EZWatch TurboView DVR - Manual (Page 117)

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13. KEYBOARD CONTROLLER
13.1 Connection
 User may connect cameras and Keyboard through DVR in various ways.
 Below shows the major probable connection methods through RS-485;
13.1.1 Configuration Diagram I
 Single system configuration (1 Camera, 1 DVR)
13.1.2 Configuration Diagram II
 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-