Serial Card; Figure 31: Rs232/Rs485/Rs422 Via Rj45 Pinout; Table 11: Rs232/Rs485/Rs422 Via Rj45 Pinout - RuggedCom RuggedRouter RX1000 Family Installation Manual

Communication Ports

4.7 Serial Card

Upon unit start up, all ports default to RS485 mode. Each port can be individually set
to RS232, RS485 or RS422 mode via software. The RJ45 port is shown in Figure 31
and the signal description is given in Table 11.

Figure 31: RS232/RS485/RS422 via RJ45 pinout

Pin RS232 Mode
1
2
3
4
5
6
7
8
Shield

Table 11: RS232/RS485/RS422 via RJ45 pinout

NOTE: Pins 1, 2, and 3 are connected internally. Pins 7 and 8 are connected
internally. No internal termination is provided. . In RS232 mode, these pins enter a
high impedance state. A DTE that asserts DTR and expects DSR or DCD will
operate correctly. A DTE that asserts RTS will see CTS asserted, although
RuggedRouter will not perform hardware flow control on the port.
®
RuggedCom - Rev.122
Pin 8
RS485 Mode
DSR/RI
DCD
DTR
COM (Isolated GND)
RX
TX TX/RX +
CTS
RTS TX/RX -
Chassis GND
32
Pin 1
RS422 Mode
RX-
RX+
TX +
TX -
®
RuggedRouter RX1000 Family