• 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 > Extenders & Line Drivers

click photo to enlarge

MT651C

Photo may show similar product

Other views

T1/E1 Fiber Optic Line Drivers, 850-nm Multimode  

Extend T1/E1 lines from demarcation all the way to your equipment.

MT651C

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

Product Highlights

  • Multimode models use a VCSEL light source and send data up to 4.3 miles (7 km).
  • Single-mode models feature a laser driver to send data up to 31 miles (50 km).

  • Description

    T1/E1 Fiber Optic Line Driver Rackmount Card, ST, 850-nm Multimode


    Quick Facts

  • Multimode models use a VCSEL light source and send data up to 4.3 miles (7 km).
  • Single-mode models feature a laser driver to send data up to 31 miles (50 km).

  • Further Details

  • Convert T1 or E1 signals to fiber optic pulses.
  • Provide high speed with security.
  • Support AMI, B8ZS, and HDB3 line codes.

  • The phone company brings a T1 or E1 line to your building and terminates it. That’s called the demarcation point. For a price, they’ll extend the line from there to your T1 or E1 equipment. Or you can do it yourself with a Fiber Optic Line Driver. Get the extra distance you need and immunity to electrical noise and surges with fiber cable.

    These drivers convert T1’s or E1’s electrical signals to fiber optic light pulses and maintain the speed, clarity, and data integrity of your T1 or E1 line. Framing transparency and selectable options enable transmission with AMI, HDB3, or B8ZS signals.

    Our T1/E1 Fiber Optic Line Drivers also enable you to switch between T1 and balanced or unbalanced E1. Choose from standalone or card models.


    Technical Specifications for T1/E1 Fiber Optic Line Drivers, 850-nm Multimode:

    Distance (Maximum) — Multimode: MT651A-ST-R2, MT651C: 4.3 miles (7 km);
    Single-mode: MT650A-ST-R3, MT653A-ST-D48-R3, MT650C-R2: 31 miles (50 km)
    Speed — 1.544 Mbps or 2.048 Mbps
    CE Approval — Yes
    Interface — DSX-1, G.703 balanced or unbalanced; 75, 100, or 120 ohms, jumper-selectable
    Connectors — (1) DB15 F, (2) BNC F, (1) pair of ST®
    Power — MT651A-ST-R2, MT650A-ST-R3: 100–240 VAC, 50–60 Hz, autosensing;
    MT653A-ST-D48-R3: 40–72 VDC;
    MT651C, MT650C-R2: From the rack (RM110A)
    Size — MT651A-ST-R2, MT650A-ST-R3, MT653A-ST-D48-R3: 1.7"H x 9.4"W x 6.7"D (4.3 x 23.9 x 17 cm);
    MT651C, MT650C-R2: 0.9"H x 6.2"W x 9"D (2.3 x 15.7 x 22.9 cm)
    NOTE: Must be used in pairs.

    These products work with:
  • Ceramic Multimode Fiber Optic Patch Cable, ST–ST (EFN110)
  • Single-Mode Duplex Fiber Optic Cable, ST–ST (EFN5009)
  • T1 Cable, Straight-Pinned, RJ-48C/RJ-48C (ETNMRS01)
    The MT651C and MT650C-R2 also work with:
  • RackNest 2/14 (RM110A, RM110AE)
    Questions? Contact our FREE Tech Support.

    The rackmount card versions work with:
    • RackNest 2/14 (RM110A)
    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 T1/E1 Fiber Optic Line Drivers, 850-nm Multimode:

    Product Data Sheets


    Connect your T1/E1 Fiber Optic Line Drivers, 850-nm Multimode with:

    Accessory: EFN110-001M-STST

    ST–ST, Duplex, Riser, 1-m (3.2-ft.)

    Premium Ceramic, Multimode, 62-5-Micron Fiber Optic Patch Cables, ST–ST, Duplex, Riser, 1-m (3.2-ft.)

    Accessory: ETNMSR01-0005

    T1 Cable, RJ-48C/RJ-48C, 5-ft. (1.5-m)

    T1 Cable, RJ-48C/RJ-48C, 5-ft. (1.5-m)

    Accessory: EFN5009

    ST–ST, PVC, Custom Lengths

    Single-Mode, 9.0-Micron Duplex Fiber Optic Cable, ST–ST, PVC, Custom Lengths

    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: $115.00

    Extended Three years for two Warranty Available


    Protect your purchase with an additional Three years for twoDouble Diamond™ warranty!
    Cost: $229.99

    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: $1,149.95

    Quantity

    Warranty

    Total

    In Stock

    Shipping Info

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


    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