Samsung SPE-101 User Manual page 14

installation & connection
Connecting to the RS-422/485 device
Connect the external device to the [D+, D-] ports.
You can connect and control PTZ camera that supports RS-422/485 communication.
Port
TX+
RS-422 TX Data line

This is not available in RS-485 mode.
TX–
Control Signal Connection
• RS-485 Communications
Video
Encoder
D+
D-
• RS-422 Communications
Video
Encoder
D+
D-
TX+
TX-

Depending on camera's type, connection polarity can be different.
For further information, refer to the corresponding PTZ Camera's documentation.
14_ installation & connection
Description
Camera
D+
D-
Camera
TXD+
TXD-
RXD+
RXD-
Port Description
D+
RS-422 RX Data line or RS-485 Data line
D-