Description
The National Instruments PCIe-8431/16 Serial Interface Device, with part number 780592-02, supports RS422 and RS485 communication protocols and offers flexible transceiver modes, including both 2-wire and 4-wire configurations for half and full-duplex communications. Equipped with two 68-pin VHDCI connectors and 16 ports, this device is capable of achieving a maximum baud rate of 3000.0 kbaud, which can be modified to 2000 kbaud when operating in 2-wire auto control mode. Designed in a PCI Express form factor, the device measures 4.38 × 6.9 inches in size and weighs approximately 101 grams.
In typical usage scenarios, it requires 400 mA at +3.3 VDC and 210 mA at +12 VDC power supply. The PCIe-8431/16 is known for its precision, offering better than 0.5% accuracy for nonstandard baud rates and an impressive 0.015% accuracy for standard baud rates, distinguishing it from comparable products. Additionally, it supports operation of multiple units in parallel, enhancing its application scope in various industrial and research settings.
| Specification | Detail |
|---|---|
| Product Name | National Instruments PCIe-8431/16 Serial Interface Device |
| Part Number | 780592-02 |
| Communication Protocols | RS422, RS485 |
| Transceiver Modes | 2-wire and 4-wire for half and full-duplex communications |
| Connector Type | Two 68-pin VHDCI |
| Number of Ports | 16 |
| Maximum Baud Rate | 3000.0 kbaud |
| Maximum Baud Rate with 2-wire Auto Control | 2000 kbaud |
| Form Factor | PCI Express |
| Physical Dimensions | 4.38 × 6.9 in. |
| Weight | Approx. 101 grams |
| Power Requirements (Typical) | 400 mA at +3.3 VDC; 210 mA at +12 VDC |
| Accuracy for Nonstandard Baud Rates | Better than 0.5% |
| Accuracy for Standard Baud Rates | 0.015% |
Question 1: What communication protocols does the National Instruments PCIe-8431/16 Serial Interface Device support and what is its maximum baud rate?
Answer 1: When the National Instruments PCIe-8431/16 Serial Interface Device is switched from its default mode to 2-wire auto control mode, the maximum baud rate is modified from 3000.0 kbaud to 2000 kbaud.
Question 2: What is the change in maximum baud rate when the National Instruments PCIe-8431/16 Serial Interface Device is switched from its default mode to 2-wire auto control mode?
Answer 2: The National Instruments PCIe-8431/16 Serial Interface Device supports RS422 and RS485 communication protocols and has a maximum baud rate of 3000.0 kbaud.
Question 3: What are the dimensions and weight of the National Instruments PCIe-8431/16 Serial Interface Device with part number 780592-02?
Answer 3: The typical power requirements for the National Instruments PCIe-8431/16 Serial Interface Device are 400 mA at +3.3 VDC and 210 mA at +12 VDC.
Question 4: What is the maximum baud rate of the National Instruments PCIe-8431/16 Serial Interface Device when configured in 2-wire auto control mode?
Answer 4: The maximum baud rate of the National Instruments PCIe-8431/16 Serial Interface Device when configured in 2-wire auto control mode is 2000.0 kbaud.
Question 5: What are the electrical power requirements for typical usage of the National Instruments PCIe-8431/16 Serial Interface Device?
Answer 5: The National Instruments PCIe-8431/16 Serial Interface Device with part number 780592-02 measures 4.38 × 6.9 inches and weighs approximately 101 grams.
