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technical help?
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white papers and application notes on RS-232, RS-422 and RS-485
communications to make you an expert too.
Visit our technical library
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on serial and data communications and would be happy to talk
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Serial Cards
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B&B Electronics' PCI, PCMCIA, CF and ISA cards can be used to add ports to any system. From multi Ports, RS-232/422/485 interface, optically isolated, to adding a serial or parallel port to your laptop. B&B Electronics has you covered.
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Isolated Multi-Interface PCI
Optically Isolated Versions offer true 2000VDC isolation and port-to-port isolation. Compare B&B cards to others – B&B’s premium Optical Isolation Zone along with opto couplers and our unique isolated DC-DC converter design, protect your PCs from voltage surges and ground loops.
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Multi-Interface PCI
New Universal PCI Cards suit most any application! Output can be RS-232, RS-422, or RS-485. Use RS-422 to extend range, RS-485 to extend range and provide multi-drop ability.
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Low Profile PCI
B&B Electronics Low Profile PCI cards feature 1 to 4-port availability, RS-232/422/485 models and more. Including standard PCI (full-height) bracket.
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PCMCIA (PC Card)
Add serial or parallel ports to your laptop. All models support WIN 95, 98, ME, NT, 2000, XP, CE, Linux and OS/2 and pocket PC.
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ExpressCards
Add a serial or parallel port to your mobile device by using one of these ExpressCards with the compact ExpressCard/34 form factor
ExpressCards
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ISA Cards
Need serial cards for the ISA bus? Many industrial PCs still use them and we're happy to say B&B Electronics continues to support and stock ISA cards.
These card models can be configured for any I/O address and IRQ. Each port can be independently configured for RS-232, RS-422, or RS-485 data protocol. Each also has the popular RS-485 Automatic Send Data Control feature to transparently enable and disable the RS-485 transmitter as needed. Each port uses a buffered, high speed 16550A UART.
2-port RS-232/422/485 ISA serial card
1-Port Isolated RS-232/422/485 Serial Card w/16550A
2-Port Isolated RS-232/422/485 Serial Card w/16550A
4-port RS-232/422/485 ISA serial card
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