Serial Ports - Siemens RUGGEDCOM RX1511 Installation Manual

RUGGEDCOM RX1511
Installation Guide
Section 3.5

Serial Ports

The RX1511 supports RJ45 serial ports that may be used with a null modem (crossover) serial cable.
Modes
Each serial port can be run in RS232, RS485 or RS422 mode.
On power-up, all serial ports default to RS485 mode. Each port can be individually set to RS232, RS485 or
RS422 mode through ROX II. For more information, refer to the ROX II User Guide for the RX1511.
LEDs
All serial ports feature an LED that indicates the current state of the port.
State
Green
Off
Pin-Out
The following are the pin-outs for the RJ45 connectors:
8
Figure 42: Serial RJ45 Port
Serial Ports
Description
Activity detected
No activity
Pin
1
3
4
Pin Name
8 Reserved (Do Not Connect)
RS232 Mode RS485 Mode
1
2 Reserved (Do Not Connect)
b
Common (Isolated) Ground
b
5 RX (Receive)
6 TX (Transmit)
d
7 Note
d
8 Note
Chapter 3
Communication Ports
Description
RS422 Mode
RX- (Receive
Negative)
RX+ (Receive
Negative)
TX/RX+ TX+ (Transmit
(Transmit/ Positive)
Receive
c
Positive)
TX/RX- TX- (Transmit
(Transmit/ Negative)
Receive
e
Negative)
TX/RX- TX- (Transmit
(Transmit/ Negative)
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