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DCN - DDB is a printed circuit board, it can be with a variety of digital devices (such as display hall, recording system and the camera controller) used to provide the data to a new generation of DCN communication link. Transparent data transmission can be performed between the data communication boards in the new DCN system, such as remote projector, lighting, shading, projection screen, etc. It is suitable for installation in an external device and contains an RS232 communication port with a baud rate of 9600 or 1200 (selected by on-board DIP switches). The optocoupler isolates it from the new DCN system. It can be powered by a new generation of DCN systems or by external power sources. Its other function is to control the indicator light to display the translator's request for slow speech and help. When the interpreter presses the speak slow or help button, the system activates another DDB output control that controls the light at the position of the chairman or operator. Basic function control and indicator light ? initial button interconnect component with LED indicator ? 2-meter (78.7 inch) cable, six-pin circular connector with die on end ? multi-pin PCB connector for: - external initialization button and LED lights - 8 bits parallel data input and output, nine mini type D for RS232 output electric external power supply socket specification 7.5-35 VDC mechanical size (100 x 200 mm x width) (3.93 x 7.87 inches) order information DCN ? DDB data distribution board is used to provide point to LED display data communication link of a new generation of DCN system data distribution board. Order number DCN - DDB