Titan USB-COMi Installation Manual page 14

RS-485 4-Wire (Full duplex) Signal Pin-outs of DB-9 Male
RS-485 2-Wire (Half duplex) Signal Pin-outs of DB-9 Male
RS-485 Signal Wiring
 Point-to-Point 4-Wire Full Duplex
USB-COMi(-SI)
2 TxD+(B)
1 TxD- (A)
3 RxD+ (B)
4 RxD- (A)
5
GND
 Multidrop RS-485 2-Wire Half-duplex
USB-COMi(-SI)
2
1
5
USB-COMi & USB-COMi-SI USB to RS-422/485 Adapters User's Manual
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 1
Pin 2
Pin 5
Data+(B )
Data- (A)
GND
All brand names and trademarks are the property of their respective owners.
RS-485 Device
RxD+ (B)
RxD- (A)
TxD+(B)
TxD- (A)
GND
RS-485 Device
Manual Part No. M062
Tx- (A)
Tx+(B)
Rx+(B)
Rx-(A)
GND
Data- (A)
Data+(B)
GND
Data+(B)
Data- (A)
GND
|
|
|
|
|
RS-485 Device x
Data+(B)
Data- (A)
GND
14