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    BLACKBOX-IC114A-R2 PCMCIA Async Serial I/O Adapter, Single-Port, RS-422/485, 16550 UART 1埠非同步RS-422/485 PCMCIA介面卡, 16550 UART
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    商品編號: BLACKBOX-IC114A-R2

    BLACKBOX-IC114A-R2 PCMCIA Async Serial I/O Adapter, Single-Port, RS-422/485, 16550 UART 1埠非同步RS-422/485 PCMCIA介面卡, 16550 UART

    Get more mobility with an extra comm port.

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    ★★★★商品說明★★★★

    Description

    PCMCIA Async Serial I/O Adapter, Single-Port, RS-422/485, 16550 UART


    Quick Facts

  3. Has a 16550 UART.
  4. Add a serial port to your laptop computer and really go to work.
  5. Control/automate RS-422/485 devices without being tied to your desk.
  6. RS-422/485 distances to 4000 feet (1219.2 m).

    7. 　

    Further Details

  7. Complies fully with PCMCIA Type II specs.
  8. Supports all major card and socket services software.
  9. Drivers are included for Windows® 95/98/Me/XP, Windows NT®, and Windows 2000.
  10. Also work with all other PCMICA-compatible operating systems, including DOS, Linux®, and QNX.
  11. Includes (1) DB25 male to PCMCIA Type II dongle interface cable and a utility disk for diagnostics.
  12. Cable has locking connectors to prevent accidental disconnects.

    13. Technical Specifications for PCMCIA Async Serial I/O Adapter, Single-Port, RS-422/485, 16550 UART:

    Communications Chip — (1) 16550 UART
    Hardware Requirements — PC, notebook, or laptop with a PCMCIA Type II slot and a 3.5" floppy drive
    Protocol — Async
    Speed — Up to 115.2 kbps
    CE Approval — Yes
    Connectors — Interface cable (included): DB25 M to PCMCIA Type II dongle
    Size — PCMCIA Type II


    ★★★★商品規格描述★★★★

    Black Box Explains...UARTs at a glance..

    Universal Asynchronous Receiver/Transmitters (UARTs) are integrated circuits that convert bytes from the computer bus into serial bits for transmission. By providing surplus memory in a buffer, UARTs help applications overcome the factors that can hinder system performance, providing maximum throughput to high-performance peripherals without slowing down CPUs.

    Early UARTs such as 8250 and 16450 did not include buffering (RAM or memory). With the advent of higher-speed devices, the need for UARTs that could handle more data became critical. The first buffered UART was the 16550, which incorporates a 16-byte First In First Out (FIFO) buffer and provides greater throughput than its predecessors.

    Manufacturers have been developing enhanced UARTs that continue to increase performance standards. These faster chips provide improvements such as larger buffers and increased speeds. Here are the rates of today’s common UARTs:

    UART FIFO Buffer Rate Supported
    16550 16-byte 115.2 kbps
    16554 16-byte 115.2 kbps
    16650 32-byte 460.8 kbps (burst rate)
    16654 64-byte 460.8 kbps (burst rate)
    16750 64-byte 460.8 kbps (burst rate)
    16850 128-byte 460.8 kbps (sustained rate)
    16854 128-byte 460.8 kbps (sustained rate)