Discontinued

1 Port RS232 Serial over IP Ethernet Device Server

Connect to, configure and remotely manage an RS-232 serial device over an IP network

Product ID: NETRS232_1

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  • Comes complete with Ether Link Manager software making serial device configuration easy
  • Data transfer rates of up to 115.2 Kb/sec per port
  • Browser based configuration of network settings, serial port line settings, UART transmit and receive buffer trigger levels and serial port flow control

This Ethernet-to-Remote RS232 Serial interface converter allows you to install your RS232 serial devices anywhere on your TCP/IP Ethernet WAN/LAN, and still access them as if they were right beside you - even if the connection is established through an Internet connection!

The serial interface converter provides easy serial control, even at the longest distances, allowing access to the remote serial ports from within your local computer Windows device manager.

The Ethernet to RS232 Remote Serial converter is designed to function seamlessly with your other serial ports for totally transparent operation. Your serial equipment – card scanners, access keypads, bar code scanners, and more – will operate as smoothly as if the serial ports were right inside your computer. For industrial automation, security, Point of Sale, or any time you need reliable, long-range serial communications, the Ethernet/Serial interface converter delivers superior performance in any environment.

Applications

  • Manufacturing (CNC machinery, process control equipment, bar code scanners, serial printers)
  • Security (UPS control, access key panels, video cameras, card readers)
  • Environmental Control (lighting, temperature, clocks)
  • POS (credit/debit card readers, receipt printers, bar code scanners, cash registers, scales)
  • Hospital (monitoring equipment, nurses' stations)
  • Hotel Front Desk (serial printers, bar code scanners, keyboard, mouse, receipt printer, credit/debit card reader)
  • Hospitality/Restaurant (credit card/debit card reader, serial printers)

The StarTech.com Advantage

  • Add one network-enabled RS-232 Serial port to any Ethernet network
  • Allows several users share a serial device
  • No need to setup numerous and costly dedicated serial device servers, manage serial devices from a single PC
  • Operates seamlessly with built-in serial ports, the remote serial ports appear alongside other serial ports in your Windows device manager
  • Works over the Internet!

Partner Numbers

  • UPC 065030806237

Compatibility

  • Windows 7 logo
  • Windows 8 logo
Windows® 8 / 8.1 (32/64bit), 7 (32/64), XP (32), 2000 (32)
Windows Server® 2008 R2

Specifications

Warranty Information Warranty Lifetime
Connector(s) Connector Type(s) 1 - DB-9 (9 pin, D-Sub)
1 - RJ-45
Environmental Operating Temperature 0° to 70° C
Hardware Ports 1
Packaging Information Package Length 9.3 in [23.6 cm]
Package Width 4.3 in [11 cm]
Package Height 2.4 in [62 mm]
Shipping (Package) Weight 1.1 lb [0.5 kg]
Performance Maximum Data Transfer Rate 115.2 Kbps
Supported Protocols RS-232, TCP/IP, UDP, HTTP, ICMP, TFTP
Physical Characteristics Color Beige
Product Length 5.1 in [13 cm]
Product Width 3.7 in [95 mm]
Product Height 1.7 in [4.4 cm]
Weight of Product 8.0 oz [227 g]
Power Power Source AC Adapter Included
Output Voltage 12V DC
Output Current 200 mA
Center Tip Polarity Positive
Software OS Compatibility Windows® 8 / 8.1 (32/64bit), 7 (32/64), XP (32), 2000 (32)
Windows Server® 2008 R2
Special Notes / Requirements Note All modes other than Driver Mode operate independently of the operating system
What's in the Box Included in Package 1 - Serial over IP Unit
1 - Power Adapter
1 - Instruction Manual

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Drivers/Downloads

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Driver(s):

Firmware

Manual(s):

Datasheet

Product Support

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Frequently Asked Questions

Troubleshooting

You should not upgrade your device's firmware if you do not have any issues with the functionality of your device. The only time you should consider an upgrade is if you are experiencing a problem with the device, and you have confirmed that the firmware addresses this problem.  You can confirm this is the case by reviewing the documentation included with the firmware or by consulting with our Technical Support team. Incorrectly upgrading firmware can result in diminished performance so it is best to contact StarTech.com if you would like to perform this operation.

In order for the serial device and your computer to communicate to each other, they both need to be on the same physical network and the same subnet.

To connect your serial device and your computer to the same physical network, plug both devices into the same router. 

Typically, in order for devices to be on the same subnet, the first three numbers of the IP address must match. The fourth number of the IP address must be different, as two devices cannot have the same IP address. For example, if your computer’s IP address is 192.168.0.1, then the subnet is 192.168.0.XXX. You can replace the XXX with any number, as long as it is not currently in use by another device.

This device's default static IP address is 192.168.0.35.

If you are experiencing any issues in Windows 8 with the IP-Extender Manager software, complete the following:

  1. Right-click on the IP-Extender Manager software and click Properties.
  2. Click the Compatibility tab.
  3. Choose to Run this software in compatibility mode for Windows 7.
  4. Select the Run this program as an administrator check box.
  5. Click Apply and OK.

This is normal behavior. The software says connecting when data is being transferred. When data is not being transferred, the software says disconnected. The disconnected message does not mean that the device is not working.

When experiencing either issue, complete the following:

  1. Close the IP-Extender Manager software.
  2. Right-click on the IP-Extender Manager icon and click Properties.
  3. Click the Compatibility tab.
  4. Select the Run this program as an administrator check box.
  5. Click Apply and OK.
  6. Relaunch the software.
  1. Make sure that the serial device is on the same network as your computer.
  2. In an Internet browser, enter the IP address of the unit. The default IP address is 192.168.0.35.
  3. In the password field, enter the password. The default password is admin.
  4. Click Configure.

To check whether or not an RS-232 serial port is working, perform an RS-232 loopback test by doing the following:

  1. If your serial port is not female, convert it by taking a female/female cable or gender changer and plugging it into the serial port.
  2. Take a metal paperclip or wire and cross pins 2 and 3. If you look closely at the female end, the pins should be numbered.
  3. Open a telnet session on the COM port number of the device that you are testing. To find out the COM port number, refer to the following FAQ: https://www.startech.com/faq/com-port-listing-windows.

Note: To open a telnet session on the COM port, you need a telnet client like PuTTY or Hyper Terminal. Windows XP comes with Hyper Terminal.

  1. When the session is open, anything you type into it you should see. The loopback test fails when you cannot see what you are typing.

If the loopback test fails, make sure that the serial cable or gender changer that you are using works and that the adapter is in the correct port. 

You can check multiple ports at the same time by opening multiple sessions, putting the loopback adapter on one port, and trying to type into each session.  When you can see what you are typing, you know that the COM port is working and you can see which port number the physical serial port is. Close the window for the port that you just tested to speed up the testing of the remaining serial ports.

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There are several different ways that you can reset these devices to the factory settings. The following steps list the methods in order of easiest to hardest to perform.

Use the included software

  1. Open IP-Extender Manager.
  2. Right-click the serial over IP device and click Advanced.
  3. Click Restore Defaults.

Use the web interface

  1. To log into the web interface for the unit, type its IP address into a web browser and enter the password. By default, the password is admin.
  2. Click Network Settings.
  3. Click Restore factory defaults and reboot device.

Note: You can reset individual ports by going into Port Configuration and clicking the Reset button underneath Port Reset.

Reset the hardware

  1. Disconnect all of the cables from the serial over IP device. There should not be anything plugged into it.
  2. Remove the four screws from the bottom of the unit.
  3. Remove the cover.
  4. Short J15 (located near the Ethernet connection) with a jumper.
  5. Reconnect the Ethernet cable.
  6. Reconnect the power cable.
  7. The orange light on the Ethernet connection will illuminate and the green light will stay dark.
  8. When the green light comes on, the hard reset procedure is complete.
  9. Disconnect both cables from the serial over IP device.
  10. Remove the jumper from J15.
  11. Replace the cover.
  12. Replace the four screws.

How To

To troubleshoot this issue, you can try the following:

  • Ping the serial device.
  • Connect the serial device directly to the computer and ping the device.
  • Connect to the web interface (if there is one) or connect using the included software.

Before you begin, make sure that the serial device is on the same network and subnet. For more information, see this FAQ: http://www.startech.com/faq/serial_ip_networks_and_subnets.  If the device starts with an IP address that is not on your subnet, change your IP address to match the subnet being used before you continue.

Ping the serial device

If the serial device and your computer are on the same network and subnet, try pinging the device. 

To ping the device using a computer that is running a version of Windows XP, do the following:

  1. Click Start.
  2. Click Run.
  3. Type ping <IP address> and press Enter. For example, ping 192.168.0.20.

To ping the device using a computer that is running a version of Windows Vista or Windows 7, do the following:

  1. Click Start.
  2. Click Accessories.
  3. Click Command Prompt.
  4. Type ping <IP address> and press Enter. For example, ping 192.168.0.20.

To ping the device using a computer that is running a version of Windows 8, do the following:

  1. Press the Windows key + X.
  2. Click Run.
  3. Type cmd and press Enter.
  4. Type ping <IP address> and press Enter. For example, ping 192.168.0.20.

To ping the device using a computer that is running a version of Mac OS, do the following:

  1. Double-click the hard drive.
  2. Double-click Applications > Utilities > Network Utility.
  3. Click the Ping tab.
  4. Enter the IP address in the Please enter the network address to ping field.
  5. Enter the number of packets that you want to test with.

If you receive replies from the IP address, then you can see the device on the network and the issue is with something else.

Connect the serial device directly to the computer

To connect the serial device directly to the computer that you are troubleshooting with, complete the following:

  1. Use a crossover Ethernet cable to connect the device and the computer.
  2. Try pinging the device again.
  3. If you cannot ping the device, use a different computer, Ethernet cable, and serial device (if one is available).

Note: The second computer will need to be on the same network and subnet as the serial over IP device.

  1. If you still cannot ping the device, contact support.

Make sure that you are working in a secure environment

  1. Unplug the connection between your modem and your router. 
  2. Disable any firewalls (especially Windows Firewall), antivirus programs, and security programs that are currently running. 
  3. Try accessing the web interface (if the device has one) or try to connect using the included software.

If you still cannot connect to the device's web interface or by using the included software, contact support.

If you can access the web interface or connect using the included software, one at a time turn on your firewalls, antivirus programs, and security programs. Each time that you turn on software and cannot connect to the web interface or by using the included software, add an exception for the serial device to what you last re-enabled.

Compliance and safety

Compliance letters

Safety Measures

  • If product has an exposed circuit board, do not touch the product under power.
  • If Class 1 Laser Product. Laser radiation is present when the system is open.
  • Wiring terminations should not be made with the product and/or electric lines under power.
  • Product installation and/or mounting should be completed by a certified professional as per the local safety and building code guidelines.
  • Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.
*Product appearance and specifications are subject to change without notice.

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