USB-485/4

Starting at $1,165.00
Part number(s):
778476-64
778476-74
778476-54
778476-24
778476-34
778476-44
778476-14
778476-94
778476-104

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

778476-54

778476-24
778476-34

778476-44

778476-14

778476-94

778476-104

NI Lead Time
6-7 weeks
6-7 weeks
6-7 weeks
16-17 weeks
6-7 weeks
6-7 weeks
6-7 weeks
6-7 weeks
6-7 weeks
Supported Power Input
United Kingdom 240VAC
Japan 100VAC
North America 240VAC
Swiss 220VAC
Australia 240VAC
Universal Euro 240VAC
United States 120VAC
Korea 220VAC
China 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
RS422#RS485
RS485#RS422
Operating Temperature Range









Maximum Baud Rate









Front Connection Type
D-SUB(4)
D-SUB(4)
D-SUB(4)
D-SUB(4)
D-SUB(4)
D-SUB(4)
D-SUB(4)
D-SUB(4)
D-SUB(4)
Number of Bidirectional Digital Channels









Product Description
USB-485/4, 4-Port USB to RS-485 Converter, United Kingdom 240Vac
USB-485/4, 4-Port USB to RS-485 Converter, Japan, 100V
USB-485/4, 4-Port USB to RS-485 Converter, North American 240Vac
USB-485/4, 4-Port USB to RS-485 Converter, Swiss 220Vac
USB-485/4, 4-Port USB to RS-485 Converter, Australian 240Vac
USB-485/4, 4-Port USB to RS-485 Converter, Universal EURO 240Vac
USB-485/4, 4-Port USB to RS-485 Converter, US 120Vac
USB-485/4, 4-PORT USB TO RS-485 CONVERTER, KOREA 220VAC
USB-485/4, 4-PORT USB TO RS-485 CONVERTER, CHINA 220VAC

Support