UPORT 1250 - USB to 2-port RS-232422485 serial hub

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.

Serial hub with 2 ports for RS-232/422/485

USB interface
Speed
- 12 Mbps, 480 Mbps
USB port
- USB Type B
USB standards
- USB 1.1/2.0 compliant

Serial interface
Number of ports
- 2
Connector
- DB9 male
Baud rate
- 50 bps to 921.6 kbps
Data bits
- 5, 6, 7, 8
Stop bits
- 1, 1.5, 2
Parity
- None, Even, Odd, Space, Mark
Flow control
- None
- RTS/CTS
- XON/XOFF
Serial standards
- RS-232/422/485 (DB9 connector)

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 11/10/8.1/8/7/Vista/XP/ME/98/95
- Windows Server 2022/2019/2016/2012 R2/2012/2008 R2/2008/2003/2000/NT
Linux driver
- Kernel versions: 6.x, 5.x, 4.x, 3.x, 2.6.x and 2.4.x
Mac driver
- macOS versions: 10.12 to 10.15, 11.x
Virtual machine
- VMware Fusion (Windows on macOS 10.12 to 11.x)
- VMWare ESXi (Linux Kernel 4)
- Parallels Desktop (Windows on macOS 10.12 to 11.x)
Support for Arm®-based platforms
- Linux Kernel 5.x / 4.x
Android API
- Android 3.1.x and higher

Performance parameters
Input voltage
- 5 VDC
Input current
- 360 mA @ 5 VDC

Physical properties
Housing
- metal
Dimensions
- 77 x 26 x 111 mm (3.03 x 1.02 x 4.37 in)
Weight
- 370 g (0.82 lb)

Environmental conditions
Storage temperature (including packaging)
- -20 to 75°C (-4 to 167°F)
Relative humidity
- 5 to 95% (non-condensing)
Operating temperature
- 0 to 60°C (32 to 140°F)

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
- IEC 61000-4-6 CS: 150 kHz to 80 MHz: 3 V/m
- IEC 61000-4-8 PFMF
Safety
- UL 60950-1

Declaration
Environmentally friendly product
- RoHS, CRoHS, WEEE

MTBF
Time
- 563.179 hours
Standards
- Telcordia (Bellcore) Standard