4 Port USB to RS485 High Speed Adapter w/12V DC Power Supply

USB to RS485 Adapter with Failed Signal Check

The USB to RS485 adapter installs automatically once connected to a USB port. When a serial device is connected to it, it will check for a fail signal indicated by a RED LED. With many application uses, this USB to RS485 serial adapter is mountable and includes an attached USB cable. This USB to RS485 adapter provides instant connectivity to communication devices for factory automation equipment, multi-drop data collection devices, barcode readers, time clocks, scales, and more in harsh, rugged environments

  • LEDs indicate operation mode, port status, activity and error for easy port monitoring and diagnosis
  • Serial port protected with surge protection of 15kV
  • Includes 12VDC power adapter with locking screw terminal power jack for reliable connection
  • Each RS-485 port with 2kb receive buffer and 2kb transmit buffer

$172.95

In stock

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Units Price
1 - 4 $172.95
5 - 11 $167.76
12 - 24 $164.30
25 - 49 $160.84
50+ $155.66

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Model No. CG-UHS4P485

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Description

Industrial Grade USB to RS485 Adapter

Adding a USB 4 port serial adapter is easy with plug and play technology. The CG-UHS4P485 serial adapter is automatically detected and installed to your system. It’s designed for the use in environments requiring 2-wire half duplex RS-485 modes. It can operated in two modes, without echo selectable by DIP switch.

The USB to RS485 adapter features a failure warning displayed by an LED. If an incorrect signal is sent by a defective device, a red LED will illuminate indicating a fail. This USB to RS485 adapter provides instant connectivity to communication devices for factory automation equipment, multi-drop data collection devices, barcode readers, time clocks, scales, and more in harsh environments

USB to RS485 Adapter Features

  • Adds four high speed half-duplex RS-485 serial ports via USB connection.
  • USB2.0 interface supports high speed 480Mbps.
  • Works with USB1.1, USB2.0 and USB3.0 host or USB hubs.
  • Supports two operation modes: RS-485 half-duplex echo and non-echo mode.
  • Installs as standard Windows COM port.
  • COM port number can be changed to any available COM port number.
  • Auto transmit buffer control for 2-wire RS-485 half-duplex operation.
  • Built-in 15kV ESD protection for each RS-485 port.
  • 600W surge protection on all RS-485 bus.
  • Provides failure warning when reverse connection or incorrect signals detected.
  • Protected circuits automatically shut down the breakdown RS-485 port.
  • Each RS-485 port with 2kb receive buffer and 2kb transmit buffer.
  • Requires no IRQ, DMA, I/O port.
  • RS-485 termination installed on-board, enabled or disabled by jumper.
  • Four dual color monitor LEDs indicating operation modes, port status, activity and error.
  • External 4-pin DIP switch for easy setting of RS-485 echo/non-echo operation modes.
  • Includes 12V DC power adapter with locking screw terminal power jack for reliable connection.
  • Supports two power output of +5VDC, 100mA, through pin 1 (VCC) of terminal block, for external devices requiring power.
  • Compact palm-size box with DIN rail brackets, optional DIN rail mounting kit for mounting.
  • Two mounting holes on the bottom of metal case for optional DIN rail mounting.
  • USB cable of 90cm (3ft) included and locked to the metal case for added security.
  • Virtual COM port drivers provided for Windows 10, 8.1, 8, 7, 2008, 2003, Vista, XP, 2000, Linux, Mac OS X.
  • CE, FCC approval.
  • Item Dimensions: 63mm × 85mm × 23mm (W × L × H), 87mm × 85mm × 23mm (W × L × H) with DIN rail brackets
  • Item Weight:

Package Contents

  • USB to 4 Port RS485 Serial Adapter
  • 12V DC power adapter
  • Driver Disc

*Surface Mounting screws not included.

Specifications

Product Specifications

Identifier
UPC

045079161191

Power
Input Voltage

+9~48V DC

Adapter Power

External

Mechanical
Color

Black

Item Dimensions (L × W × H)

63 x 85 x 23mm (WxLxH)

Item Weight

.46 lbs.

Mounting Style

Din-Rail, Surface Mount

Ports

4 Serial Ports

USB
USB Type

USB 2.0

Isolated/Surge Protected

Yes

Supported Data Speed

300bps to 921.6kbps

Serial Attributes
Serial Standards

RS485

Serial Ports

4

Software
OS Support

Win-2000, Linux, Mac OSX, Win 10, Win 7, Win 8, Win 8.1, Win Vista, Win XP

Environmental
Operating Temperature

0 to 60C

Performance
Isolated/Surge Protected

Yes

Other Data
Connector

6-Pin Terminal Block

Weight

1.18 lbs

Dimensions

11.250 × 5.750 × 2.375 in

UPC: 045079161191
Support

Product Documentation & Drivers

Product Documents


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!

  • How do I clean and reinstall my FTDI drivers?
      1. Download the CDM Uninstaller HERE.
      2. Extract the zip file, or open the “CDMuninstallerGUI.exe” utility.
      3. Leave the ‘Vendor ID’ set to 0403 and ‘Product ID’ set to 6001.
      4. Click Add.
      5. Click Remove Devices.
      6. Download the corresponding driver for your operating system and follow on-screen prompts. Windows Driver | MacOS Driver

    Video tutorial here.

  • How can I change my device’s COM port?
      1. Click on Start and navigate to the Control Panel
      2. Locate and click on Device Manager
      3. Under “Ports (COM & LPT)” you will find your serial device titled “USB Serial Port” along with its current COM Port.
      4. Right click on “USB Serial Port” and click on Properties.
      5. Navigate to the “Port Settings” tab and click on “Advanced…”
      6. Once there, the “COM Port Number:” can be changed with a dropdown menu to select the port number.
      7. Click your desired port number (i.e. COM2) and click “OK”.
      8. Click “OK” once more.
      9. Your serial device is now assigned to your chosen COM Port.

     

  • How do I check to ensure the COM port is listed properly in Windows?
    To ensure your serial device is installed properly, complete the following:

    1. Press Windows Key + R to open the Device Manager. Once Run comes up, type “devmgmt.msc” into the text field and press Enter.
    2. Expand the section labeled, Ports (COM & LPT).
    3. 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.
  • I have everything hooked up, but nothing is functioning correctly.
    To 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.
  • Serial communication is not functioning correctly, how can I tell if the problem caused by the adapter or my serial software application?
    Older 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.
  • I am receiving an error when I try to install the drivers in Windows 8 64 bit.
    Driver 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:

    1. Press the Windows key + C.
    2. Click Settings > Change PC Settings.
    3. In the left pane, click General.
    4. In the right pane, under Advanced startup, click Restart now.

    When your system restarts:

    1. Click Troubleshoot > Advanced options > Startup Settings > Restart.
    2. Press 7.

    When your computer restarts, Driver Signature Enforcement will be disabled and you can install the drivers.

  • I am receiving an error when I try to install the drivers in Windows 10 64 bit.
    Driver Signature Enforcement in Windows 10 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:

    1. Click the Windows icon in the taskbar.
    2. Click Power.
    3. Press and hold the Shift key and click Restart.

    After your computer restarts:

    1. Click Troubleshoot Advanced Options Startup Settings Restart.
    2. Press 7.

    When your computer restarts, Driver Signature Enforcement will be disabled and you can install the drivers.

  • Why did the software not install properly in macOS High Sierra (10.13) or later?
    High Sierra 10.13 and later versions of macOS enforce strict security policy revisions. In order for the device to operate, software packages like those used in this installation must be allowed in macOS Security and Privacy settings once the software is installed.

    Once the driver/software is installed, follow these steps to allow the software:

    1. Open System Preferences.
    2. Open Security & Privacy.
    3. Click the Allow button near the bottom of the General tab.
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