Description
The National Instruments PCIe-8433/2 Serial Interface Device, with part number 781745-01, is a robust solution featuring two ports that support RS-422 and RS-485 protocols, making it versatile for various serial communication needs. This device utilizes a male, DB-9 connector and ensures safety with continuous 60 VDC (CAT I) isolation between ports as well as from port to host, coupled with surge protection of up to 2000 Vrms.
Powered directly through the PCI Express channel, it eliminates the need for separate power supplies, requiring 140 mA from the +12 VDC rail (up to a maximum of 240 mA) and 610 mA from the +3.3 VDC rail (up to a maximum of 660 mA). The device’s physical dimensions are a compact 4.38 × 6.6 inches, allowing for easy installation into any compatible PCIe slot.
With support for DMA transfers, this interface device ensures efficient data handling, and it is fully compatible with multi-processor and multithreading PCs, enhancing its integration capabilities. It also boasts a 128 B FIFO size for reliable and accurate data transmission and reception. Furthermore, the PCIe-8433/2 is compatible with RS485 Modbus-based serial PLCs, further extending its application range.
| Feature | Specification |
|---|---|
| Product Name | National Instruments PCIe-8433/2 Serial Interface Device |
| Part Number | 781745-01 |
| Number of Ports | 2 |
| Supported Protocols | RS-422, RS-485 |
| Connector Type | Male, DB-9 |
| Port-to-Port Isolation | 60 VDC (CAT I) continuous |
| Port-to-Host Isolation | 60 VDC (CAT I) continuous |
| Surge Protection | Up to 2000 Vrms |
| Power Source | PCI Express channel |
| Current Requirements | +12 VDC: 140 mA (max 240 mA), +3.3 VDC: 610 mA (max 660 mA) |
| Physical Dimensions | 4.38 × 6.6 in |
| Data Transfer Method | Supports DMA transfers |
| Operating Systems Compatibility | Multi-processor and multithreading PCs |
| FIFO Size | 128 B |
Question 1: What are the electrical isolation specifications and surge protection rating for the National Instruments PCIe-8433/2 Serial Interface Device with part number 781745-01?
Answer 1: The significance of the PCIe-8433/2 interface device’s 60 VDC isolation and 2000 Vrms surge protection is that it ensures a high level of safety for the equipment and data integrity by providing robust protection against electrical noise, voltage spikes, and surges that can occur in industrial environments, thereby preventing damage to the device and the connected system.
Question 2: What is the significance of the PCIe-8433/2 interface device’s 60 VDC isolation and 2000 Vrms surge protection for serial communication safety?
Answer 2: The National Instruments PCIe-8433/2 Serial Interface Device with part number 781745-01 features continuous 60 VDC (CAT I) isolation between ports and from port to host, and it offers surge protection of up to 2000 Vrms.
Question 3: What are the isolation voltage levels and surge protection ratings for the National Instruments PCIe-8433/2 Serial Interface Device with part number 781745-01?
Answer 3: The National Instruments PCIe-8433/2 Serial Interface Device with part number 781745-01 features continuous 60 VDC (CAT I) isolation between ports and from port to host, as well as surge protection of up to 2000 Vrms.
Question 4: What are the electrical isolation and surge protection specifications of the National Instruments PCIe-8433/2 Serial Interface Device with part number 781745-01?
Answer 4: The National Instruments PCIe-8433/2 Serial Interface Device with part number 781745-01 offers continuous 60 VDC (CAT I) isolation between ports and from port to host, and it is equipped with a surge protection rating of up to 2000 Vrms.
Question 5: What are the isolation and surge protection specifications of the National Instruments PCIe-8433/2 Serial Interface Device with part number 781745-01?
Answer 5: The National Instruments PCIe-8433/2 Serial Interface Device with part number 781745-01 features continuous 60 VDC (CAT I) isolation between ports and from port to host, as well as surge protection of up to 2000 Vrms.
