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Datacom > Modems & CSUs

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ME251A-R3

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Synchronous Modem Eliminator (SME-4M) for RS-232, Standalone  

IBM compatibility and sync or async operation.

ME251A-R3

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

Product Highlights

  • Connect equipment up to 100 feet (30.4 m) apart.
  • Provides clocking to both DTEs.
  • Operates in either sync or async modes.

  • Description

    SME-4M (for RS-232), 38.4 kbps Standalone


    Quick Facts

  • Connect equipment up to 100 feet (30.4 m) apart.
  • Provides clocking to both DTEs.
  • Operates in either sync or async modes.

  • Further Details

  • Runs at 38.4 kbps.
  • Operates full- or half-duplex.
  • Has two DB25 connectors and six LEDs (TX, CTS, and DSR for each of the two ports).

  • We’ve tailored our SME-4M for your IBM equipment. Use it to regenerate the RS-232 signals, so you can send data up to 100 feet (30.4 m). Then you can put your sync (or async) devices where you want them.

    Use the SME-4M to provide clocking to your system, instead of a pair of modems or line drivers to connect controllers or other systems to your front-end processor. You can monitor the operating status easily with a glance at the front-panel LEDs.

    Because the SME-4M is so small and lightweight, it minimizes logistics problems and simplifies installation and replacement in the field. No special tools are required either. It’s definitely designed for do-it-yourself installation.


    Technical Specifications for Synchronous Modem Eliminator (SME-4M) for RS-232, Standalone:

    Distance — Up to 100 ft. (30.4 m) total
    Operation — Full- or half-duplex
    Protocol — Synchronous or asynchronous
    Speed — 38.4 kbps
    Interface — RS-232
    Connectors — (2) DB25 F
    Indicators — (6) LEDs: TX, CTS, DSR for each of the two ports
    Power — 115 VAC, 60 Hz (230-VAC version on request)
    Size — 1.8"H x 5.5"W x 8.6"D (4.6 x 14 x 21.8 cm)
    Weight — 2 lb. (0.9 kg)
    These products work with:
  • RS-232 Cable, 25-Conductor, Male/Male (ECM25C)
    The ME251C-R3 works with:
  • 12-Card Rack (RM008).
    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.

  • Resources for Synchronous Modem Eliminator (SME-4M) for RS-232, Standalone:


    Connect your Synchronous Modem Eliminator (SME-4M) for RS-232, Standalone with:

    Accessory: ECM25T-0010-MM

    Standard RS-232 Low-Noise Cable, 25 Conductors—Pins 1–25, Male/Male, 10-ft. (3.0-m)

    Standard RS-232 Low-Noise Cable, 25 Conductors—Pins 1–25, M/M, 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: $32.00

    Extended Three years for two Warranty Available


    Protect your purchase with an additional Three years for twoDouble Diamond™ warranty!
    Cost: $63.99

    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! $$$
    You can find this product in the following subcategory(s)
     

    Add to Cart

    Price: $319.95

    Quantity

    Warranty

    Total

    In Stock

    Shipping Info

    In Stock - orders received before 8PM ET ship same day


    45-day return policy


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