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8-Port Terminal Block RS232/422/485 to USB Adp – ISO/Surge Protection
Model No.
SA-8PX-IS
RS232 to USB Adapter with Terminal Block
SA-8PX-IS Rugged 8-Port Terminal Block RS-232, RS-422, RS-485 USB 2.0 to Serial Converter is an ideal expansion adapter with an industrial grade metal chassis and supporting upstream USB type “B” screw lock mechanism to prevent accidental disconnect.
- Terminal Block connections for RS232/RS422/RS485 serial signal.
- Operates from host USB port of computer.
- 128-byte deep FIFO per transmitter and receivers.
- Supports USB type-B up-stream connection from the serial adapter.
Description
SA-8PX-IS Industrial Rugged 8-Port Terminal Block RS-232 USB 2.0 to Serial Converter is an Industrial Grade USB serial adapter designed to quickly add 8 high-speed RS-232 serial ports to desktop or notebook computers. The SA-8PX-IS is compatible with new and legacy RS232/422/485 devices enabling your network to grow without sacrifice.
This industrial grade USB to serial adapter supports serial port data transfer rates of up to 921.6 Kb/s, Full Speed (12Mbits/Second) and USB 2.0 High Speed (480Mbits/Second) and is backward compatible USB versions 1.0/1.1, providing scalability to new USB technologies. It also allows for multiple modules that can be added to a single USB interface for RS232/422/485 connectivity as needed.
The SA-8PX-IS 8-Port supports applications needing combinations of RS232, RS422 and RS485 in one single USB port. It supports screw lock features for the upstream (USB type B) port connector from the Host to prevent accidental disconnection. The adapter uses Plug-and-Play features and drivers, simply follow the instructions of Install Wizard until the install is complete.
The terminal blocks enable you easily install your wires for different devices and their direct connections. The SA-8PX-IS is an ideal solution for your expanding applications and making a big success in your projects.
Industrial 8-Port Terminal Block Adapter Features
- Supports 8 RS232/422/485 Combo Serial Ports
- RS232 Supports 3-wire Signals (TXD, RXD, GND)
- Supports 4-wire RS422/485 and 2-wire RS485 Modes
- Supports RS485 Auto Transceiver Turn Around by unique featured ATTATM Hardware
- 128-byte deep FIFO per transmitter and receivers
- Each Serial Port Supports 7-pin Lock-type Terminal Blocks
- Supports isolation and surge protection
- Supports Screw Lock Mechanism for USB type “B” upstream connector
- Supports one Downstream USB 2.0 Port for Daisy-chain Expansion Modules
- Supports Baud Rate up to 921.6Kpbs
Specifications:
USB 2.0 Port
- USB 2.0 High Speed (480Mbits/Second) and Full Speed (12Mbits/Second) compatible, backward compatible with USB 1.0 and USB 1.1, the USB 2.0 type “B” connector equips a Screw Lock Mechanism.
Serial Ports – Provides 8 7-pin terminal block connector RS232/422/485 ports, the key benefits are:
- Connectors: 8 7-pin lock type Terminal Block Connectors
- LEDs: Supports LED Indicators for TXD and RXD Signal Activity
- Interface: 4 modes: 3-wire RS232, 4-wire RS422 (TXD+/-, RxD+/-). 4-wire RS485 (TxD+/-, RxD+/-). 2-wire RS485 (Data+/-)
- Parity: None, Even, Odd
- Data bits: 5,67,8,9 bits Data Frames
- Speed: up to 921.6Kbps
- Terminator: 120 OHM, can be Enabled/Disabled by DIP Switches
- ATTATM: Auto RS485 Transmitter buffer direction control by the ATTATM Hardware. Guarantee Fast Turn Around the Transceiver.
- Power: The Module Box should be powered by its 2-pin Terminal Block Connector
I/O Hardware:
- 8 7-pin Terminal Block Connectors
- 1 Up Stream and 1 Down Stream USB2.0 Ports
- 1 2-pin Terminal Block Power Input Connector
OS Support:
- Windows 11, 10, 8, 7, Vista, 2008, 2003, XP, Win 2000
- Linux
Environmental Specifications:
- Operating Temperature: 0 to 55°C (32 to 131?F), 10% to 90% relative humidity (non-condensing)
- Storage Temperature: -40 to 75°C (-40 to 167?F), 5% to 95% relative humidity (non-condensing)
Form Factor (without ears and connectors):
- 9.68” (L)x 3.37”(W)x0.91”(H) (24.60cm x 8.57×2.32cm)
Package Contents
- 8 port RS232/422/485 to USB adapter
- USB A to B cable
- Driver Disc
- Paper installation guide
*Surface Mounting screws not included.
Specifications
Product Specifications
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Optional Accessories
Optional Accessories
The 8 port RS232/422/485 to USB adapter has certain accessories that work with it. These accessories are what you can order if needed.
Support
Product Documentation & Drivers
Product Documentation
Need drawings, CAD files, or other compliance documentation? Click HERE
Serial F.A.Q.
Product F.A.Q.
View frequently asked product questions below. For all serial troubleshooting, visit this page.
Still need help? Reach out!
-
Do these adapters require an external power supply?
Most of our single and dual-port models are USB bus-powered. High-density rackmount models (8-port+) feature integrated or external power supplies for maximum signal integrity.
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What is the difference between an isolated and non-isolated serial adapter?
Isolated adapters use optical barriers to physically separate the electrical signals. This protects your computer from 2,500V surges and ground loops common in factory environments.
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Can I use these adapters with Windows 11?
Yes, all Coolgear Serial adapters use modern FTDI or Silabs chipsets with WHQL-certified drivers for full Windows 11, Mac, and Linux support.
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What is COM Port Retention and why do I need it?
COM Port Retention ensures that your assigned COM port number remains the same every time you plug in the adapter or reboot your PC. This prevents software communication errors and eliminates the need to manually reconfigure your application settings whenever hardware is moved.
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How do I clean and reinstall my FTDI drivers?
View Answer
-
- Download the CDM Uninstaller HERE.
- Extract the zip file, or open the “CDMuninstallerGUI.exe” utility.
- Leave the ‘Vendor ID’ set to 0403 and ‘Product ID’ set to 6001.
- Click Add.
- Click Remove Devices.
- Download the corresponding driver for your operating system and follow on-screen prompts. Windows Driver | MacOS Driver
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How can I change my device’s COM port?
View Answer
-
- Click on Start and navigate to the Control Panel
- Locate and click on Device Manager
- Under “Ports (COM & LPT)” you will find your serial device titled “USB Serial Port” along with its current COM Port.
- Right click on “USB Serial Port” and click on Properties.
- Navigate to the “Port Settings” tab and click on “Advanced…”
- Once there, the “COM Port Number:” can be changed with a dropdown menu to select the port number.
- Click your desired port number (i.e. COM2) and click “OK”.
- Click “OK” once more.
- Your serial device is now assigned to your chosen COM Port.
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How do I check to ensure the COM port is listed properly in Windows?
View AnswerTo ensure your serial device is installed properly, complete the following:
- Press Windows Key + R to open the Device Manager. Once Run comes up, type “devmgmt.msc” into the text field and press Enter.
- Expand the section labeled, Ports (COM & LPT).
- You should now see a COM number in brackets to the right of each port. If the device is installed properly, no exclamation points or question marks should be present next to the device.
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I have everything hooked up, but nothing is functioning correctly.
View AnswerTo rule out potential issues, quickly test your individual components to ensure that they are working correctly individually, and are not the source of the problem:
- Serial cables
- Serial ports
- Serial devices
Test your components by:
- Hook up the serial cable(s), serial port(s), and serial device(s) in a different setup to see if the issue stems from a particular component, or the setup as a whole.
- Replace the serial cable, port, or device within your setup to further troubleshoot the issue’s origin.
When testing cables:
- Test each cable individually.
- Use short cables when you are testing.
When testing serial ports and devices:
- Press the Windows key + R, in Run, type devmgmt.msc, and press Enter to open the Device Manager. You can then check to see if your device is listed under Ports (COM & LPT).
- Ensure that the COM port number is the correct number for the serial device and that the software being used to connect the computer to the serial device uses the correct COM port number.
- If the device is listed with an error, follow the instructions on the website to reinstall the drivers.
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Serial communication is not functioning correctly, how can I tell if the problem caused by the adapter or my serial software application?
View AnswerOlder serial communication applications make use of legacy hardware addresses, often incompatible with PCI, PCIe, and USB to Serial products. Contact the software provider to troubleshoot.
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I am receiving an error when I try to install the drivers in Windows 8 64 bit.
View AnswerDriver Signature Enforcement in Windows 8 may need to be disabled in order to use various drivers. After disabling this feature, the driver will be allowed to install.
Note: You are required to restart your computer after disabling the Driver Signature Enforcement. Save all open work on your computer.
Disable driver signature enforcement:
- Press the Windows key + C.
- Click Settings > Change PC Settings.
- In the left pane, click General.
- In the right pane, under Advanced startup, click Restart now.
When your system restarts:
- Click Troubleshoot > Advanced options > Startup Settings > Restart.
- Press 7.
When your computer restarts, Driver Signature Enforcement will be disabled and you can install the drivers.
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