USB-485/4
Starting at $1,165.00
778476-64
778476-74
778476-34
778476-54
778476-24
778476-44
778476-14
778476-104
778476-94
4-Port, USB, RS485/RS422 Serial Interface Device
Overview
The USB-485/4 interface transforms your USB port into a single asynchronous serial port for communication with RS485 and RS422 devices. You can use a USB-485/4 port as a standard serial port from your application, including RTS/CTS hardware handshake lines. NI serial interfaces also appear as standard COM ports for compatibility with programs that use serial communications.
Included Items
- Device
- 1 m, USB A 2.0 male-to-USB-B 2.0 male USB cable
- 12 V, 1.5 A, 18 W desktop power supply
- 250 V, 10 A power cord (China) (Included only with part number 778476-104)
- 2.3 m, 120 VAC power cord (US) (Included only with part number 778476-14)
- 240 V, 10 A power cord (AUS) (Included only with part number 778476-34)
- 240 V power cord (EU) (Included only with part number 778476-44)
- 240 V power cord (NA) (Included only with part number 778476-54)
- 240 V, 10 A power cord (UK) (Included only with part number 778476-64)
- 125 V, 15 A power cord (Japan) (Included only with part number 778476-74)
- 250 V, 10 A power cord (Korea) (Included only with part number 778476-94)
- Safety, Environmental, and Regulatory documentation
USB-485/4 Details
Part Numbers (9) Price | 778476-64 | 778476-74 | 778476-34 | 778476-54 | 778476-24 | 778476-44 | 778476-14 | 778476-104 | 778476-94 |
|---|---|---|---|---|---|---|---|---|---|
| Contact us | |||||||||
| NI Lead Time | 6-7 weeks | 6-7 weeks | 12-13 weeks | 6-7 weeks | 16-17 weeks | 6-7 weeks | 6-7 weeks | 6-7 weeks | 6-7 weeks |
| Supported Power Input | United Kingdom 240VAC | Japan 100VAC | Australia 240VAC | North America 240VAC | Swiss 220VAC | Universal Euro 240VAC | United States 120VAC | China 220VAC | Korea 220VAC |
| Bus Connection | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 |
| Isolation Type | None | None | None | None | None | None | None | None | None |
| Number of Serial Channels | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Supported Serial Protocols | RS485#RS422 | RS485#RS422 | RS485#RS422 | RS485#RS422 | RS485#RS422 | RS485#RS422 | RS485#RS422 | RS485#RS422 | RS422#RS485 |
| Operating Temperature Range | — | — | — | — | — | — | — | — | — |
Resources
Support
Request support
You can request repair, schedule calibration, or get technical support. A valid service agreement may be required.
NI Discussion forums
Ask questions, explore solutions, and participate in discussions with other NI Community members.
Knowledgebase
Search for answers to frequently asked questions and troubleshooting tips for common errors written by NI engineers.
Online training
Access hundreds of self-paced lessons, application-focused learning paths, and get started with product set-up tutorials.