9
The keyboard is wired directly to a maximum of 255 receivers, dome cameras. You can
communicate using D-MAX Protocol. It has an exclusive RS-485/RS-422 chip set into the
keyboard to communicate. There is power supply terminal to use keyboard in rear
junction box. The power supply is for 12 VDC included package.
INPUT/OUTPUT TERMINAL OF DATA JUNCTION BOX
Camera controls 1
The keyboard can be installed, using either RS-485 or RS-422 communication.
When you communicate with RS-485, convert the 422/485 switch on the left side
and when you communicate withRS-422, convert the 422/485-switch on the left
side. Connect end of RS485+ data cable from camera to terminal of data(+) and
end of RS485- data cable from camera to terminal of data(-) on the junction box.
It is input and output terminals.
Camera controls 2
Same as camera control 1.
Sub keyboard
Sub keyboard must be used only with sub keyboard and linked with same line.
It can be used up to 8-sub keyboard with one of main keyboard. For
communicating with RS-485, the 422/485 switch on the right side of junction box
must be converted to 485. For communicating with RS-422, the 422/485 switch
on the right side of junction box must be converted to 422.
485+
485- NC NC 485+ 485- N C N C 485+ 485- N C N C
RX
RTS
RX
RTS
접지
422
OUT+
422
OUT-
422
IN+
422
IN-
GND
422
OUT+
422
OUT-
422
IN+
422
IN-
GND
422
OUT+
422
OUT-
422
IN+
422
IN-
GND
CAMERA CONTROL 1 CAMERA CONTROL 2 SUB KEYBOARD
