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ME838A-R3

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RS-232/RS-485 High-Speed Opto-Isolated Line Driver (LD485A-HS Opto-Isolated), Standalone  

The perfect industrial line driver—speed, surge protection, and optical isolation, too.

ME838A-R3

Extended Double Diamond™ Warranty Available (3 Additional Year)

Product Highlights

  • This line driver is versatile, reliable, and fast enough for use with all your high-speed equipment.
  • Data rates up to 115 kbps for high-speed industrial applications.
  • Surge protection built into RS-485 port.
  • Many user-selectable features.
  • We can customize for your application!


  • Further Details

  • Opto-isolated model for maximum safety.

    The RS-232/RS-485 High-Speed Line Driver is perfect for 4-wire half- or full-duplex applications, or for 2-wire half-duplex, point-to-point, or multipoint applications. And it enables you to link up to 64 devices via twisted-pair cable.

    Because it has selectable settings, you can customize the driver for your application. Set line bias to match RS-485 equipment, such as industrial shipping devices. You can set the RS-485 driver to be enabled either by RS-232 control signals or by data, or to be constantly on. Select normal operation or loopback testing.

    Surge-protection circuitry—transorbes, zener diodes, and inductors—guard the RS-485 side against induced surges. Optical isolation is also available on the ME838A-R3 to protect your data from ground-loop surges and interference caused by industrial machines. A port time-out feature prevents any single port from tying up your network.

    This line driver is transparent to data, and it can transmit data short distances at up to 115 kbps or as far as 4000 feet (6.4 km) at 1200 bps.

    NOTE: Model without opto-isolation also available.

    This product works with:
    • CAT5 100-MHz Solid-Conductor Bulk Cable, 2-Pair (EYN717A)
    • Standard RS-232 Low-Noise Cable, 25-Conductor, Male/Male (ECM25C-MM)
    The ME837C-R3 also works with:
    • 16-Card Rack (RM005)
    Questions? Contact our FREE Tech Support.

  • Distance (Maximum) 4000 ft. (1219.2 m)
    Operation 4-wire half- or full-duplex; 2-wire half-duplex, point-to-point, or multipoint
    Protocol Asynchronous
    CE Approval Yes
    Interface Equipment: RS-232;
    Line: RS-485
    Connectors (1) DB25 F, (1) 4-screw terminal block
    Power 115 VAC, 60 Hz (230-VAC version on request)
    Size 1.8"H x 5.5"W x 8.5"D (4.6 x 14 x 21.6 cm)
    Weight 1.9 lb. (0.9 kg)
    This product works with:
    • CAT5 100-MHz Solid-Conductor Bulk Cable, 2-Pair (EYN717A)
    • Standard RS-232 Low-Noise Cable, 25-Conductor, Male/Male (ECM25C-MM)
    The ME837C-R3 also works with:
    • 16-Card Rack (RM005)
    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 1-800-316-7107.

    Double Diamond Warranty
    Extended Double Diamond™ Warranty Available (3 Additional Year)
    Diamond

    Double Diamond™ Warranty (Standard)

    Coverage:

    Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.


    The Double Diamond Warranty is our warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

    The RS-232/RS-485 High-Speed Opto-Isolated Line Driver (LD485A-HS Opto-Isolated), Standalone comes with a standard 1 Year warranty already included.

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

    Plus, get an Extended Double Diamond Warranty.


    You can also extend your warranty or protect a previously purchased Black Box® brand product** for an additional year—for only 10% of the purchase price! Or, extend your coverage for a full three years for only 20% of the purchase price!

    Ordering an extended warranty is easy: When viewing a product in your shopping cart, just select the one or three years of additional coverage in the dropdown menu under “Warranty Options.” For details, contact Customer Service at 724-746-5500.

    * Warranty subject to certain exclusions and limitations
    ** Certain products may not be eligible.

    What’s more, we also have a 45-day return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.

    Product SKU Price Quantity
    RS-232/RS-485 High-Speed Line Driver (LD485A-HS), Standalone ME837A-R3 $288.85
     
    RS-232/RS-485 High-Speed Line Driver (LD485A-HS) Rackmount Card ME837C-R3 $254.50
     
     

    Add to Cart

    Price: $320.15

    Quantity Available: 3

    Quantity

    Warranty

    Total

    Shipping Info

    In Stock - orders received before 5PM ET ship same day

    Weight: 5 lbs.
    HxWxD: 3 x 3 x 8 in.

    What’s more, we also have a 45-day return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.


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