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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.
| Series |
Plug-In Controllers
External Controllers
| Series |
Interface |
Ports |
Serial Standard |
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| NI USB-232 |
USB |
1, 2, 4 |
RS232 |
More detail |
| NI USB-485 |
USB |
1, 2, 4 |
RS485, RS422 |
More detail |
| NI ENET-232/2 |
Ethernet |
2 |
RS232 |
More detail |
| NI ENET-485/4 |
Ethernet |
4 |
RS485, RS422 |
More detail |
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