Chapter 1: Getting Started
Page 1–10
S
tride
®
MB Gateway User Manual
–
1st Edition Rev. E – August 2020
Serial Port Wiring
Serial Port Pinout
1
2
3
4
5
Serial Port
Pin
RS-232
RS-422/485
4-wire
RS-485
2-wire
1
CTS
RXD – (B)
–
2
RXD
RXD + (A)
–
3
TXD
TXD – (Z)
Data – (B)
4
RTS
TXD + (Y)
Data + (A)
5
GND
GND
GND
6
–
–
–
7
–
–
–
8
–
–
–
9
–
–
–
RS232 Wiring
Shield
(NC)
RS-232
Gateway
Slave
Recommended Cable - AutomationDirect L-19772 shielded cable or equivalent
1
2
3
4
5
6-9
RXD
TXD
(NC)
GND
RXD
GND
TXD
GND
(NC)
RS422/RS485 4-wire Wiring
TD-
TD+
RD-
RD+
GND
*
* User Supplied
120Ω Termination
Resistor
The Gateway contains a DIP switch selectable
120Ω Termination Resistor between RXD+ and
RXD- for each serial port, when the Gateway is
wired at one end of the serial network.
(NC)
RS-422/RS-485
Gateway
Slave 1
Slave 2
Last Slave
Recommended Cable - AutomationDirect L-19773 shielded cable or equivalent
1
2
3
4
5
6-9
RXD-
RXD+
TXD-
TXD+
GND
TD-
TD+
RD-
RD+
GND
TD-
TD+
RD-
RD+
GND
RS485 2-wire Wiring
D-
D+
GND
*
* User Supplied
120Ω Termination
Resistor
The Gateway contains a DIP switch selectable
120Ω Termination Resistor between RXD+ and
RXD- for each serial port, when the Gateway is
wired at one end of the serial network.
(NC)
RS-485
Gateway
Slave 1
Slave 2
Last Slave
Recommended Cable - AutomationDirect L-19954 shielded cable or equivalent
1
2
3
4
5
6-9
RXD-
RXD+
TXD-
TXD+
GND
D-
D+
GND
D-
D+
GND
