Moxa’s UPort USB-to-serial converters provide computers with high-performance, industrial-grade connections for up to 16 serial devices over a single USB port. A wide range of converters are available with features such as SuperSpeed USB 3.2 and Hi-Speed USB 2.0, advanced UARTs for high serial performance, COM port mapping, fixed-base COM functionality and more.

USB to 4-port RS-232/422/485 converter with 2 kV isolation protection, -40 to 75°C operating temperature

USB interface
USB standards
– USB 3.2 Gen 1
– USB 1.1/2.0 compliant
Speed
– 5 Gbps, 480 Mbps, 12 Mbps
Number of USB ports
– 1
USB connector
– USB type B

Serial interface
Connector
– DB9 connector
Number of ports
– 4
Serial standards
– RS-232/422/485
FIFO
– 512 bytes
Baud rate
– 50 bps to 921,6 kbps (supports non-standardised baud rates)
Parity
– None, Even, Odd, Space, Mark
Data bits
– 5, 6, 7, 8
Stop bits
– 1, 1.5, 2
Flow Control
– RTS/CTS, XON/XOFF
– RS-485 Data Direction Control
– Automatic Data Direction Control (ADDC)
Pull High/Low Resistor for RS-485
– 1 kilo-ohm, 150 kilo-ohms
Terminator for RS-485
– 120 ohms
Surge
– 0.5 kV
Isolation
– 2 kV (I models)

Serial signals
RS-232
– TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS-422
– Tx+, Tx-, Rx+, Rx-, GND
RS-485-4w
– Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w
– Data+, Data-, GND

Serial software functions
Windows driver
– Windows 11, 10, 8.1, 8 and 7
– Windows Server 2022, 2019, 2016, 2012 R2, 2012 and 2008 R2
Linux driver
– Kernel 6.x, 5.x and 4.x
Mac driver
– macOS version (Intel 64): 13, 12, 11 and 10.1x
Virtual Machine
– VMware Fusion (Windows on macOS 13, 12, 11, 10.1x, Intel 64)
– VMWare ESXi (Linux Kernel 4)
– Parallels Desktop (Windows on macOS 13, 12, 11, 10.1x, Intel 64)
Arm®-based platform support
– Linux Kernel 6.x, 5.x and 4.x
Android API
– Android 3.1.x and higher

Performance parameters
Input voltage
– 5 VDC via USB bus or 12 to 48 VDC via external power supply
Input current
– 445 mA @ USB 2.0
– 633 mA @ USB 3.2
– 340 mA @ 12 VDC

Physical properties
Housing
– metal
Dimensions
– 185 x 30 x 90.6 mm (7.28 x 1.18 x 3.57 in)
Weight
– 379 g (0.84 lb)
IP protection class
– IP20

Ambient conditions
Operating temperature
– -40 to 75°C (-40 to 167°F)
Storage temperature
– -40 to 75°C (-40 to 167°F)
Relative humidity
– 5 to 95% (non-condensing)

Standards and certifications
EMC
– EN 55032/35
EMI
– CISPR 32, FCC Part 15B Class A
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
– IEC 61000-4-5 Surge: Power: 1 kV, Signal: 0.5 kV
– IEC 61000-4-6 CS: 3 V; 150 kHz to 80 MHz
– IEC 61000-4-8 PFMF
Safety
– IEC 62368-1
– EN 62368-1
– UL 62368-1 (CB)
KC
– Shock
– IEC 60068-2-27
Vibration
– IEC 60068-2-6
– IEC 60068-2-64
Free fall
– IEC 60068-2-31

Declaration
Environmentally friendly product
– RoHS, CRoHS, WEEE

MTBF
Standards
– Telcordia Standard SR332, Telcordia Edition 2
Time
– 1.140,587 hours