UTS1109B
1 port USB-to-RS-422/485 Adapter
- Expands one independent RS-422/485 serial port through USB interface.
- Supports Universal Serial Bus Plug-n-Play and Hot-Swapping feature.
- No IRQ, DMA, I/O address resource required.
- Supports USB2.0 and USB1.1 compatible.
- Serial port provides transmission rate up to 921.6Kbps.
- Built-in ± 15KV ESD protection for all signals.
- Compact Size and low power consumption.
- Supports USB bus power without additional external power.
- Certified by CE, FCC, RoHS, and Microsoft WHQL approval.
- Support Microsoft Windows and Linux.








Introduction
SUNIX UTS1109B transform your Universal Serial Bus (USB) port into RS-422/485 serial ports for communication with serial devices. The UTS1109B adapter is compatible with both USB 2.0 and 1.1 specifications and provides serial port with transfer speed up to 921.6 Kbps. It provides a quick, simple and cost-effective way to bring the advantages of data accessibility for various commercial and industrial automation applications.
Features
Specifications
Serial Communication
Interface | RS-422/485 |
Controller | Prolific PL2303GC |
BUS | Universal Serial Bus (USB) |
No. of Port | 1-port |
IRQ & IO | Assigned by System |
FIFO |
Receive 768 byte Buffer Hardware Transmit 256 byte Buffer Hardware |
Signal |
RS-422: TxD+, TxD-, RxD+, RxD-, GND 4-wire RS-485: TxD+, TxD-, RxD+, RxD-, GND 2-wire RS-485: Data+, Data-, GND |
Baud rate | 50~921.6Kbps |
Data bit | 5, 6, 7, 8 |
Stop bit | 1, 1.5, 2 |
Parity | even, odd, none, mark, space |
Protection |
±15KV ESD protection for each signal Human Body Model (HBM) ±15KV IEC61000-4-2 Air Gap Discharge ±8KV IEC61000-4-2 Contact Discharge |
PCB Connector | DB9 Male with Screw nut |
Power
Power Source | USB Bus Power +5VDC (±5%) |
Standby Power Consumption | <20mA / 5VDC |
Working Power Consumption | <50mA / 5VDC |
Driver Support
Windows Client | 7 / 8.x / 10 (X86/X64) / 11 |
Windows Server | 2008R2 / 2012/ 2016(X64) |
Linux | Linux 2.6.x or later |
Standards and Certifications
EMC | CE, FCC, VCCI, BSMI |
Green | RoHS, WEEE,REACH |
Environment
Operation Temperature | 0 to 60°C (32 to 140°F) |
Operation Humidity | 10 to 80% RH |
Storage Temperature | -30 to 85°C (-22 to 185°F) |
Dimension
PCB Dimension | 15 x 45 x 33 mm |
Cable Length | 1200 mm (3.9ft) |
Support
Download Manual
Manual | UTS1109B Manual |
![]() |
Version | 1.0 | |
Update | 2021-11-05 11:10:40 | |
Size | 2.7MB |
Download Datasheet
Datasheet | UTS1109B Datasheet EN |
![]() |
Download Guide
Guide | USB to RS-422/485 Adapter Series QIG |
![]() |
Download Driver
Driver | PL23XX_Prolific_DriverInstaller_v408 | ![]() |
Version | V4.0.8 | |
Update | 2022-11-28 14:47:39 | |
Size | 12.5MB | |
OS |
Windows 11 64bit
Windows 10 32/64 bit
Windows 8.1 32/64 bit
Windows 8.0 32/64 bit
Windows 7 SP1 32/64 bit
Windows Vista SP2 32/64 bit
Windows Server 2019 64bit
Windows Server 2016 64bit
Windows Server 2012 R2 64-bit
Windows Server 2008 R2 SP1 64bit
Windows Server 2008 64-bit
|
Driver | PL2303HXD_G_Mac Driver_v2_1_0_20210311 | ![]() |
Version | V2.1.0 | |
Update | 2021-07-26 09:59:12 | |
Size | 513.2KB | |
OS |
OS X Mavericks 10.9
OS X Yosemite 10.10
OS X El Capitan 10.11
OS X Sierra 10.12
OS X High Sierra 10.13
OS X Mojave 10.14
OS X Catalina 10.15
OS X Big Sur 11
|
Driver | PL2303G_Linux_Driver_v1.0.6 | ![]() |
Version | V1.0.6 | |
Update | 2023-05-09 11:55:12 | |
Size | 657.3KB | |
OS |
Linux 2.6.15~5.4.89
|
UTS1109B
1 port USB-to-RS-422/485 Adapter
- Expands one independent RS-422/485 serial port through USB interface.
- Supports Universal Serial Bus Plug-n-Play and Hot-Swapping feature.
- No IRQ, DMA, I/O address resource required.
- Supports USB2.0 and USB1.1 compatible.
- Serial port provides transmission rate up to 921.6Kbps.
- Built-in ± 15KV ESD protection for all signals.
- Compact Size and low power consumption.
- Supports USB bus power without additional external power.
- Certified by CE, FCC, RoHS, and Microsoft WHQL approval.
- Support Microsoft Windows and Linux.








Introduction
SUNIX UTS1109B transform your Universal Serial Bus (USB) port into RS-422/485 serial ports for communication with serial devices. The UTS1109B adapter is compatible with both USB 2.0 and 1.1 specifications and provides serial port with transfer speed up to 921.6 Kbps. It provides a quick, simple and cost-effective way to bring the advantages of data accessibility for various commercial and industrial automation applications.
Features
Specifications
Serial Communication
Interface | RS-422/485 |
Controller | Prolific PL2303GC |
BUS | Universal Serial Bus (USB) |
No. of Port | 1-port |
IRQ & IO | Assigned by System |
FIFO |
Receive 768 byte Buffer Hardware Transmit 256 byte Buffer Hardware |
Signal |
RS-422: TxD+, TxD-, RxD+, RxD-, GND 4-wire RS-485: TxD+, TxD-, RxD+, RxD-, GND 2-wire RS-485: Data+, Data-, GND |
Baud rate | 50~921.6Kbps |
Data bit | 5, 6, 7, 8 |
Stop bit | 1, 1.5, 2 |
Parity | even, odd, none, mark, space |
Protection |
±15KV ESD protection for each signal Human Body Model (HBM) ±15KV IEC61000-4-2 Air Gap Discharge ±8KV IEC61000-4-2 Contact Discharge |
PCB Connector | DB9 Male with Screw nut |
Power
Power Source | USB Bus Power +5VDC (±5%) |
Standby Power Consumption | <20mA / 5VDC |
Working Power Consumption | <50mA / 5VDC |
Driver Support
Windows Client | 7 / 8.x / 10 (X86/X64) / 11 |
Windows Server | 2008R2 / 2012/ 2016(X64) |
Linux | Linux 2.6.x or later |
Standards and Certifications
EMC | CE, FCC, VCCI, BSMI |
Green | RoHS, WEEE,REACH |
Environment
Operation Temperature | 0 to 60°C (32 to 140°F) |
Operation Humidity | 10 to 80% RH |
Storage Temperature | -30 to 85°C (-22 to 185°F) |
Dimension
PCB Dimension | 15 x 45 x 33 mm |
Cable Length | 1200 mm (3.9ft) |
Support
Download Manual
Manual | UTS1109B Manual |
![]() |
Version | 1.0 | |
Update | 2021-11-05 11:10:40 | |
Size | 2.7MB |
Download Datasheet
Datasheet | UTS1109B Datasheet EN |
![]() |
Download Guide
Guide | USB to RS-422/485 Adapter Series QIG |
![]() |
Download Driver
Driver | PL23XX_Prolific_DriverInstaller_v408 | ![]() |
Version | V4.0.8 | |
Update | 2022-11-28 14:47:39 | |
Size | 12.5MB | |
OS |
Windows 11 64bit
Windows 10 32/64 bit
Windows 8.1 32/64 bit
Windows 8.0 32/64 bit
Windows 7 SP1 32/64 bit
Windows Vista SP2 32/64 bit
Windows Server 2019 64bit
Windows Server 2016 64bit
Windows Server 2012 R2 64-bit
Windows Server 2008 R2 SP1 64bit
Windows Server 2008 64-bit
|
Driver | PL2303HXD_G_Mac Driver_v2_1_0_20210311 | ![]() |
Version | V2.1.0 | |
Update | 2021-07-26 09:59:12 | |
Size | 513.2KB | |
OS |
OS X Mavericks 10.9
OS X Yosemite 10.10
OS X El Capitan 10.11
OS X Sierra 10.12
OS X High Sierra 10.13
OS X Mojave 10.14
OS X Catalina 10.15
OS X Big Sur 11
|
Driver | PL2303G_Linux_Driver_v1.0.6 | ![]() |
Version | V1.0.6 | |
Update | 2023-05-09 11:55:12 | |
Size | 657.3KB | |
OS |
Linux 2.6.15~5.4.89
|
UTS1109B
1 port USB-to-RS-422/485 Adapter
- Expands one independent RS-422/485 serial port through USB interface.
- Supports Universal Serial Bus Plug-n-Play and Hot-Swapping feature.
- No IRQ, DMA, I/O address resource required.
- Supports USB2.0 and USB1.1 compatible.
- Serial port provides transmission rate up to 921.6Kbps.
- Built-in ± 15KV ESD protection for all signals.
- Compact Size and low power consumption.
- Supports USB bus power without additional external power.
- Certified by CE, FCC, RoHS, and Microsoft WHQL approval.
- Support Microsoft Windows and Linux.








Introduction
SUNIX UTS1109B transform your Universal Serial Bus (USB) port into RS-422/485 serial ports for communication with serial devices. The UTS1109B adapter is compatible with both USB 2.0 and 1.1 specifications and provides serial port with transfer speed up to 921.6 Kbps. It provides a quick, simple and cost-effective way to bring the advantages of data accessibility for various commercial and industrial automation applications.
Features
Specifications
Serial Communication
Interface | RS-422/485 |
Controller | Prolific PL2303GC |
BUS | Universal Serial Bus (USB) |
No. of Port | 1-port |
IRQ & IO | Assigned by System |
FIFO |
Receive 768 byte Buffer Hardware Transmit 256 byte Buffer Hardware |
Signal |
RS-422: TxD+, TxD-, RxD+, RxD-, GND 4-wire RS-485: TxD+, TxD-, RxD+, RxD-, GND 2-wire RS-485: Data+, Data-, GND |
Baud rate | 50~921.6Kbps |
Data bit | 5, 6, 7, 8 |
Stop bit | 1, 1.5, 2 |
Parity | even, odd, none, mark, space |
Protection |
±15KV ESD protection for each signal Human Body Model (HBM) ±15KV IEC61000-4-2 Air Gap Discharge ±8KV IEC61000-4-2 Contact Discharge |
PCB Connector | DB9 Male with Screw nut |
Power
Power Source | USB Bus Power +5VDC (±5%) |
Standby Power Consumption | <20mA / 5VDC |
Working Power Consumption | <50mA / 5VDC |
Driver Support
Windows Client | 7 / 8.x / 10 (X86/X64) / 11 |
Windows Server | 2008R2 / 2012/ 2016(X64) |
Linux | Linux 2.6.x or later |
Standards and Certifications
EMC | CE, FCC, VCCI, BSMI |
Green | RoHS, WEEE,REACH |
Environment
Operation Temperature | 0 to 60°C (32 to 140°F) |
Operation Humidity | 10 to 80% RH |
Storage Temperature | -30 to 85°C (-22 to 185°F) |
Dimension
PCB Dimension | 15 x 45 x 33 mm |
Cable Length | 1200 mm (3.9ft) |
Support
Download Manual
Manual | UTS1109B Manual |
![]() |
Version | 1.0 | |
Update | 2021-11-05 11:10:40 | |
Size | 2.7MB |
Download Datasheet
Datasheet | UTS1109B Datasheet EN |
![]() |
Download Guide
Guide | USB to RS-422/485 Adapter Series QIG |
![]() |
Download Driver
Driver | PL23XX_Prolific_DriverInstaller_v408 | ![]() |
Version | V4.0.8 | |
Update | 2022-11-28 14:47:39 | |
Size | 12.5MB | |
OS |
Windows 11 64bit
Windows 10 32/64 bit
Windows 8.1 32/64 bit
Windows 8.0 32/64 bit
Windows 7 SP1 32/64 bit
Windows Vista SP2 32/64 bit
Windows Server 2019 64bit
Windows Server 2016 64bit
Windows Server 2012 R2 64-bit
Windows Server 2008 R2 SP1 64bit
Windows Server 2008 64-bit
|
Driver | PL2303HXD_G_Mac Driver_v2_1_0_20210311 | ![]() |
Version | V2.1.0 | |
Update | 2021-07-26 09:59:12 | |
Size | 513.2KB | |
OS |
OS X Mavericks 10.9
OS X Yosemite 10.10
OS X El Capitan 10.11
OS X Sierra 10.12
OS X High Sierra 10.13
OS X Mojave 10.14
OS X Catalina 10.15
OS X Big Sur 11
|
Driver | PL2303G_Linux_Driver_v1.0.6 | ![]() |
Version | V1.0.6 | |
Update | 2023-05-09 11:55:12 | |
Size | 657.3KB | |
OS |
Linux 2.6.15~5.4.89
|
UTS1109B
1 port USB-to-RS-422/485 Adapter
- Expands one independent RS-422/485 serial port through USB interface.
- Supports Universal Serial Bus Plug-n-Play and Hot-Swapping feature.
- No IRQ, DMA, I/O address resource required.
- Supports USB2.0 and USB1.1 compatible.
- Serial port provides transmission rate up to 921.6Kbps.
- Built-in ± 15KV ESD protection for all signals.
- Compact Size and low power consumption.
- Supports USB bus power without additional external power.
- Certified by CE, FCC, RoHS, and Microsoft WHQL approval.
- Support Microsoft Windows and Linux.








SUNIX UTS1109B transform your Universal Serial Bus (USB) port into RS-422/485 serial ports for communication with serial devices. The UTS1109B adapter is compatible with both USB 2.0 and 1.1 specifications and provides serial port with transfer speed up to 921.6 Kbps. It provides a quick, simple and cost-effective way to bring the advantages of data accessibility for various commercial and industrial automation applications.
Introduction
SUNIX UTS1109B transform your Universal Serial Bus (USB) port into RS-422/485 serial ports for communication with serial devices. The UTS1109B adapter is compatible with both USB 2.0 and 1.1 specifications and provides serial port with transfer speed up to 921.6 Kbps. It provides a quick, simple and cost-effective way to bring the advantages of data accessibility for various commercial and industrial automation applications.
Features
Specifications
Serial Communication
Interface | RS-422/485 |
Controller | Prolific PL2303GC |
BUS | Universal Serial Bus (USB) |
No. of Port | 1-port |
IRQ & IO | Assigned by System |
FIFO |
Receive 768 byte Buffer Hardware Transmit 256 byte Buffer Hardware |
Signal |
RS-422: TxD+, TxD-, RxD+, RxD-, GND 4-wire RS-485: TxD+, TxD-, RxD+, RxD-, GND 2-wire RS-485: Data+, Data-, GND |
Baud rate | 50~921.6Kbps |
Data bit | 5, 6, 7, 8 |
Stop bit | 1, 1.5, 2 |
Parity | even, odd, none, mark, space |
Protection |
±15KV ESD protection for each signal Human Body Model (HBM) ±15KV IEC61000-4-2 Air Gap Discharge ±8KV IEC61000-4-2 Contact Discharge |
PCB Connector | DB9 Male with Screw nut |
Power
Power Source | USB Bus Power +5VDC (±5%) |
Standby Power Consumption | <20mA / 5VDC |
Working Power Consumption | <50mA / 5VDC |
Driver Support
Windows Client | 7 / 8.x / 10 (X86/X64) / 11 |
Windows Server | 2008R2 / 2012/ 2016(X64) |
Linux | Linux 2.6.x or later |
Standards and Certifications
EMC | CE, FCC, VCCI, BSMI |
Green | RoHS, WEEE,REACH |
Environment
Operation Temperature | 0 to 60°C (32 to 140°F) |
Operation Humidity | 10 to 80% RH |
Storage Temperature | -30 to 85°C (-22 to 185°F) |
Dimension
PCB Dimension | 15 x 45 x 33 mm |
Cable Length | 1200 mm (3.9ft) |
Support
Download Manual
Manual | UTS1109B Manual |
![]() |
Version | 1.0 | |
Update | 2021-11-05 11:10:40 | |
Size | 2.7MB |
Download Datasheet
Datasheet | UTS1109B Datasheet EN |
![]() |
Download Guide
Guide | USB to RS-422/485 Adapter Series QIG |
![]() |
Download Driver
Driver | PL23XX_Prolific_DriverInstaller_v408 | ![]() |
Version | V4.0.8 | |
Update | 2022-11-28 14:47:39 | |
Size | 12.5MB | |
OS |
Windows 11 64bit
Windows 10 32/64 bit
Windows 8.1 32/64 bit
Windows 8.0 32/64 bit
Windows 7 SP1 32/64 bit
Windows Vista SP2 32/64 bit
Windows Server 2019 64bit
Windows Server 2016 64bit
Windows Server 2012 R2 64-bit
Windows Server 2008 R2 SP1 64bit
Windows Server 2008 64-bit
|
Driver | PL2303HXD_G_Mac Driver_v2_1_0_20210311 | ![]() |
Version | V2.1.0 | |
Update | 2021-07-26 09:59:12 | |
Size | 513.2KB | |
OS |
OS X Mavericks 10.9
OS X Yosemite 10.10
OS X El Capitan 10.11
OS X Sierra 10.12
OS X High Sierra 10.13
OS X Mojave 10.14
OS X Catalina 10.15
OS X Big Sur 11
|
Driver | PL2303G_Linux_Driver_v1.0.6 | ![]() |
Version | V1.0.6 | |
Update | 2023-05-09 11:55:12 | |
Size | 657.3KB | |
OS |
Linux 2.6.15~5.4.89
|