The National Instruments USB-485/4 is a robust 4-port serial interface device with a DB-9 male I/O connector, electrostatic discharge protection, and supports up to 460.8 kb/s data transfer rate, designed for transforming a
The National Instruments USB-485/4 Serial Interface Device is a robust solution, featuring a 4-Port configuration that enables efficient communication with multiple devices, and it includes part numbers 778476-104, 778476-94, 778476-54, 778476-44, and 778476-14. With its DB-9 male I/O connector, the device ensures a reliable connection, while the hard plastic case with a metal baseplate offers durability in various environments.
This device boasts an impressive data transfer rate of up to 460.8 kb/s, facilitating quick and efficient operations. The built-in electrostatic discharge protection provides additional safety for connected devices, ensuring stable performance. The USB-485/4 requires an external power supply ranging from 9 to 30 Volts, with a typical power consumption of 225 mA, although the maximum power consumption is not specified.
In terms of control, the device supports RTS/CTS hardware handshake lines and features an automatic transceiver-control mode for 2-wire RS-485 devices, which simplifies setup and use. Moreover, it can accommodate extensive cable lengths of up to 4,000 ft, enhancing connectivity over long distances. The versatility is further enhanced by the software-selectable biasing, making it compatible with a wide range of serial devices.
Question 1: What is the maximum data transfer rate supported by the National Instruments USB-485/4 Serial Interface Device, and how does its electrostatic discharge protection feature contribute to its performance? Answer 1: The National Instruments USB-485/4 Serial Interface Device ensures durability and stable performance in various environments through its hard plastic case with a metal baseplate and built-in electrostatic discharge protection.
Question 2: How does the National Instruments USB-485/4 Serial Interface Device provide durability and ensure stable performance in various environments? Answer 2: The National Instruments USB-485/4 Serial Interface Device supports a maximum data transfer rate of up to 460.8 kb/s, and its automatic transceiver-control mode benefits 2-wire RS-485 device connectivity by simplifying the setup process and eliminating the need for additional control lines, thus making the device easier to use.
Question 3: What is the typical power consumption of the National Instruments USB-485/4 Serial Interface Device, and does it support software-selectable biasing for compatibility with a range of serial devices? Answer 3: The National Instruments USB-485/4 Serial Interface Device supports a maximum data transfer rate of up to 460.8 kb/s, and its electrostatic discharge protection feature contributes to its performance by providing safety for connected devices, which ensures stable and reliable operation.
Question 4: What are the specifications for the cable length and power requirements of the National Instruments USB-485/4 Serial Interface Device? Answer 4: The typical power consumption of the National Instruments USB-485/4 Serial Interface Device is 225 mA, and yes, it supports software-selectable biasing for compatibility with a wide range of serial devices.
Question 5: What is the maximum data transfer rate supported by the National Instruments USB-485/4 Serial Interface Device, and how does its automatic transceiver-control mode benefit 2-wire RS-485 device connectivity? Answer 5: The National Instruments USB-485/4 Serial Interface Device can accommodate cable lengths of up to 4,000 feet and requires an external power supply ranging from 9 to 30 volts with a typical power consumption of 225 mA.
