• The Black Box Store
  • Welcome
  • Talk to an Expert
    Close
    Get answers
    from an Expert any way you want.


    Helping our customers find exactly what they need is what makes Black Box different.

    Reach us any way you want.



    We'll call you

    A technical expert will call you in 30 seconds. It's live and it's free.



    (

    (U.S. and Canada Only)

    Reach us by telephone
    724.746.5500
    Answered in 30 seconds or less!


    Send us a Fax
    800.321.0746
    Answered in 15 minutes or less!


    Send an e-mail
    Shoot us an email and we will answer in 60 minutes or less!


  • Account
  • View Cart

Search Tips...

Keyword Search
Our search engine uses any or all keywords typed in the text box to give you product search results.
For instance, typing in kvm will give you a broader set of results than kvm switch cables.

Note, however, that keywords in quotes are treated as a single phrase and will not be evaluated individually.

Booleans (AND, +, OR, NOT, -) are not supported.

Also, some keywords will not return results, and may automatically correct to a similar keyword.

Part Number Search Selection
Select this Search in the drop down box to search by part number instead of keywords.

Wild Card Search
The * character is only supported in a limited capacity. Using whole words is the best approach whenever possible.

"New Search" Radio Button
Search the entire section that you are currently in.

"Search Within Results" Radio Button
Enter keywords or a part number to limit your results within the previously searched results.


Other features

A list of all matching product categories or resources will appear in the upper left corner of the results page, when applicable, to help you further narrow your results, if you desire.

Use the "sort by" drop-down menu on the results page to sort by "most popular" and price (low to high or high to low)
in the store section.


Need technical advice? Call 1-877-877-2269 for an expert in less than 30 seconds.

Datacom > Modems & CSUs

click photo to enlarge

MT190A

Photo may show similar product

Other views

Smart 64K CSU/DSU, 120-VAC  

Get in the loop for quick and complete line analysis.

MT190A

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

Product Highlights

  • Built-in test-pattern generator quickly tests network faults with BERT functionality.

  • Description

    Smart 64K CSU/DSU, 120-VAC


    Quick Facts

  • Built-in test-pattern generator quickly tests network faults with BERT functionality.

  • Further Details

  • Easy-to-read, front-panel LCD provides “plain English” readouts of line conditions.
  • DDS and sync DTE data rates up to 64 kbps! Async DTE data rates to 57.6 kbps!
  • VDC models can operate at up to 158° F (70° C).
  • Models available for 120 VAC, 24–48 VDC, and 130 HVDC!
  • Error LEDs indicate line impairments.
  • Test and report problems to your service provider in minutes!

    Need comprehensive, comprehensible line analysis? Get a Smart 64K CSU/DSU.

    Error LEDs display line errors as they occur. Then a Digital Signal Processor diagnoses the problems and displays the results on the front-panel LCD, giving you clear, easy-to-understand answers about line attenuation, background noise, impulse noise, bipolar violations, looped conditions, and DDS operating mode. Network optimization, management information, data quality, and seal-current reversal keep your service provider responsive. And a built-in telco line tester enables you to test and report line impairments accurately in just minutes.

    These CSU/DSUs transmit full-packet data over standard DDS lines at async rates up to 57.6 kbps or sync rates up to 64 kbps. Plus, you get real-time statistics on the data port, DDS line, and Frame Relay—and management information on Frame Relay packets as a percentage of utilization.

    You get outstanding performance—even on DDS circuits that may be out of spec!

    Two models are available. The MT190A includes a 120-VAC, 60-Hz external power supply. For applications requiring DC power or tolerance to high temperatures, choose our MT190A-D48. Our 24–48-VDC model is ideal for telcos. Both units can operate in temperatures up to 158° F (70º C).

    When it comes to line analysis, you have to get smart—with our Smart 64K CSU/DSUs.

    These products work with:
    • RS-232 Cable, 25-Conductor, Male/Male (ECM25C)
    • V.35 Interface Cable, Male/Male (EYN450-MM)
    Questions? Contact our FREE Tech Support.


  • Technical Specifications for Smart 64K CSU/DSU, 120-VAC:

    DDS Data Rate — 2400, 4800, and 9600 bps; 19.2, 56, and 64 kbps
    Diagnostics — Operational line testing: In spec/out of spec;
    Parametric testing (± -0.5 dBm): Line attenuation, background noise, impulse noise
    DTE Data Rate — Async: 1200, 2400, 4800, and 9600 bps; 19.2, 38.4, 56, and 57.6 kbps;
    Sync: 300, 600, 1200, 2400, and 4800 bps; 14.4, 19.2, 28.8, 38.4, 56, and 64 kbps
    Line Type — DDS
    Loopback — Digital loop, local loop, remote loop, CSU, DSU
    Protocol — Sync or async
    Connectors — Line: (1) 4-wire RJ-48S;
    Data ports: (1) DB25 F (DCE), (1) M/34 F (DCE)
    Power — MT190A: 120-VAC, 60-Hz, 30-W external transformer;
    MT190A-D48: 24–48-VDC external transformer
    Size — 1.8"H x 8.6"W x 8.4"D (4.6 x 21.8 x 21.3 cm)
    Weight — 2.6 lb. (1.2 kg)
    These products work with:
    • RS-232 Cable, 25-Conductor, Male/Male (ECM25C)
    • V.35 Interface Cable, Male/Male (EYN450-MM)
    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 Smart 64K CSU/DSU, 120-VAC:

    Product Data Sheets

    Application Diagrams


    Connect your Smart 64K CSU/DSU, 120-VAC 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)

    Accessory: EYNT450-0010-MM

    V.35 Interface Cable (34-Conductor), Straight-Pinned, PVC, Male/Male, 10-ft. (3.0-m)

    V.35 Interface Cable (34-Conductor), Straight-Pinned, PVC, Male/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: $68.80

    Extended Three years for two Warranty Available


    Protect your purchase with an additional Three years for twoDouble Diamond™ warranty!
    Cost: $137.59

    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
    Smart 64K CSU/DSU, 120-VAC MT190A $687.95
     
    Smart 64K CSU/DSUs, 24–48-VDC MT190A-D48 $834.95
     
    You can find this product in the following subcategory(s)
     

    Add to Cart

    Price: $687.95

    Quantity

    Warranty

    Total

    Shipping Info

    Usually Ships in 3-5 days


    45-day return policy


    Share It   




    Your shopping cart is empty

    Got Questions?

    chat with a rep

    Talk to Black Box

    An expert will call you in 30 seconds. It's live and it's free.



    (

    (U.S. and Canada Only)

         



    Print
    Black Box 1-877-877-2269
    Black Box Network Services