Moxa UPort 1250-G2/KC | UPort 1250-G2 USB to Serial Converter, 2-Port RS-232/422/485, KC

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SKU:UPort 1250-G2/KC

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Description

The Moxa UPort 1250-G2/KC is a 2-port USB to serial converter that adds two RS-232/422/485 COM ports to a laptop or workstation over a single USB 3.2 Gen 1 connection. This non-isolated KC variant operates from 0 to 60°C and is built for connecting legacy serial devices, instrumentation and point-of-sale equipment to modern PCs.

Housed in a metal enclosure and powered directly from the USB bus, it needs no external supply. Drivers are available for Windows, Linux and macOS, and the latching USB cable helps keep the connection secure. Baudrates from 50 bps to 921.6 kbps, including non-standard rates, give broad compatibility with industrial and commercial serial equipment.

Features

- Adds two RS-232/422/485 serial ports through one USB connection
- USB 3.2 Gen 1 with 5 Gbps upstream, backward compatible with USB 2.0/1.1
- Latching USB cable for a firmer, more reliable connection
- Automatic data direction control (ADDC) for RS-485
- Bus powered, no external power adapter required
- Metal housing for durability in industrial settings
- Drivers for Windows, Linux and macOS
- Suited to legacy serial devices, instrumentation and point-of-sale applications

Warranty

Moxa offers varying warranty periods depending on the product category:
• 5-Year Warranty: Applies to most industrial networking and connectivity products, including Ethernet switches, routers, wireless devices, serial converters, protocol gateways, and USB hubs.
• 3-Year Warranty: Covers x86-based industrial computers and panel PCs.
• 1-Year Warranty: Applies to external batteries, LCD panels, power adapters, antennas, and other select accessories.
Extended Warranty Options:
IP Trading offers tailored extended warranty solutions and support packages for Moxa products. Contact our team to explore options that align with your organization's needs.
https://www.moxa.com/en/support/repair-and-warranty/warranty-policy

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Datasheet

Technical Specifications

- 2 x DB9 male serial ports, software selectable RS-232/422/485
- USB 3.2 Gen 1 (5 Gbps), compatible with USB 2.0/1.1, USB Type B connector
- Baudrate: 50 bps to 921.6 kbps, supports non-standard baudrates
- FIFO: 512 bytes
- Parity: None, Even, Odd, Space, Mark
- Flow control: RTS/CTS, XON/XOFF
- RS-485 pull high/low resistor: 1 kilo-ohm or 150 kilo-ohms, 120 ohm terminator
- Surge protection: 0.5 kV, no isolation
- Power: 5 VDC from USB bus, 320 mA at USB 3 or 160 mA at USB 2
- Metal housing, IP20
- Dimensions: 75.8 x 25.0 x 111.0 mm, weight 259 g
- Operating temperature: 0 to 60°C, storage -40 to 75°C
- Humidity: 5 to 95% non-condensing
- Safety: IEC 62368-1, EN 62368-1, UL 62368-1 (CB), KC
- EMI: CISPR 32, FCC Part 15B Class A
- MTBF: 2,142,392 hrs (Telcordia SR332)
- Package: converter, USB 3.2 Gen 1 cable with latch and screw, 4 x rubber stands, quick installation guide

FAQs

Q: How many serial ports does the UPort 1250-G2/KC provide?
A: It provides two DB9 male serial ports, each supporting RS-232, RS-422 and RS-485, through a single USB Type B connection.

Q: Does it need an external power supply?
A: No. It is powered from the USB bus at 5 VDC, drawing 320 mA on USB 3 or 160 mA on USB 2.

Q: Which operating systems are supported?
A: Drivers are available for Windows (including Windows 11 and 10), Linux kernels 4.x, 5.x and 6.x, and macOS.

Q: Does this model provide electrical isolation?
A: No. This is a non-isolated model with 0.5 kV surge protection. Isolation is only offered on the I variants of the UPort 1200-G2 range.

Q: Can it be used with a USB 2.0 port?
A: Yes. It is backward compatible with USB 2.0 and 1.1, though the full 5 Gbps upstream speed requires USB 3.2 Gen 1.

Q: What is the operating temperature range?
A: This variant operates from 0 to 60°C, so it suits office and controlled indoor environments rather than wide-temperature deployments.

Datasheet

This product has a detailed PDF datasheet available. Open PDF datasheet in a new tab .

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Moxa UPort 1250-G2/KC | UPort 1250-G2 USB to Serial Converter, 2-Port RS-232/422/485, KC