiver, distribution, simultaneous interpretation and to carry out the voting process of a new generation of DCN system the central control unit. Order number DCN - CCU2