USB-2COMi-SI-M

2-Port USB to Serial Adapter (RS-422/485), DIN-rail & Wall Mountable Metal Case, 25kV ESD & 2kV Optical Isolation Protection

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Description

The USB Industrial I/O Adapter is designed to make industrial communication port expansion quick and simple. Connecting to a USB port on your computer or USB hub, the USB Industrial I/O Adapter instantly adds industrial communication port to your system. By taking advantage of the USB bus, the USB Industrial I/O Adapter makes it easier than ever to add RS-422 or RS-485 device to your system with easy plug-and-play and hot plug features. Adapting the new technology, the industrial I/O communication port expansion now takes the new bus with easy and convenient connectivity.

Plugging the USB Industrial I/O Adapter to the USB port, the adapter is automatically detected and installed. There are no IRQ & COM port conflicts, since the port doesn’t require any additional IRQ, DMA, memory as resources on the system. The RS-422 / 485 port functions as native Windows COM port, and is compatible with Windows serial communication applications.

The USB Industrial I/O Adapter provides instant connectivity to RS-422/485 communication device for factory automation equipment, multi-drop data collection devices, barcode readers, time clocks, scales , data entry terminals, PC to PC long distance communications and serial communication in harsh environments. The USB Industrial I/O provides industrial solution for applications requiring single node or multi-drop communications over short and long distance.

Features

  • Adds two high speed RS-422/485 serial port by connecting to a USB port
  • DB9 male connectors & 6-pin terminal block connectors for optimal flexibility
  • 2000V DC optical isolation for all signals
  • SECC metal chassis suitable for DIN rail mounting
  • Powered by USB port, no external power adapter required
  • LEDs indicate power, TxD and RxD for easy port monitoring and diagnosis
  • Installs as a standard Windows COM port
  • Automatic transmit and receive control for 2-wire RS-485 half-duplex mode
  • Built-in termination and biasing
  • Serial port protected with surge protection of 25kV
  • Non-standard baudrates supported
  • Easy plug and play installation and RS-422/485 device connection
  • High speed serial port with baud rate up to 3Mbps
  • Supports Windows 11, 10, 8.1, 8, 7, XP, Windows Server 2025, 2022, 2019, 2016, 2012 R2, 2012 and 2008 R2
  • Supports Linux Kernel version 3.0 and later
  • Supports Apple-provided VCP on OS X 10.9 and later

Specifications

USB Bus
InterfaceUSB 2.0 Full Speed, USB 1.1 compliant
Speed12Mbps, full-speed USB
USB ConnectorUSB type B
Serial Interface
InterfaceRS-422/485
Number of Ports2
ConnectorDB9 male, 6-pin terminal block
Max. SpeedRS-422/485:up to 10Mbps
RS-422 SignalsTxD-, TxD+, RxD+, RxD-, GND, RTS-, RTS+, CTS+, CTS-
RS-485 Signals (4 wire)TxD-, TxD+, RxD+, RxD-, GND
RS-485 Signals (2 wire)Data-, Data+, GND
FIFO128 bytes transmit 384 bytes receive
Protection25kV ESD protection for all signals
2000V DC optical isolation for all signals
Serial Communication Parameters
Data Bits7, 8
ParityNone, Even, Odd, Mark, Space
Stop Bit1, 2
Flow ControlHardware (RTS, CTS), XON/XOFF
Drivers Support
WindowsWindows 11, 10, 8.1, 8, 7, XP
Windows Server 2025, 2022, 2019, 2016, 2012 R2, 2012 and 2008 R2
LinuxLinux Kernel version 3.0 and later
MacApple-provided VCP on OS X 10.9 and later
Power
Power InputPower supplied via USB connector
No external power needed
Mechanical
CasingSECC metal chassis suitable for DIN rail mounting
Environmental
Operating Temperature0°C to 55°C (32°F to 131°F)
Storage Temperature-20°C to 75°C (-4°F to 167°F)
Operating Humidity5% to 95% RH
Safety ApprovalsCE,FCC

Document

Product Manual

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USB-2COMi-SI-M Manual

1 file(s) 598.21 KB
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Software

Driver Installation

You need to install driver first, prior to hardware installation. Do not connect the USB-to-Serial Adapter to the USB port of your computer, before you finish driver installation. 

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USB to Serial Drivers 2.12.36.4 for Windows

1 file(s) 2.11 MB
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USB to Serial Driver 2.2.18 for Mac OS X 10.3 to 10.8

1 file(s) 419.94 KB
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USB to Serial Driver 2.4.4 for Mac OS X 10.9 and above

1 file(s) 73.76 KB
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Uninstalling Drivers

Uninstallation Guide For Windows 2000

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Driver Uninstalling for Windows 2000

1 file(s) 361.05 KB
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Uninstallation Guide For Windows 10, 8.1, 8, 7, Vista, XP, Server 2016, Server 2008, Server 2003

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Driver Uninstalling for Windows 10, 8.1, 8, 7, Vista, XP, Server 2016, Server 2008, Server 2003

1 file(s) 643.52 KB
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Pinout

RS-422 DB9 Male Connector Pinout

PINSIGNAL
1TxD- (A)
2TxD+ (B)
3RxD+ (B)
4RxD- (A)
5GND
6RTS- (A)
7RTS+ (B)
8CTS+ (B)
9CTS- (A)
WordPress Table

RS-422 Terminal Block Pinout

PINSIGNAL
1TxD- (A)
2TxD+ (B)
3RxD+ (B)
4RxD- (A)
5GND
WordPress Table

RS-485 4-Wire (Full duplex) DB9 Male Connector Pinout

PINSIGNAL
1TxD- (A)
2TxD+ (B)
3RxD+ (B)
4RxD- (A)
5GND
WordPress Table

RS-485 4-Wire (Full duplex) Terminal Block Pinout

PINSIGNAL
1TxD- (A)
2TxD+ (B)
3RxD+ (B)
4RxD- (A)
5GND
WordPress Table

RS-485 2-Wire (Half duplex) DB9 Male Connector Pinout

PINSIGNAL
1Data- (A)
2Data+ (B)
5GND
WordPress Table

RS-485 2-Wire (Half duplex) Terminal Block Pinout

PINSIGNAL
1Data- (A)
2Data+ (B)
5GND
WordPress Table

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