Lantronix 900-422 Benutzerhandbuch
Chapter 3: Installation and Hardware
XPress DR+ User Guide
21
Table 3-1. RJ45
Serial Connector Pinouts
Pin
Direction
Name
Function
1
Output from DR+ RTS
Ready To Send
2
Output from DR+ DTR
Data Terminal Ready
3
Output from DR+ TXD
Transmitted Data
4 Ground
GND Signal
Ground
5 Ground
GND Signal
Ground
6
Input to DR+
RXD
Received Data
7
Input to DR+
DSR
Data Set Ready
8
Input to DR+
CTS
Clear To Send
Screw Terminal Serial Connectors
Table 3-2. Serial Screw Terminal Pinout for RS422 (4-Wire)
Pin
Direction
Name
Function
1
Output
TX+
Transmit Data +
2
Output
TX-
Transmit Data -
3 Ground GND Signal
Ground
4
Input
RX+
Received Data +
5
Input
RX-
Received Data -
Table 3-3. Serial Screw Terminal Pinout for RS485 (2-Wire)
Pin
Direction
Name
Function
1
Bi-directional
TX+/RX+
Transmit Data + and Received Data +
2
Bi-directional
TX-/RX-
Transmit Data – and Received Data -
3 Ground
GND
Signal
Ground
4
Not Applicable Not Applicable Not Used
5
Not Applicable Not Applicable Not Used
Figure 3-4. Screw Terminal Ports
Figure 3-3. RJ45 Connector – Front View