Black Box 1-800-667-6625 



Fiber Optic Loopback - OM3, SC, Black

Verify fiber equipment by looping the signal back.

$43.38 CAD

Limited Quantity In Stock
Typically Ships within One Week
Lifetime Double Diamond™ Warranty (Standard)

*Required field

Product Features

  • Test and troubleshoot fiber optic links in networks or devices.
  • Loopbacks “loop back” the signals from the transmit to the receive pairs.
  • Use to locate faults.
  • Features a ceramic ferrule.
  • Guaranteed for life!

Tech Specs

Connectors SC, Black
Ferrule Ceramic, 2.5 mm
Fiber OM3 50-micron
Insertion Loss (Maximum) <0.3 dB
Return Loss >35 dB
Wavelength Operating: 850 nm/1300 nm

* 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.


Double Diamond Warranty Diamond

Double Diamond™ Warranty (Standard)

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

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.

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 787-767-3500.

** Certain products may not be eligible.

What’s more, we also have a 45-day, no-questions-asked 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.