StarTech.com

Industrial RS232 to RS422/485 Serial Port Converter with 15KV ESD Protection

Convert an RS232 data signal to either RS485 or RS422 with this wall-mountable, ESD-protected adapter

Product ID: IC232485S

  • RS232 to 2/4-wire RS485 or RS422 conversion
  • Supports RS422 and RS485 auto detect and manual switching
  • ±15KV ESD protection on all signal pins
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  • Supports baud rates up to 921.6 Kbps
  • Wall-mountable
  • Supports a maximum connection distance of 4000ft (1200m)
€ 105,99 EUR exc VAT
€ 129,31 EUR inc VAT

Overview

The IC232485S Industrial RS232 to RS-422/485 Serial Converter is a bi-directional adapter that lets you adapt an RS232 data signal to either RS485 (2 or 4-wire) or RS422 and vice-versa, with support for baud rates up to 921.6 Kbps.

Ideal for industrial environments, the serial port converter provides 15KV ESD protection on all signal pins to protect costly and often sensitive control equipment against electrical damage. The serial converter also features a sturdy wall-mountable metal housing with Power, Tx and Rx LED indicators for simple status monitoring.

The adapter supports auto baud rate detection as well as RS-422 and RS485 mode detection, with an integrated dip switch for manual mode selection if needed, and supports connection distances of up to 4000ft (1200m).

Backed by a 2-year StarTech.com warranty and free lifetime technical support.

The StarTech.com Advantage

  • Protect sensitive industrial equipment with integrated ESD protection
  • Communicate efficiently with connected devices through high-speed 921Kbps support
  • Suitable for industrial environments with a rugged, wall-mountable enclosure

Applications

Monitor or control RS-422/485 serial devices like PLCs and other industrial equipment

Adapt and connect a scale, meter, scanner or one of several other control peripherals to a computer system with only RS232

Technical Specifications

Warranty Information
Warranty 2 Years
Hardware
Interface Serial
Port Style Cable Adapters
Ports 2
Performance
Max Baud Rate 921.6 Kbps
Maximum Cable Length 1200 m [3936 ft]
Serial Protocol RS-232/422/485
Connector(s)
Connector Type(s) 1 - DB-9 (9 pin, D-Sub) Female
1 - DB-9 (9 pin, D-Sub) Male
Indicators
LED Indicators 1 - Power (Green)
1 - Rx (Yellow)
1 - Tx (Yellow)
Power
Center Tip Polarity Positive
Input Current 0.3 A
Input Voltage 110V-240V AC
Output Current 1 A
Output Voltage 5 DC
Plug Type M
Power Consumption (In Watts) 5
Power Source AC Adapter Included
Environmental
Humidity 5~85% RH
Operating Temperature 0°C to 50°C (32°F to 122°F)
Storage Temperature -20°C to 60°C (-4°F to 140°F)
Physical Characteristics
Color Black
Enclosure Type Steel
Product Height 22 mm [0.9 in]
Product Length 117 mm [4.6 in]
Product Weight 150 g [5.3 oz]
Product Width 59 mm [2.3 in]
Packaging Information
Shipping (Package) Weight 285 g [10.1 oz]
What's in the Box
Included in Package 1 - RS-232 to RS-422/485 Converter
1 - Universal Power Adapter (NA/EU/UK)
1 - Instruction Manual

Certifications

Accessories

Product Support

Frequently Asked Questions

Troubleshooting

When you troubleshoot issues with a serial device, there are some quick tests that you can complete to rule out potential problems. You can test to make sure that the following components are working correctly and are not the source of the issue:

  • Serial cables

  • Serial ports

  • Serial devices

To test your setup components, try the following:

  • Use the serial cable, serial port, and serial device in another setup to see if the problem is with the components or the setup.

  • Use a different serial cable, serial port, and serial device in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup.

When you test your cables, it is recommended that you do the following:

  • Test each cable individually.

  • Use short cables when you are testing.

When you test the serial ports and serial device, it is recommended that you do the following:

Note: Some serial devices work only if the COM port number is between a certain range. For example, COM1 to COM4.

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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