Instruction manual

12
4) Camera control interface
Item Specification
Asynchronous serial interface
1 Start bit
8 Data bit
No Parity
1 Stop bit
Synchronization system & word lenght
11 Byte command
Signal polarity Mark logic “1”
Space logic “0”
Transmit direction Half duplex
Transmit speed 9600 BPS
Hardware 3 cable (twist+ground)
5) Constitution of Junction box pin
Item Input/Output
Camera Ö Junction box Ö Sub key
RS-485+ Camera data +
RS-485- Camera data -
RS-422 In+
RS-422 In-
Camera control 1
GND
RS-485+ Camera data +
RS-485- Camera data -
RS-422 In+
RS-422 In-
Camera control 2
GND
RS-485+ RS-485+
RS-485- RS-485-
RS-422 In+ RS-422 In+
RS-422 In- RS-422 In-
Sub keyboard
GND
SK RTS
RX RTS
GND
• Camera control 1 and 2 compose each separate drive circuit internally
6) Constitution of pin between controller and Junction box
(modular jack)
Pin No. Controller ÖÖ Junction box
1 RX-TXD
2 B +9V
3 RX-RXD
4 RX-RS
5 GND
6 SK-TXD
7 SK-RS
8 SK-RXD