UPort 1150/UPort 1150I

1-port RS-232/422/485 USB-to-serial converters with 2 KV isolation protection (optional)

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Evaluation units available for online purchase
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Features and Benefits

  • Compatible with USB 2.0
  • 12 Mbps USB data rate
  • 921.6 kbps maximum baudrate for super fast data transmission
  • Drivers provided for Windows, WinCE, and Linux
  • Mini DB9 female to terminal block adapter for easy wiring
  • LEDs for indicating USB and TxD/RxD activity
  • 2 kV electrical isolation (UPort 1130I and 1150I)

Instant Plug & Play

The UPort™ 1150/1150I USB-to-serial converters allow you to connect 1 RS-232/422/485 device to your laptop or workstation through the USB (Universal Serial Bus) port. These plug & play USB solutions are compatible with both new and legacy RS-232/422/485 devices, and are perfect for mobile, instrumentation, and point-of sale applications.


Simplified, Hassle-free Serial Port Expansion

USB plug & play makes serial port expansion easy, and does not require IRQ, DMA, or I/O address resources. Users no longer need to open the chassis or power down the system to add COM ports, saving on setup time and cost.


USB Interface
Compliance USB 1.0/1.1 compliant, USB 2.0 compatible
Connector UPort 1150: USB Type A
UPort 1150I: USB Type B
Speed 12 Mbps (Full-Speed USB)
Serial Interface
Number of Ports 1
Serial Standards RS-232/422/485
Connector DB9 male
Electrical Isolation 2 kV (UPort 1150I)
Baudrate 50 bps to 921.6 kbps
Serial Communication Parameters
Data Bits 5, 6, 7, 8
Stop Bits 1, 1.5, 2
Parity None, Even, Odd, Space, Mark
Flow Control RTS/CTS, XON/XOFF
FIFO 64 bytes
Serial Signals
RS-422 TxD+(B), TxD-(A), RxD+(B), RxD-(A), GND
RS-485-4w TxD+(B), TxD-(A), RxD+(B), RxD-(A), GND
RS-485-2w Data+(B), Data-(A), GND
RS-485 Data Direction ADDC® (Automatic Data Direction Control)
Operating Systems
Windows Real COM Drivers Windows 95/98/ME/NT/2000, Windows XP/2003/Vista/2008/7/8/8.1/10 (x86/x64), Windows 2012 (x64), Windows Embedded CE 5.0/6.0
Linux Real TTY Drivers Linux 2.4.x, 2.6.x, 3.x 
Note: Please refer to Moxa’s website for the latest driver support information.
Physical Characteristics
Housing UPort 1150: ABS + PC
UPort 1150I: Metal
Weight UPort 1150:
  Product only: 65 g (0.14 lb)
  Packaged: 200 g (0.44 lb)
UPort 1150I:
  Product only: 75 g (0.65 lb)
  Packaged: 320 g (0.72 lb)
Dimensions UPort 1150:
  37.5 x 20.5 x 60 mm (1.48 x 0.81 x 2.36 in)
UPort 1150I:
  52 x 80 x 22 mm (2.05 x 3.15 x 0.87 in)
Environmental Limits
Operating Temperature 0 to 55°C (32 to 131°F)
Storage Temperature -20 to 70°C (-4 to 158°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
Standards and Certifications
EMC EN 55022/24
EMI CISPR 22, FCC Part 15B Class B
EMS IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV
IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m
IEC 61000-4-4 EFT: Power: 1 kV; Signal: 0.5 kV
IEC 61000-4-5 Surge: Power: 2 kV
IEC 61000-4-6 CS: 150 kHz to 80 MHz: 3 V/m
IEC 61000-4-8 PFMF
Power Requirements
Input Voltage 5 VDC
Input Current UPort 1150: 77 mA @ 5 VDC
UPort 1150I: 260 mA @ 5 VDC
MTBF (mean time between failures)
Time 1,949,025 hrs
Standard Telcordia (Bellcore), GB
Warranty Period 5 years
Details See www.moxa.com/warranty

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Available Models

  Model No. Description
UPort 1150 1-port RS-232/422/485 USB-to-serial converter
UPort 1150I 1-port RS-232/422/485 USB-to-serial converter with optical isolation protection

Optional Accessories

Mounting Kits
  Model No. Description
DK35A DIN-Rail Mounting Kit (35 mm)
  Model No. Description
Mini DB9F-to-TB DB9 Female to Terminal Block connector