User Manual
Table Of Contents
- Chapter 1 Introduction
- Chapter 2 Getting Started
- Chapter 3 Initial IP Configuration
- Chapter 4 Choosing the Proper Operation Mode
- Chapter 5 Web Console Configuration
- Chapter 6 Installing and Configuring the Software
- Appendix A SNMP Agents with MIB II & RS-232 Like Groups
- Appendix B Well Known Port Numbers
- Appendix C Federal Communication Commission Interference Statement
- Appendix D FCC Warning Statement
- Appendix E Service Information
NPort W2250/2150 Plus User’s Manual Choosing the Proper Operation Mode
4-4
Real COM Mode
NPort W2250/2150 comes equipped
with COM drivers that work with
Windows 95/98/ME/NT/2000/XP
systems. The driver establishes a
transparent connection between host
and serial device by mapping the IP of
the NPort W2250/2150’s serial port to a
local COM port on the host computer.
Real COM Mode
Proceed directly with data
transmission (connection
request not required)
TCP/IP
WLAN
NPort W2250
Antenna
Port 1
RS-232/422/485
Port 2
RS-232/422-485
Wireless Serial Device Server
W2250
Reset
Ethernet
12-48 VDC
Ready
WLAN
Serial 1
Serial 2
Serial Signal
Serial Device
One of the main conveniences of using Real COM Mode is that Real COM Mode allows users to
continue using RS-232/422/485 serial communications software that was written for pure serial
communications applications. The driver intercepts data sent to the host’s COM port, packs it into
a TCP/IP packet, and then redirects it through the host’s Ethernet card. At the other end of the
connection, the NPort W2250/2150 accepts the Ethernet frame, unpacks the TCP/IP packet, and
then transparently sends it to the appropriate serial device attached to one of the NPort
W2250/2150’s serial ports.
ATTENTION
Real COM Mode allows several hosts to have access control of the same NPort W2250/2150.
The driver that comes with your NPort W2250/2150 controls host access to attached serial
devices by checking the host’s IP address. Refer to Accessible IP Settings in Chapter 5 for more
details.