The Conference mainframe: V500

The system mainframe develops and designs with the combination of digit circuit and artificial circuit; the 2U case has a menu with LCD (flexible choice of both English and Chinese display), which is more direct and humanized.

The chairman unit: V500C

This base of the unit is made with zinc-hafnium alloy. The whole craft is neat and professional. Thedesign of base andmicrophone tube adopts separable type. The audio beam condenser microphone is used to realize picking up of the high-quality voice. The chairman unit JM-621 has the priority of voicing. When the mainframe is set in the automatic mode, the microphone will work automatically once you speak; the microphone has a red-halo indicator.

The representative unit: V500D

This base of the unit is made with zinc-hafnium alloy. The whole craft is neat and professional. Thedesign of base andmicrophone tube adopts separable type. The audio beam condenser microphone is used to realize picking up of the high-quality voice. When the mainframe is set in the automatic mode, the microphone will work automatically once you speak; the microphone has a red-halo indicator.

Conference camera: DS770

Specification parameter

The Conference mainframe: V500

This system has a set of image tracking functions which are very convenient, such as video tracking and squeal restricting; the system unit can check automatically, and the voicing mode set is created, such as FIFO mode, FILO mode, voice restrict mode, automatic mode, and voice application mode. Coordinated with a video switcher, the system can connect 6 cameras and can accept camera protocols of PALCO, P/D, SONY, and SAMSUNG, as well as customize various brands 'camera protocols. In addition, there is auxiliary input of voice frequency. Four ways of output, each to 24 units, can connect at most 96 units. The mainframe can sustain one chairman unit, with RS-232C output port that can connect with the center control.

The chairman unit: V500C/ the representative unit: V500D

Frequency response: 100-10KHz

Sensitivity: －50dB/Pa

SNR: 70dB

Conference camera: DS770

Imaging device: SONY 1/4 inch CCD

Effective pixels: 752(horizontal) × 582(vertical), signal system: PAL/NTSC;

Horizontal resolution: 550 wire, synchronizing system: internal/external;

Shot: 8x zoom, F=4.1mm(wide) to 73.8mm(TV), F1.4 to F3.0;

Horizontal view angle: 48 degree (wide-angle end) to 2.8 degree (far end)