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Datacom > Switches

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SW421A-R3

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

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

SW421A-R3

Extended Double Diamond™ Warranty Available
(Three years for two)

Product Highlights

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

  • Description

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


    Quick Facts

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

  • Further Details

  • DTE/DCE-selectable, so you can switch between a modem and a printer. There’s no need for crossover cables.
  • Safe for use with laser printers.
  • Includes a hardware-handshake lead in each direction for added control.
  • No unintended triggering—no matter what data you’re sending.
  • 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:
  • Integrated transceiver loopback for faster fault isolation.
  • 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.
  • Power-on initialization that includes port selection default.
  • Onboard programmable PROM to provide function updates and maintenance via active serial and JTAG connections.


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


    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:
  • DB25 Interface Cable, Custom Lengths (BC00706)
  • Questions? Contact our FREE Tech Support.


    NOTE: Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 877-877-2269.


    Connect your Code-Operated Switch, RS-422, 4-Port with:

    Accessory: BC00706

    DB25 Extension Cable, DB25 Male, DB25 Male, 10-ft. (3.0-m)

    DB25 Extension Cable, DB25 Male, DB25 Male, 10-ft. (3.0-m)

    Double Diamond Warranty

    Standard Manufacturer's Warranty


    A One year warranty is included.

    Extended Two years for one Warranty Available


    Protect your purchase with an additional Two years for oneDouble Diamond™ warranty!
    Cost: $69.60

    Extended Three years for two Warranty Available


    Protect your purchase with an additional Three years for twoDouble Diamond™ warranty!
    Cost: $139.19

    Diamond

    Double Diamond™ Warranty (Standard)

    Coverage:

    The most complete product warranty exclusively from Black Box

    The Double Diamond™ Warranty is our no-questions-asked warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

    Most products come with a one- or two-year warranty. Some products, such as copper cables, manual switches, cabinets, and racks, are guaranteed for life! Standard Warranty features are as follows:

    Worry-Free Purchases

    If your new Black Box® brand products are accidentally damaged, you're covered with this no-questions asked warranty. FREE

    Coverage

    Double Diamond™ is the standard warranty that comes with your new Black Box® brand product. Most products come with a one- or two-year warranty.

    Lifetime Guarantees

    Many products, such as copper cables, manual switches, cabinets, and racks, are guaranteed for life.

    Fast Service

    During the warranty period, Black Box® Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!

    Extra Coverage

    Extend your warranty or protect a previously purchased Black Box® brand product* for an additional year for only 10% of the current retail price! And when you do, we give you the second year of extended coverage free! FREE Tech Support Hotline. No cost. No contracts. No kidding!

    No-Risk 45-Day Return Policy

    If it's not right, send it back.
    (Excludes custom built products)

    * Certain products may not be eligible.

    Warranty Compared

    Black Box® Double Diamond™ Warranty The Competition
    Warranty Length One Year to Lifetime, Depending on the Product. Read the fine print.
    Guaranteed for Life! Black Box® Brand Copper Cables, Manual Switches and More! No.
    Accidental Damage 100% Covered! No.
    Water Damage 100% Covered! No.
    Power Surges 100% Covered! No.
    Warranty Replacements No Questions Asked! Forget It.
    Tech Support Hotline 100% FREE! $$$
    Product SKU Price Quantity
    Code-Operated Switch, RS-422, 4-Port SW421A-R3 $695.95
     
    Code-Operated Switch, RS-232, 4-Port SW853A-R3 $575.95
     
    Code-Operated Switch, RS-232, 8-Port SW854A-R3 $839.95
     
    You can find this product in the following subcategory(s)
     

    Add to Cart

    Price: $695.95

    Quantity

    Warranty

    Total

    Shipping Info

    Usually Ships in 3-5 days


    45-day return policy


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