User`s manual

97
13. KEYBOARD CONTROLLER
13.1 Connection
y User may connect cameras and Keyboard through DVR in various ways.
y Below shows the major probable connection methods through RS-485;
13.1.1 Configuration Diagram I
y Single system configuration (1 Camera, 1 DVR)
13.1.2 Configuration Diagram II
y Multiple system configuration (Multi Cameras, 1 DVR)
Tx+ Tx- Rx+ Rx-
DVR 1
RS485
+
RS485
-
Tx1 Tx1 Tx2 Tx2
Tx3 Tx3
TRx
TRx
RS485
+
RS485
-
Tx+ Tx- Tx+ Tx- Tx+ Tx- Tx+ Tx-
Max 16 camera
… …
Multi port
Rx+ Rx-Rx+ Rx-Rx+ Rx-
Tx+ Tx- Rx+
Rx-
DVR PTZ Port
Tx1+ Tx1-
Tx2+
Tx2- Tx3+ Tx3- TRx+
RS485
Rx+
RS485
Rx-
TRx-