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Isolation Zones Explained

Isolation zones explained

Isolated serial card design requires attention to three things. Special optocouplers isolate the serial signals from the PCI bus. Unique isolated DC-to-DC power supplies provide power to each of the ports and give us port-to-port isolation. Finally, the circuit board uses strict spacing rules — we call these isolation zones. Surges follow the path of least resistance, and a tiny gap between traces is an easy path for surges to reach the delicate computer bus, bypassing expensive isolation components entirely. You’ll find wide isolation zones on B&B’s isolated PCI cards. If you’re buying boards from someone else, hold them up to the light and check for these isolation zones, you might not be getting the protection that you’re paying for.

Don't forget to check out our Non-Isolated Multi-Inteface PCI cards.

 
Home > Products > Serial Connectivity > Serial Cards > MIPort Isolated Universal PCI Cards

 

One to Four Port RS-232/422/485 Cards – Optically Isolated Models

Unique Benefits:

  • Available in 1, 2 or 4 ports
  • Optically isolated models
  • Multi-Interface: RS-232/422/485 selectable
  • 5V and 3.3V PCI bus compatible
  • PCI-X compatible
  • Positive-connecting DB9M ports

    • Ideal for:

  • Industrial monitoring and control
  • SCADA
  • POS
  • Medical
  • Security

    • 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.

    Isolation Zones on the 3PCIOU2

    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 optocouplers and our unique isolated DC-DC converter design protect your PCs from voltage surges and ground loops.

    DB9M connectors offer positive thumbscrew locking, more robust than phone jack connectors. Four and eight port models include fanout cables. Four port isolated model 3PCIOU4 has two RS-232/422/485 ports and 2 RS-422/485 ports. All models support baud rates up to 460.8 kbps. Windows ME, NT4.0, 2000, XP and Linux supported.

     

    Model Number Ports Interface Connector   Price
    3PCIOU1
    		1 RS-232/422/485 DB9 Male  
    $220.00

    3PCIOU2
    		2 RS-232/422/485 DB9 Male  
    $319.00

    3PCIOU4
    		4 2 Ports RS-232/422/485
    2 Ports RS-422/485    		 2x DB9 Male on card
    2x DB9 Male use 2nd expansion slot
    (ribbon cables and bracket included)    		  
    $495.00

     

     

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