PCI-8431/4 National Instruments Serial Interface | Apex Waves | Image PCI-8431/4 National Instruments Serial Interface | Apex Waves | Image
PCI-8431/4 National Instruments Serial Interface | Apex Waves | Image
PCI-8431/4 National Instruments Serial Interface | Apex Waves | Image
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PCI-8431-4

Modular Systems > National Instruments > Serial Interface Devices

Part Number PCI-8431-4
Manufacturer/Brand National Instruments
Description PCI-8431/4 4-Port, RS-485/RS-422 Serial Interface Device
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National Instruments PCI-8431/4 Serial Interface

The PCI-8431/4 (Part Number: 778981-01) comes without DMA transfers, so an interrupt is shown by the serial interface every time the FIFO gets a determined level. If the CPU is not capable of processing that interrupt in a matter of time, the instrument will use handshaking (if it is available) to close the data transfer. As a result, the complete throughput is minimized and is typical with smaller FIFOs. The top signal represents the bytes "ABCDEFG" being transferred across the serial interface using DMA. The bottom signal illustrates the results of using switches with a small FIFO. If the CPU receives too much data to transfer to memory, the FIFO fills up and the NI PCI-8431/4 Serial Interface signals the instrument to stop transmitting data while the CPU catches up. As a result, the top signal transfers more data in the same amount of time and therefore has an increase in throughput.

The NI PCI-8431/4 allows the user to simply customize any baud rate between 50 b/s and 2 Mb/s through programming. This is possible through manual configuration by using MAX (Measurement & Automation Explorer) or Windows Device Manager, or the user can programmatically change it through the NI-Serial application programming interface (API).

The NI PCI-8431/4 Serial Interface offers multiprocessor and hyper-threading support, so the user can take advantage of the latest PC technology for higher speeds and better efficiency. Hyper-threading is a technology included in some Intel processors that enables one processor to work as two. To achieve this, the "core" can process two threads of commands at the same time.

PCI-8431/4 Mature Status has been announced by National Instruments, but will still be available for purchase and repairs by Apex Waves.

ModelPCI-8431/4
ManufacturerNational Instruments
Part Number778981-01
TypeRS485/RS422 Serial Interface Device
StandardRS-485 / RS-422
Number of Ports4
IsolatedNo
Maximum Baud Rate3000 kbits/s (3 Mbps)
Connector Type10-Position Modular Jack (10P10C)
FIFO Size128 Bytes
Power Requirements+5 VDC -- 725 mA
Dimensions4.2 in.× 5.6 in.
Weight0.22 lb.
Software DriverNI-Serial
WarrantyOne Year Warranty
PCI-8431/4 ManualUser Manual and Maintenance Manual Available for Download
PriceContact a sales representative for a quote.

PCI-8431-4 Technical Specifications:


Manufacturer:National Instruments
Model:PCI-8431/4
Part Number:778981-01
Type:Serial Interface
Repair Evaluation:$150

Why Buy From Apex Waves

Delivery: UPS, FedEX and DHL – Free UPS Ground on all orders
Overnight, Next Day Air or Expedited shipping options available
International delivery available
Same day shipping for in-stock on location
Warranty: All parts new, new surplus, used or reconditioned are covered by Apex Waves 1 Year Warranty
Returns: No hassle return policy.
Dedicated customer service team.
Payment:
Quick Quotes: Receive Price & Availability Today!
Calibration: Ask About Our Tiered Calibration Levels
Option & Modules: Confirm Your Requirements or Versions
Repair: Cost & Lead Time Available Upon Request for Service
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PCI-8431-4

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PCI-8431/4 4-Port, RS-485/RS-422 Serial Interface Device

Manufacturer:National Instruments
Model:PCI-8431/4
Part Number:778981-01
Type:Serial Interface
Repair Evaluation:$150

National Instruments PCI-8431/4 Serial Interface

The PCI-8431/4 (Part Number: 778981-01) comes without DMA transfers, so an interrupt is shown by the serial interface every time the FIFO gets a determined level. If the CPU is not capable of processing that interrupt in a matter of time, the instrument will use handshaking (if it is available) to close the data transfer. As a result, the complete throughput is minimized and is typical with smaller FIFOs. The top signal represents the bytes "ABCDEFG" being transferred across the serial interface using DMA. The bottom signal illustrates the results of using switches with a small FIFO. If the CPU receives too much data to transfer to memory, the FIFO fills up and the NI PCI-8431/4 Serial Interface signals the instrument to stop transmitting data while the CPU catches up. As a result, the top signal transfers more data in the same amount of time and therefore has an increase in throughput.

The NI PCI-8431/4 allows the user to simply customize any baud rate between 50 b/s and 2 Mb/s through programming. This is possible through manual configuration by using MAX (Measurement & Automation Explorer) or Windows Device Manager, or the user can programmatically change it through the NI-Serial application programming interface (API).

The NI PCI-8431/4 Serial Interface offers multiprocessor and hyper-threading support, so the user can take advantage of the latest PC technology for higher speeds and better efficiency. Hyper-threading is a technology included in some Intel processors that enables one processor to work as two. To achieve this, the "core" can process two threads of commands at the same time.

PCI-8431/4 Mature Status has been announced by National Instruments, but will still be available for purchase and repairs by Apex Waves.

ModelPCI-8431/4
ManufacturerNational Instruments
Part Number778981-01
TypeRS485/RS422 Serial Interface Device
StandardRS-485 / RS-422
Number of Ports4
IsolatedNo
Maximum Baud Rate3000 kbits/s (3 Mbps)
Connector Type10-Position Modular Jack (10P10C)
FIFO Size128 Bytes
Power Requirements+5 VDC -- 725 mA
Dimensions4.2 in.× 5.6 in.
Weight0.22 lb.
Software DriverNI-Serial
WarrantyOne Year Warranty
PCI-8431/4 ManualUser Manual and Maintenance Manual Available for Download
PriceContact a sales representative for a quote.

PCI-8431-4 Technical Specifications:


Manufacturer:National Instruments
Model:PCI-8431/4
Part Number:778981-01
Type:Serial Interface
Repair Evaluation:$150

Why Buy From Apex Waves

Delivery: UPS, FedEX and DHL – Free UPS Ground on all orders
Overnight, Next Day Air or Expedited shipping options available
International delivery available
Same day shipping for in-stock on location
Warranty: All parts new, new surplus, used or reconditioned are covered by Apex Waves 1 Year Warranty
Returns: No hassle return policy.
Dedicated customer service team.
Payment: Authorize.Net paypal visa card master card american express card BB&T Bank better business bureau
Quick Quotes: Receive Price & Availability Today!
Calibration: Ask About Our Tiered Calibration Levels
Option & Modules: Confirm Your Requirements or Versions
Repair: Cost & Lead Time Available Upon Request for Service
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