Tripp Lites N154 series Telco cables are ideal for telephone, PBX, and IP Phone system applications. Constructed with 26AWG, solid conductor, Cat3 rated cable, heavy duty metal backshells with Male RJ21, 50 pin connectors, to Open End for punching down to 66M blocks. EIA/TIA 568B color coded conductors. N154 cables are available in stock lengths of 25ft, 50ft, and 100ft ( N154-025-C3, N154-050-C3, N154-100-C3 ). Tripp Lite Lifetime Warranty. 50ft, 26AWG Cat3 UTP copper cable for extending voice connections Male 50pin Centronics Telco connector to Open End Use with Telephone, PBX, and IP Phone Systems EIA/TIA 568B color code PVC Jacket Rugged metal backshell connectors RoHS Compliant Lifetime Warranty Applications Ideal for Phone, PBX, and IP Phone equipment interconnections System Requirements Communication equipment and connectivity devices utilizing 50pin Telco type connections and 66M punch down blocks Package Includes 1 - 50ft Cat3 25-Pair Telco Cable, RJ21 Male to Open End