Table of Contents
Advertisement
Chapter 3
Communication Ports
Distance (km)
2.00
2.50
3.20
4.00
4.60
5.00
Section 3.4
Serial Ports
The RS920W supports DB9, RJ45 and SC (Standard or Subscriber Connector) fiber serial ports, all of which can
be run in RS232, RS485 or RS422 mode.
NOTE
On power-up, all serial ports default to RS485 mode. Each port can be individually set to RS232,
RS485 or RS422 mode through ROS. For more information, refer to the ROS User Guide for the
RS920W.
All serial ports feature an LED that indicates the current state of the port.
State
Green
Off
For specifications on serial ports, refer to
For information about how to connect devices configured to run in RS485 mode, refer to
Multiple RS485
Devices".
The following are the pin-outs for the DB9, RJ45 and SC connectors:
Figure 12: Serial DB9 Port
18
Distance (feet)
6600
8200
10500
13100
15100
16400
Section 4.5, "Serial Port
5
1
9
6
Downstream (Master
to Slave) (Mbps)
15
10
5
2.1
1.2
0.48
Description
Link activity detected
No link detected
Specifications".
a
Pin
1
2
3
4
5
6
7
8
Time to Achieve
Upstream (Slave
to Master) (Mbps)
Mode (Seconds)
0.54
0.54
0.54
0.54
0.54
0.18
Section 3.5, "Connecting
RS232 Mode
RS485 Mode
DCD
TX
TX/RX+
RX
DTR
Common (Isolated Ground)
DSR
cd
CTS
TX/RX-
cd
RTS
RUGGEDCOM RS920W
Installation Guide
Port Up in Auto
60
75
90
105
120
150
RS422 Mode
TX+
RX+
b
RX-
TX-
Serial Ports
Advertisement
Table of Contents
