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Serial Interfaces for RS232, RS485, and RS422

National Instruments offers high-quality, reliable serial interfaces for communications with laboratory instruments, industrial devices, and embedded circuits using RS232, RS485, and RS422. NI serial interfaces work on all major PC platforms with a variety of port and isolation options.

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8- and 16-port RS232 and RS485 serial interfaces for PCI Express systems

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Adding RS232 and RS485 serial ports to CompactRIO embedded control systems

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Low-cost, highly flexible 1-, 2-, and 4-port serial interfaces for USB

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Product Results (42)
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1
NI USB-232
1-Port RS232 Interface for USB For price, select country
Ports: 1 · RS-232
Transfer Rate: 230.4 kbits/s
Devices/Port: 1
2
NI USB-485
1-Port RS485/422 Interface for USB For price, select country
Ports: 1 · RS-422 · RS-485
Transfer Rate: 460.8 kbits/s
Devices/Port: 31
3
NI USB-232/2
2-Port RS232 Serial Interface for USB For price, select country
Ports: 2 · RS-232
Transfer Rate: 230.4 kbits/s
Devices/Port: 1
4
NI USB-485/2
2-Port RS485/422 Serial Interface for USB For price, select country
Ports: 2 · RS-422 · RS-485
Transfer Rate: 460.8 kbits/s
Devices/Port: 31
5
NI USB-232/4
4-Port RS232 Interface for USB For price, select country
Ports: 4 · RS-232
Transfer Rate: 230.4 kbits/s
Devices/Port: 1
6
NI USB-485/4
4-Port RS485/422 Serial Interface for USB For price, select country
Ports: 4 · RS-422 · RS-485
Transfer Rate: 460.8 kbits/s
Devices/Port: 31
7
NI PXI-8433/2 (RS485/RS422)
High-Performance, Isolated 2-Port Serial Interface For price, select country
Ports: 2 · RS-422 · RS-485
Transfer Rate: 3 Mbits/s
Devices/Port: 31
8
NI PXI-8431/2 (RS485/422)
High-Performance, 2-Port RS485/422 Serial Interface for PXI For price, select country
Ports: 4 · RS-422 · RS-485
Transfer Rate: 1.842 Mbits/s
Devices/Port: 31
9
NI PXI-8430/2 (RS232)
High-Performance, 2-Port RS232 Serial Interface for PXI For price, select country
Ports: 2 · RS-232
Transfer Rate: 1 Mbits/s
Devices/Port: 1
10
NI PXI-8433/4 (RS485/RS422)
High-Performance, Isolated 4-Port Serial Interface for PXI For price, select country
Ports: 4 · RS-422 · RS-485
Transfer Rate: 3 Mbits/s
Devices/Port: 31
11
NI PXI-8432/4 (RS232)
High-Performance, Isolated 4-Port Serial Interface for PXI For price, select country
Ports: 4 · RS-232
Transfer Rate: 1000 kbits/s
Devices/Port: 1
12
NI PXI-8431/4 (RS485/422)
High-Performance, 4-Port Serial Interface for PXI For price, select country
Ports: 4 · RS-422 · RS-485
Transfer Rate: 3 Mbits/s
Devices/Port: 31
13
NI PXI-8430/4 (RS232)
High-Performance, 4-Port Serial Interface for PXI For price, select country
Ports: 4 · RS-232
Transfer Rate: 1 Mbits/s
Devices/Port: 1
14
NI PXI-8431/8 (RS485/RS422)
High-Perferformance, 8-Port Serial Interface for PXI For price, select country
Ports: 8 · RS-422 · RS-485
Transfer Rate: 3 Mbits/s
Devices/Port: 31
15
NI PXI-8430/8 (RS232)
High-Performance, 8-Port Serial Interface for PXI For price, select country
Ports: 8 · RS-232
Transfer Rate: 1 Mbits/s
Devices/Port: 1
16
NI PXI-8430/16 (RS232)
High-Performance, 16-Port Serial RS232 Interface for PXI For price, select country
Ports: 16 · RS-232
Transfer Rate: 1 Mbits/s
Devices/Port: 1
17
NI PCI-8433/2 (Industrial RS485/RS422)
High-Performance, Isolated 2-Port Serial Interface for PCI For price, select country
Ports: 2 · RS-422 · RS-485
Transfer Rate: 3 Mbits/s
Devices/Port: 31
18
NI PCI-8432/2 (Industrial RS232)
High-Performance, Isolated 2-Port Serial Interface for PCI For price, select country
Ports: 2 · RS-232
Transfer Rate: 1 Mbits/s
Devices/Port: 1
19
NI PCI-8431/2 (RS485 and RS422)
High-Performance 2-Port Serial Interface for PCI For price, select country
Ports: 2 · RS-422 · RS-485
Transfer Rate: 3 Mbits/s
Devices/Port: 31
20
NI PCI-8430/2 (RS232)
High-Performance 2-Port Serial Interface for PCI For price, select country
Ports: 2 · RS-232
Transfer Rate: 1 Mbits/s
Devices/Port: 1
21
NI PCI-8433/4 (Industrial RS485/RS422)
High-Performance, Isolated 4-Port Serial Interface for PCI For price, select country
Ports: 4 · RS-422 · RS-485
Transfer Rate: 3 Mbits/s
Devices/Port: 31
22
NI PCI-8432/4 (Industrial RS232)
High-Performance, Isolated 4-Port Serial Interface for PCI For price, select country
Ports: 4 · RS-232
Transfer Rate: 1 Mbits/s
Devices/Port: 1
23
NI PCI-8431/4 (RS485 and RS422)
High-Performance 4-Port Serial Interface for PCI For price, select country
Ports: 4 · RS-422 · RS-485
Transfer Rate: 3 Mbits/s
Devices/Port: 31
24
NI PCI-8430/4 (RS232)
High-Performance 4-Port Serial Interface for PCI For price, select country
Ports: 4 · RS-232
Transfer Rate: 1 Mbits/s
Devices/Port: 1
25
NI PCI-8431/8 (RS485 and RS422)
High-Performance 8-Port Serial Interface for PCI For price, select country
Ports: 8 · RS-422 · RS-485
Transfer Rate: 3 Mbits/s
Devices/Port: 31
26
NI PCI-8430/8 (RS232)
High-Performance 8-Port Serial Interface for PCI For price, select country
Ports: 8 · RS-232
Transfer Rate: 1 Mbits/s
Devices/Port: 1
27
NI PCI-8430/16 (RS232)
High-Performance 16-Port RS232 Serial Interface for PCI For price, select country
Ports: 16 · RS-232
Devices/Port: 1
28
NI ENET-232/2
2-Port Ethernet Interface for RS232 For price, select country
Ports: 2 · RS-232
Transfer Rate: 230.4 kbits/s
Devices/Port: 1
29
NI ENET-485/2
2-Port Ethernet Interface for RS485/RS422 For price, select country
Ports: 2 · RS-422 · RS-485
Transfer Rate: 460.8 kbits/s
Devices/Port: 31
30
NI ENET-232/4
4-Port Ethernet Interface for RS232 For price, select country
Ports: 4 · RS-232
Transfer Rate: 230.4 kbits/s
Devices/Port: 1
1-30 of 42
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