The Moxa UPort 1250-G2-T is a 2-port USB 3.2 Gen 1 to RS-232/422/485 converter, -40 to 75 deg C wide temp. Each port is software-selectable across all three serial standards, with 512-byte FIFO, ADDC for RS-485, and baudrates to 921.6 kbps. Metal IP20 chassis with latching USB cable.
The Moxa UPort 1250-G2-T is a 2-port USB-to-serial converter that bridges a single USB 3.2 Gen 1 host port out to two independent DB9 serial ports. Each port is software-selectable for RS-232, RS-422, or RS-485 (2-wire or 4-wire), covering every legacy and current serial standard from a single dongle. A 512-byte per-port on-chip FIFO and full hardware/software flow control sustain clean operation at baudrates up to 921.6 kbps.
Moxa ships drivers for Windows 11 down to Windows XP (including Server 2000-2022), Linux kernel 4.x / 5.x / 6.x, macOS 10.1x to 13 on Intel 64, and Arm-based Linux (kernel 4.x/5.x/6.x). Virtual-machine support covers VMware Fusion (Windows on Intel macOS), VMware ESXi (Linux kernel 4), and Parallels Desktop. Android 3.1.x and later is supported through the Moxa Android API.
| General | |
|---|---|
| Model | UPort 1250-G2-T |
| Product Family | UPort 1200-G2 Series |
| USB | |
| Connector | USB Type B (host side) |
| Standards | USB 3.2 Gen 1, USB 1.1/2.0 compliant |
| Speed | 5 Gbps / 480 Mbps / 12 Mbps |
| Cable | USB 3.2 Gen 1 type A-to-type B with latch and screw (included) |
| Serial | |
| No. of Ports | 2 |
| Standards | RS-232 / RS-422 / RS-485 (software-selectable per port) |
| Connector | DB9 male (per port) |
| Baudrate | 50 bps to 921.6 kbps (non-standard baudrates supported) |
| FIFO | 512 bytes on-chip per port |
| Data Bits / Parity / Stop Bits | 5, 6, 7, 8 / None, Even, Odd, Space, Mark / 1, 1.5, 2 |
| Flow Control | RTS/CTS, XON/XOFF |
| RS-485 Direction Control | Automatic Data Direction Control (ADDC) |
| RS-485 Terminator | 120 ohms (built-in) |
| Pull High/Low Resistor | 1 kilo-ohm, 150 kilo-ohms |
| Serial Surge | 0.5 kV |
| Isolation | Not isolated |
| RS-232 Signals | TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND |
| RS-422 Signals | Tx+, Tx-, Rx+, Rx-, GND |
| RS-485 Signals | 2-wire: Data+, Data-, GND; 4-wire: Tx+, Tx-, Rx+, Rx-, GND |
| Driver Support | |
| Windows | 11, 10, 8.1, 8, 7, Vista, XP; Server 2022/2019/2016/2012 R2/2012/2008 R2/2008/2000 |
| Linux | Kernel 4.x, 5.x, 6.x |
| macOS (Intel 64) | 10.1x, 11, 12, 13 |
| Arm Platforms | Linux kernel 4.x/5.x/6.x |
| Virtual Machine | VMware Fusion, VMware ESXi (Linux 4), Parallels Desktop |
| Android | API 3.1.x and later |
| Power | |
| Input Voltage | 5 VDC (bus-powered via USB) |
| Input Current | 320 mA @ USB 3 / 160 mA @ USB 2 |
| Physical | |
| Housing | Metal |
| IP Rating | IP20 |
| Dimensions | 75.8 x 25.0 x 111.0 mm (2.98 x 0.98 x 4.37 in) |
| Weight | 259 g |
| Installation | Desktop, DIN-rail (DK-43-01 / DK-115-01), wall-mount (WK-32-01), side-mount (SK-115-01) – kits sold separately |
| LED Indicators | Power, TX, RX (double-sided corner LEDs) |
| Environmental | |
| Operating Temperature | -40 to 75 deg C (wide temp) |
| Storage Temperature | -40 to 75 deg C |
| Ambient Humidity | 5 to 95% (non-condensing) |
| Shock / Vibration / Freefall | IEC 60068-2-27 / IEC 60068-2-6 + -64 / IEC 60068-2-31 |
| Certifications | |
| EMC | EN 55032/35 |
| EMI | CISPR 32, FCC Part 15B Class A |
| EMS | IEC 61000-4-2/-3/-4/-5/-6/-8 (ESD Contact 4 kV / Air 8 kV; Surge Power 1 kV Signal 0.5 kV) |
| Safety | IEC 62368-1, EN 62368-1, UL 62368-1 (CB), KC |
| Green | RoHS, CRoHS, WEEE |
| MTBF (Telcordia SR-332) | 2,142,392 hrs |
| Warranty | |
| Warranty Period | 5 Years (product only) |
Same day dispatch on all stocked items.
