SDC-TR01 Control Keyboard User Manual
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4.2 Connection Analysis
4.2.1 Connection between keyboard and camera
With RS422 bus connection way, the keyboard third pin (Ra) is connected with the
camera third pin TXD IN-, the keyboard fourth pin (Rb) with the camera fourth pin TXD IN+,
the keyboard first pin (Ta) with the camera first pin RXD IN-, the keyboard second pin (Tb)
with the camera second pin RXD IN +.
Keyboard CAMERA
Ra<········>TXD IN-
Rb<········>TXD IN+
Ta<········>RXD IN-
Tb<········>RXD IN+
With RS232 connection way, the keyboard (10pin connecting terminal) first pin RXD is
connected with the third pin TXD of camera RS232 port, the keyboard second pin TXD
with the camera fifth RXD, the keyboard third GND with the camera forth pin GND. (It is
also available to connect camera with the standard RS232 port on the keyboard.)
Keyboard CAMERA
RXD<········>TXD
TXD<········>RXD
GND<········>RXD
The camera can be controlled by any connection way mentioned above.
4.2.2 Connection between cameras
With the RS422 bus cascade connection, the output of camera 1 is connected with the
input of camera 2, and the output of camera 2 is connected with the input of camera 3,
and so on so forth. As shown below:
