User Manual
Universal Serial/PROFIBUS DP Gateway
GT200-DP-RS
WWW.SSTCOMM.COM
6
2.5 Interface
2.5.1 Power Interface
GND
NC
24V+
1
2
3
2.5.2 PROFIBUS DP Interface
5
1
PROFI_A (Pin 8)
GND (Pin 5)
PROFI_B (Pin 3)
PROFIBUS DP interface uses DB9 male-connector, and the pins are defined as follow:
Pin
Description
3
PROFI_B, Data+
4
RTS (Request to send)
5
GND
6
+5 V for terminating resistors
8
PROFI_A, Data-
Others
Not connected
Note:
It’s recommended to use the standard PROFIBUS DP connector. The PROFI_B (Pin 3), PROFI_A (Pin 8) and the
shield GND (Bolt) must be connected.
The RTS (Pin 4) is used to determine the transmission direction. The +5 V (Pin 6) and GND (Pin 5) are used for
terminating resistors, and can also be used supply to fiber optic transceivers. The maximum output current of pin 5
and pin6 is 80mA.
Pin
Description
1
GND
2
Not connected
3
24V DC +
