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 is 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, -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
– No. of USB Ports 1
– USB Connector USB Type B

Serial Interface
– Connector DB9 male
– No. of Ports 4
– Serial Standards RS-232/422/485
– FIFO 512 bytes
– Baudrate 50 bps to 921.6 kbps (supports non-standard baudrates)
– 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 Features
– Windows Drivers
Windows 11, 10, 8.1, 8 and 7
Windows Server 2022, 2019, 2016, 2012 R2, 2012 and 2008 R2
– Linux Drivers Kernel 6.x, 5.x and 4.x
– Mac Drivers 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 later

Power Parameters
– Input Voltage 5 VDC by USB bus power or 12 to 48 VDC by external power adaptor
– Input Current
266 mA @ USB 2.0
452 mA @ USB 3.2
240 mA @ 12 VDC

Physical Characteristics
– Housing Metal
– Dimensions 185 x 30 x 90.6 mm (7.28 x 1.18 x 3.57 in)
– Weight 373 g (0.82 lb)
– IP Rating IP20

Environmental Limits
– Operating Temperature -40 to 75°C (-40 to 167°F)
– Storage Temperature -40 to 75°C (-40 to 167°F)
– Ambient 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
– Freefall IEC 60068-2-31

Declaration
– Green Product RoHS, CRoHS, WEEE

MTBF
– Standards Telcordia Standard SR332, Telcordia Issue 2
– Time 1,431,860 hrs