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Pocket Opto Source With ST Connector

Provides a light source for testing installed fiber optic cable.


5 In Stock
Same Day Shipping (before 5PM ET)
Extended Double Diamond™ Warranty Available (3 Additional Year)

*Required field

Product Features

  • Send a beam of light from your Opto Source down the cable, so someone at the other end can receive the signal in the tester.
  • Works with multimode fiber.


Pocket Opto Source With ST Connector

Tech Specs

CE Approval Yes
Connectors (1) ST
Indicators PWR, Bargraph-style LED in 2-dBm increments
Output Wavelength 850 n ± 15 nm at ± 3 dBm
Power 9-V, supplied by alkaline or nickel-cadmium transistor battery
Power Output –20 dBm ±0.5 dBm (100µ-core fiber); –23 dBm ±1 dBm (62.5µ-core fiber); –26 dBm ±1 dBm (50µ-core fiber)
Readout Range –22 dBm to –40 dBm
Readout Resolution 2 dBm
Size 4.5“H x 2.3“W x 1“D (11.4 x 5.8 x 2.5 cm)
NOTE: Fiber testers are for use with glass-core fiber optic cable only.

* 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

Extended 1 Year Warranty Available

Protect your purchase with an additional 1 Year Double Diamond™ warranty!
Cost: $21.74

Extended 3 Year Warranty Available

Protect your purchase with an additional 3 Year Double Diamond™ warranty!
Cost: $43.47


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 warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

The Pocket Opto Source With ST Connector comes with a standard 1 Year Double Diamond™ Warranty (Standard) 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.