16 Port USB to RS-232 422/485 Metal Serial Adapter DIN-Rail Mount

USB to RS485 DIN Rail Mount

The USB-16COMi-RM is an Isolated USB to 16 Port COM Serial Adapter for RS-232 422/485 communication devices. Includes rack mounting kits for industrial use. This mount is constructed within an industrial-grade metal chassis for harsh environments and circuit protection.

  • Adds 16 Isolated serial COM ports to your system.
  • Industrial-grade metal chassis for Rack Mounting needs.
  • External DIP switches for easy RS-232, RS-422, RS-485 mode settings.
  • Built-in switching power supply of 100V~240V

$681.95

Not in stock - Backorder allowed

Volume Pricing

Units Discount Price
1 - 4 $681.95
5 - 11 3 % $661.49
12 - 24 5 % $647.85
25 - 49 7 % $634.21
50+ 10 % $613.76

Also available from:

Model No. USB-16COMi-RM

Description

The USB-16COMi-RM is an industrial 16 Port USB to RS-232 Serial Adapter that also utilizes RS422, RS485 communication signals for various serial device connections. Constructed within an industrial-grade metal chassis for harsh environments and circuit protection.

The system USB bus is utilized in the operation of the 16 Port USB to RS-232 422/485 Serial adapter while using Plug-and-Play features for installation purposes. The USB-16COMi-RM serial adapter is automatically recognized as additional COM ports with no system IRQ, COM conflicts or configuration necessary. The adapter’s circuitry contains a built-in switching power supply of 100V/240V (input) for operation.

Mounting to a 19 inch communication rack is accomplished with the included rack mount kit and DIN-Rail brackets for industrial serial applications. The Industrial 16 Port USB to RS-232 Serial Adapter provides connectivity to such serial devices as modems, ISND, TA’s, POS, serial printers, and more. Signal mode settings are controlled from 16 DIP switches located to the back of the adapter as shown below. This USB to Serial Adapter is Ideal for remote access, retail and industrial applications.

 

Additional Features:

  • Adds sixteen RS-232, RS-422 or RS-485 serial ports by connecting to a USB port
  • External DIP switches for easy RS-232, RS-422, RS-485 mode settings
  • Installed as standard Windows COM port
  • SECC metal chassis with both DIN rail brackets and rack-mounting kits for flexible mounting
  • Full RS-232 modem control signals and hardware/software flow control
  • RS-232 data signals: TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND
  • RS-422 data signals: TxD-, TxD+, RxD+, RxD-, GND, RTS-, RTS+, CTS+, CTS-
  • RS-485 4-wire data signals: TxD-, TxD+, RxD+, RxD-
  • RS-485 2-wire data signals: Data-, Data+
  • Automatic transmit and receive control for 2-wire RS-485 half-duplex mode
  • Built-in termination and biasing
  • High speed serial port with the baud rate up to 921.6K bps
  • Non-standard baudrates supported
  • LEDs of Power, TxD and RxD for easy port monitoring and diagnostics
  • Serial port protected with surge protection of 10KV
  • Built-in switching power supply of 100V~240V
  • Easy plug and play installation and RS-232/RS-422/RS-485 device connection
  • COM port number assigned can be changed to any COM port number required
  • Works with USB 1.1 & 2.0 host port
  • Standard 19-inch, 1U rack mount chassis
  • Dimensions: 16.94in(L) x 5.82in(W) x 1.73in(H)
  • Hub Weight: 3.95 lbs.

Environmental Specifications:

  • Operating Temperature 0 to 55 °C (32 to 131 °F)
  • Operating Humidity 5 to 95% RH
  • Storage Temperature -20 to 75 °C (-4 to 167 °F)
  • OS Support:
    • Windows 98, Me, XP, 2000, 2003, CE, Vista, Windows 7, and Windows 8
    • Linux and Mac OS 10.X
  • Dimensions:
    • W: 429mm L: 147mm H: 44mm
    • W: 451mm L: 152mm H:44mm with DB9 connector and ears.

Package Contents

  • 16 port RS232/422/485 industrial serial adapter
  • Din Rail mounting plates and screws
  • Rack mounting brackets and screws
  • 2-Pin Terminal Block Power Supply
  • USB A to B cable

*Surface & Rack Mounting screws not included.

Specifications

Product Specifications

Environmental
Operating Temperature

0C to 55C

Performance
Isolated/Surge Protected

Yes

Hardware
Chipset

FTDI

Power
Power Source

2-Pin Terminal Block, AC Adapter Included

Software
OS Support

Linux, Mac OSX, Win 7, Win 8, Win Vista, Win XP

Serial Attributes
Serial Standards

RS422, RS485

USB
Isolated/Surge Protected

Yes

Screw Lock Compatible

Yes

Mechanical
Color

Black

Mounting Style

Surface Mount

Ports

16 Serial Ports

Compliance
Country of Origin

Taiwan

Certifications

,

Compliance

RoHS, TAA

Other Data
Connector

DB9 Male w/ Nuts

Warranty

1 year from date of purchase

Weight

7 lbs

Dimensions

22.5 × 8.5 × 2.5 in

UPC: 729440690991
Technical

Technical Specifications:

USB Bus
Compliance USB 1.1/2.0 compliant
Speed 480 Mbps, hi-speed USB
FIFO 128 byte transmit FIFO
384 receive FIFO
Serial Interface
Port Type RS-232/RS-422/RS-485 selectable
Number of Ports 16
Connectors DB9 male
Serial Line Protection
ESD Protection 10KV
Serial Port Speed
Baudrate 300 bps to 921.6k bps
Serial Communication Parameters
Data Bits 7, 8
Stop Bits 1, 1.5, 2
Parity None, Even, Odd, Space, Mark
Flow Control RTS/CTS, XON/XOFF
Serial Signals
RS-232 TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND, RI
RS-422 TxD-(A), TxD+(B), RxD+(B), RxD-(A), GND, RTS-(A), RTS+(B), CTS+(B), CTS-(A)
RS-485-4 wire TxD-(A), TxD+(B), RxD+(B), RxD-(A), GND
RS-485-2 wire Data-(A), Data+(B), GND
Driver Support
OS Windows 7, Vista, 2003, XP (WHQL certified) and 2000
Linux Kernel 2.6.3.1 and up built-in support
Power Supply
Input Self-powered
Built-in AC to DC switching power supply with wide
Range of AC input from 100VAC to 240VAC
Mechanical
Chassis SECC metal chassis with DIN rail bracket
Rack-mounting brackets included
Environmental
Operating Temperature 0 to 55 °C (32 to 131 °F)
Operating Humidity 5 to 95% RH
Storage Temperature -20 to 75 °C (-4 to 167 °F)
Safety Approvals EN55022 Class B, EN55024, EN61000-3-2, EN61000-3
IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5,
IEC 61000-4-6, IEC 61000-4-8, IEC 61000-4-11.
CISPR PUB. 22 and FCC Part 15 Class B.

 

RS-232 & RS-422 & RS-485 DB9 Male Connector Pin-outs
DB-9 Male Pin-out diagram
RS-232 DB9 Male

    RS-232 Signal Pin-outs of DB-9 Male

  Pin Signal  
  1 DCD  
  2 RxD  
  3 TxD  
  4 DTR  
  5 GND  
  6 DSR  
  7 RTS  
  8 CTS  
  9    
 
RS-422 DB9 Male

    RS-422 Signal Pin-outs of DB-9 Male

  Pin Signal  
  1 TxD- (A)  
  2 TxD+(B)  
  3 RxD+(B)  
  4 RxD- (A)  
  5 GND  
  6 RTS- (A)  
  7 RTS+(B)  
  8 CTS+(B)  
  9 CTS- (A)  
 
RS-485 DB9 Male

    RS-485 4-Wire (Full duplex) Signal Pin-outs of DB-9 Male

  Pin Signal  
  1 Tx- (A)  
  2 Tx+(B)  
  3 Rx+(B)  
  4 Rx- (A)  
  5 GND  
 

    RS-485 2-Wire (Half duplex) Signal Pin-outs of DB-9 Male

  Pin Signal  
  1 Data- (A)  
  2 Data+(B)  
  5 GND   
 

RS-422 Signal Wiring

    Point-to-Point 4 Wire Full Duplex

USB-16COMi-RM                                    RS-422 Device
RS-422 Signal Wiring Point-to-Point 4 Wire Full Duplex diagram

    RS-422 with Handshaking

USB-16COMi-RM                                   RS-422 Device
RS-422 with Handshaking diagram

RS-485 Signal Wiring

    Point-to-Point 4-Wire Full Duplex

USB-16COMi-RM                               RS-485 Device
RS-485 Signal Wiring Point-to-Point 4-Wire Full Duplex

    Multidrop RS-485 2-Wire Half-duplex

USB-16COMi-RM                               RS-485 Device
Multidrop RS-485 2-Wire Half-duplex
Accessories & Replacement Parts

Accessories & Replacement Parts

The 16 Port USB to RS-232 422/485 Metal Serial Adapter has certain accessories that work with it. These accessories are what you can order if needed.

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.