National Instruments PCI-8433/4

National Instruments PCI-8433/4 Serial Interface Device

The PCI-8433/4 (Part Number: 779146-01, 191874A-02) is a 4-Port National Instruments Serial Interface Device. The maximum baud rate of this device is 3000 kbaud. However, this NI Serial Interface Device supports any baud rate from 2 baud to 3000 kbaud. The NI PCI-8433/4 has 128 bytes FIFO size and a 10P10C connector. The PCI-8433/4 device is compatible with LabVIEW Real-Time and Windows OS. This device can be utilized with RJ-50 male to DSUB 9-pin male cables. This device supports RS-485 and RS-422 serial protocols. As determined in the EIA-485 Standard, Standard for Electrical Characteristics of Generators and Receivers for Use in Balanced Digital Multipoint Systems, RS-485 develops the RS-422 included standard by expanding the quantity of gadgets that can be used from 10 to 32 and by working with half-duplex transport models. Dissimilar to the RS-422 standard, RS-485 solves the issue of utilizing various transmitters on a similar line. The NI device has a power requirement of 785 mA typical and 1.2 A maximum at +5 VDC.

The NI PCI-8433/4 Serial Interface Device comes with a Duplex mode that alludes to the methods for transfer speed used in a serial framework. The two normal methods for bi-directional serial correspondence are full duplex and half duplex. Half-duplex correspondence includes a transmitter and a beneficiary associated with each finish of a similar wire or match of wires. Since a similar transmission line both sends and receives information, gadgets cannot send information in the two bearings in the meantime. Initially, one gadget transmits over the wire(s) to the collector of the second gadget.  When the main gadget completes the process of transmitting, the two gadgets change the associations from their transmitter to their recipient, or the other way around. The gadget that was accepting information would then be able to transmit over the line. In full-duplex communication, the gadgets utilize a different wire (or match of wires) for concurrent transmission toward every path.

The PCI-8433/4 weighs 106 g, and measures 4.2 x 6.9 in. in physical dimensions. It has recommended operating and storage temperature range of 0 to 55 °C and –20 to 70 °C respectively.