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Moxa USB to RS232 / 485 / 422 Isolated Converter

  • Model: UPort 1150I


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We have decided to no longer sell Moxa products. Please see our selection of alternative solutions.

We here have an isolated USB to RS232 / RS485 / RS422 converter from MOXA. As a leading manufacturer of data communication products MOXA has made this industrial grade optically isolated converter available in a 1-port version, which we recommend for all applications requiring a good product.

Not only does the UPort 1150I offer all three serial interfaces (RS232, RS485 and RS422) but it also has all handshake signals (DTR, DSR, RTS, CTS, DCD) active and illuminated with LED light indication, which is a great feature when troubleshooting communication problems.

A special interesting feature of this converter is that it has built-in "Pull-high", "Pull-low" and termination resistors. These can be set to 1K ohm, 150K ohm and 120 ohm respectively by DIP switches inside the converter. This feature is particular useful when communicating with sensitive serial devices or over long distances and with high baud rates.
The main feature of this converter however is that it is fully optically isolated for up to 2KV by three Dual-Channel Digital Isolators (1200ARZ) from Analog Devices, which effectively will protect the converter, your data and your equipment against damaging voltage spikes, ground loops and other voltage surges.

Most converters of this type only supports 2-wire RS485 and RS422, however a nice feature this converter has is that it supports both 2-wire RS485 and 4-wire RS485, in addition to RS232 and RS422 signaling.

As other converters in the MOXA UPort family the UPort 1150I is also designed around the high performance TUSB3410 processor chip from Texas Instruments which allows the user to configure several advanced port parameters, which makes it ideal for most advanced applications and configurations.

Communication wires can be connected directly to the DB9 connector however included with each converter is a DB9 screw terminal header block which makes connecting single wires easy.

Overall features
  • Port powered USB to RS232 / RS485 / RS422 converter
  • Optically isolated up to 2KV
  • High performance and reliability MOXA brand
  • 15N high retention USB type B connector
  • Texas Instruments processor chip
  • Supports 2-wire and 4-wire RS485
  • Indication LED lights for all handshake lines
  • WHQL compliant COM drivers included
  • Auto detection of data speed
  • Automatic Data Direction Control
  • Built-in 15 KV ESD electrostatic protection
  • DB9 terminal header block included
  • USB cable included

Useful optional accessories
(not included)

Null modem adapter
Null modem adapter

DB9 to RJ45 adapter
DB9 - RJ45 adapter

DB9 gender changer
Gender Changer

Part number UPort 1150I
Operating system
  • Windows 8 32/64, Windows 7 32/64, Server 2012, Vista 32/64, Server 2008 32/64, XP 32/64, Server 2003 32/64
  • Linux 2.4.x, 2.6.x, 3.0.x
  • Windows CE 6.0, 5.0
  • Android
Processor Texas Instruments TUSB3410
Serial driver Zywyn ZT3243F
Optical isolators Analog Devices 1200ARZ
Interface DB9 Male + included DB9 screw terminal block
Cable length 3 feet
USB interface Standard Type A Male
Indication LEDs TX, RX, DTR, DSR, RTS, CTS, DCD and Power
Ports 1-port
Serial signals RS232: TX, RX, RTS, CTS, DTR, DSR, DCD, GND
RS485: 2-wire: Data+ (B), Data- (A), GND
RS485: 4-wire: TX+ (B), TX- (A), RX+ (B), RX- (A), GND
RS422: TX+ (B), TX- (A), RX+ (B), RX- (A), GND
RS485 Data Direction ADDC (Automatic Data Direction Control)
Baud rate 50 bps to 921.6 Kbps
Parity None, Even, Odd, Space, Mark
Data Bits 5, 6, 7, 8
Stop Bits 1, 1.5, 2
Flow control RTS/CTS, XON/XOFF
TX / RX buffer size 64 bytes FIFO
COM port accessible by Included virtual COM port drivers
Optical isolation 2KV
Electrostatic (ESD) protection 15KV
Power 260 mA at 5 VDC
Interface compliance USB 1.1, 2.0, 3.0, EIA/TIA RS232, RS485, RS422
Housing SECC sheet metal (1 mm)
Regulatory compliance
  • EMC: CE, FCC
  • UL 60950-1
  • EMI: EN 55022 Class B, EN 61000-3-2, EN 61000-3-3, FCC Part 15 Subpart B Class B
  • EMS: EN 55024, 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
  • Green product: RoHS, CRoHS, WEEE
Dimensions 52 x 80 x 22 mm (2.05 x 3.15 x 0.87 in)
Weight 75 g (0.65 lb)
Operating temperature 0 to 55°C (32 to 131°F)
Ambient Relative Humidit 5 to 95% (non-condensing)
MTBF (mean time between failures) 1,949,025 hrs, Telcordia (Bellcore), GB database
Warranty 5 years limited warranty

For alternative USB to serial solutions please see our full selection of USB to Serial RS232 adapters

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