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    BLACKBOX-SW421A-R3 Code-Operated Switch, RS-422, 4-Port 4對1 RS-422 Code-Operated切換器
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    商品編號: BLACKBOX-SW421A-R3

    BLACKBOX-SW421A-R3 Code-Operated Switch, RS-422, 4-Port 4對1 RS-422 Code-Operated切換器

    Control up to four serial RS-422 devices from your PC.

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    ★★★★商品說明★★★★

    Description

    Code-Operated Switch, RS-422, 4-Port


    Quick Facts

  3. Switch your serial devices with codes.
  4. Supports speeds to 76.8 kbps.
  5. Keeps your connection safe—once a connection is made, other ports are locked out.
  6. Upgraded platform with improved functional flexibility, including integrated transceiver loopback for faster fault detection.

    7. 　

    Further Details

  7. DTE/DCE-selectable, so you can switch between a modem and a printer. There’s no need for crossover cables.
  8. Safe for use with laser printers.
  9. Includes a hardware-handshake lead in each direction for added control.
  10. No unintended triggering—no matter what data you’re sending.
  11. Also available with 8 ports.
    The integrated Code-Operated Switch, RS-422, 4-Port is an asynchronous RS-422 switch with 4 subordinate ports and one master port that enables you to switch serial devices with codes.

    There’s no unintended triggering with this switch—no matter what data you’re sending. With an internal DIP switch, you select the arming character to use as a trigger.

    You can set each port individually as DTE or DCE. That’s handy for switching among modems and printers. And your connection is secure. Once a connection is made, other ports are locked out. (Remember that all ports need to be set to operate with identical speeds and word structures.)

    For extra control, there’s a hardware-handshake lead in each direction in case a device (or the computer) needs it.

    The upgraded switch platform has several new features, including:
    　
  12. Integrated transceiver loopback for faster fault isolation.
  13. Enhanced front-panel LED display to provide visual indication of more switch operations, including status of data activity, switch time, port lockout, and control handshake.
  14. Power-on initialization that includes port selection default.
  15. Onboard programmable PROM to provide function updates and maintenance via active serial and JTAG connections.

    This product works with:
    　
  16. DB25 Interface Cable, Custom Lengths (BC00706)Questions? Contact our FREE Tech Support.
    　

    17. Technical Specifications for Code-Operated Switch, RS-422, 4-Port:

    Data Format — 5 to 8 bits
    Speed — 300 bps to 76.8 kbps
    Switches — Text/Transparent/Graphics Mode; Reset
    CE Approval — Yes
    Interface — RS-422 async
    Connectors — (5) DB25 F
    Indicators — (1) 7-segment channel-selected display, (2) lockout and switch time LEDs
    Power — 115/230 VAC, 60/50 Hz, 11 watts (switch-selectable)
    Size — 2.5"H x 12.25"W x 11.75"D (6.4 x 31.1 x 29.8 cm)
    Weight — 4 lb. (1.8 kg)
     

    This product works with:
    　
  17. DB25 Interface Cable, Custom Lengths (BC00706)Questions? Contact our FREE Tech Support.
    　
    18.