Ethernet to RS232 Cable Adapter NetPort
The NetPort Ethernet to RS232 Cable Adapter is a ‘plug-and-play’ Serial to Ethernet cable adaptor that will allow any device or machine with a serial port, such as network routers, meter readers, fire and security or monitoring systems, industrial control or legacy systems to become network and Internet enabled in an instant.
NetPort is the most cost-effective Serial-to-Ethernet Cable Adapter, and can be integrated into a system with minimal effort and used worldwide.
NetPort, the "plug and play" serial to Ethernet cable adaptor was a finalist for the Network Cabling Product of the Year at the prestigious 2004 Network Awards.
NetPort can also give you the ability to access and monitor serial devices and systems from remote offices simply by typing in the IP Address.
How Netport Works
The external NetPort adapter features an integrated web-server allowing any device to which it is attached to be 'contacted' and monitored via a standard Internet browser. TCP/IP protocol stacks are embedded into the NetPort, enabling it to operate within non-PC environments and the adapter features a Modem Emulation Mode allowing it to behave like a modem but communicate over TCP/IP.
Virtual Comm Port drivers are provided to allow a NetPort-connected device to communicate with existing software over TCP/IP (for Windows operating systems). Alternatively, ‘direct socket’ connection can be used.
The NetPort adapter has an in-built web server , allowing any device to which it is attached to be ‘contacted’ and monitored via an internet browser.
- Built in Web Server
- Ethernet Activity and Status LEDs
- Configurable Security Options
- 10/100Mbps Auto Sensing RJ45 Ethernet Port
- Configuration Utility for customisation
- Fire and Security Panels
- Remote IT Management
- Access Control
- Instrumentation and Measurement
- Building Control
- Handheld Computing
- Industrial Control
- EPOS (Point of Sale Terminals)
- Ticketing and Financial
- Serial Tunnelling
The NetPort Ethernet to RS232 Cable Adapter
is supplied with the following:
- NetPort Ethernet to RS232 Cable Adapter
- UK PSU (USA and European versions also available)
- Resource CDROM (containing Software Utilities, Applications Notes and Product Overviews)
- 10/100 Ethernet
- 230kbps serial throughput (serial speeds of up to 920Kb/s are achievable for volume applications)
- Simple 2 wire serial option
- Handshaking serial option
- 9 way Plug DTE serial cable
- 7.5-24v DC working voltage
- Powered from External PSU (2.5mm jack)
- Power available from spare DC socket
- Telnet, Web or serial configuration options
- Modem Emulation mode
- TCP/IP direct socket connection
- Virtual Comm Port connection
- Email Alerts can be sent from Netport
- DHCP Client
- 6 Page Web Server
There are an additional 2 model variations of Netport available as below:
LAN02 Model: Same specification as LAN01 except DCE Device (DB9 Socket)
LAN06 Model: DTE device (same specification as LAN01 but with DB9 pin 9 linked to the DC sockets for power feed options. The user can power the RS232 equipment from pin 9 or power LAN06 if the RS232 equipment puts power on pin 9.
|9 way Plug (DTE) serial cable||Yes||No||Yes|
|9 way Socket (DCE) serial cable||No||Yes||No|
|Powered from serial equipment (DB9 pin9)||No||No||Yes|
|Power provided to serial equipment (DB9 pin 9)||No||No|
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Q: I need to connect a phone switch to a PC using serial but need to do this over an ethernet connection
It depends on the connectors on the devices you have. Netport LAN01 is the DTE version, LAN02 is the DCE version. Both devices are functionally identical but the one is Male-Female (DCE) and the other Female-Male (DTE).
Q: I want to connect my program which using serial port to control through internet my plc.
Yes. The Netport connects serial devices to ethernet networks, allowing you to send serial data across the network, using a technique known as serial tunnelling.
The netport can be used in two modes.
- Single Netport mode: the Netport is connected to the PLC. A virtual serial port is installed onto a PC. Software on the PC can then talk to the remote serial device over the network. Whilst theoretically the PLC and the PC can be any distance apart, in practice the distance may introduce some latency into the system. That may be a problem if timings in the communication between the software and PLC are important
- Two Netport mode: the second mode uses two Netports. One Netport is connected to the PLC and it then talks to the second Netport over the network. The second Netport can then be plugged into another device or PC using a serial cable.
Q: I need to connect a serial port on a printer to a Unix box - will the Netport help?
Yes this should be possible, but you may need to use 2 Netport adaptors instead of one. The use of a single Netport requires the installation of a software based virtual serial port. The driver software supplied with the Netport that implements the virtual serial port will only work on Microsoft Windows. We would need to know a little more about what you are wanting to achieve before we can give you a definitive answer, please get in touch.
Q: Will the NetPort allow me to access a serial device over the Internet using a web browser?
The Netport Adaptor has an in-built web server so the device can be viewed over the Internet. The HTTP port on the Netport is also configurable. Once you have set a different port on the router, you can change the http port no. via the web interface. To do this with the Netport you should open Web Manager, Click on 'Server' and Change the "HTTP Port No' option and set the right port. This option allows the configuration of the web server port number. The valid range is 1-65535 (The default port is 80).
Q: Can NetPort be used for transmitting serial data by email?
The Netport does not send emails, it simply allows a serial device to connect to an IP network using a process called 'serial tunnelling'. The standard serial data is encapsulated in a TCP/IP packet and transmitted over the network.
Q: I specifically want to go from ethernet, over a serial link, then back to ethernet?
Q: I have a Coster controller and PCB332 interface with a serial port. At present I have a serial lead going from that to my computer to control the heating and hot water on the school site. I am moving office soon and want to connect the controller to our o
Q: I've a weighing scale with RS232, I want to see from my remote PC the weight on my web browser when the distant guy take place.
The RS232 to serial converter will allow you to effectively move the RS232 interface to anywhere on your network. So you could use whichever application you are now using to read the weighing scale on a PC that is potentially many hundreds of metres away from the weighing scale itself. The only problem I can see is that a web browser can't "browse" the RS232 interface, either a physcial one attached to the weighing scale or a remote virtual RS232 port provided by the RS232 to serial converter software, so I don't believe that would be possible.
You could though use whatever software you currently use from a PC that is not physically attached to the weighing scale.
Q: How much bandwidth would the serial / ethernet adapter take if I add this in a network?
The bandwidth largely depends upon the speed of the serial port and the nature of the protocol used by your serial device. Asa a result it is difficult to be precise as to the bandwidth that will be used.
In general. the amount of serial data is typically very small and is negligible on an ethernet network.
Q: Can I connect the ethernet device to the NetPort and the NetPort to the serial port of my PC to let the software read the vacuum level?
No. The NetPort is used to connect either two serial port devices or a serial port device and a PC over a network. It wouldn't know how to talk to your network based vacuum sensor.
Q: Can I connect a Netport each at the 2 sites, to the RS232 communication link and manage my remote device from central site, as if it was an extended ethernet link?
Yes. The Netport will accept serial traffic, encapsulate it in an Ethernet packet and transmit the data across the network, a process known as 'Ethernet Tunnelling', effectively giving you a long serial connection.
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