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10Base-T Harmonica Bar 1 Telco Male RJ45

Consolidate up to 12 lines into multiple 50-pin telco lines.


48 In Stock
Same Day Shipping (before 5PM ET)
Lifetime Double Diamond™ Warranty (Standard)

*Required field

Product Features

  • Make telco connections.
  • Connect your 50-pin telco cable to the unit; it automatically breaks out the 50 pins into RJ jumper ports on the front.
  • Guaranteed for life!


Connect your 50-pin telco cable to the unit; it automatically breaks out the 50 pins into RJ jumper ports on the front.

Tech Specs

Connectors FM035: (12) 4-wire RJ-45 F; (1) 50-pin telco F; 36453: (12) 4-wire RJ-45 F; (1) 50-pin telco M
Size 6.2"H x 4.2"W x 2"D (15.7 x 10.7 x 5.1 cm)
Weight 1 lb. (0.5 kg)

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

The 10Base-T Harmonica Bar 1 Telco Male RJ45 comes with a standard Lifetime 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.