Samsung SPC-2010 User Manual page 16

connecting to an external device
For the full duplex system
- Connect Rx (+) of RS-485 port of the PTZ camera with Tx1 (+) of SPC-2010.
- Connect Rx (–) of RS-485 port of the PTZ camera with Tx1 (–) of SPC-2010.
- Connect Tx (+) of RS-485 port of the PTZ camera with TRx (+) of SPC-2010.
- Connect Tx (–) of RS-485 port of the PTZ camera with TRx (–) of SPC-2010.
16_ connecting to an external device
Tx1 Tx2 Tx3 TRx
Tx1 Tx2 Tx3 TRx
Tx1 Tx2 Tx3 TRx