Networx T1 / E1 / PRI Loopback Tester - RJ45 Universal Pinout ,Pins 1-4 and 2-5- Circuit Verification for Router CSUs and Smartjacks

INSTANT T-CARRIER DIAGNOSTICS: The industry-standard diagnostic tool for telecommunications circuits. Verifies circuit integrity on T1, E1, and ISDN PRI lines. , HARDWARE LOOP: Creates a physical loop on the Transmit and Receive pairs (Pins 1-4 and 2-5), allowing technicians to force a "Link Up" status and isolate hardware faults on Routers and CSUs. , UNIVERSAL PINOUT: Natively compatible with T1, E1, J1, and ISDN PRI standards without the need for configuration or batteries. , FIELD READY: Compact, molded PVC design with gold-plated contacts. Essential for testing Smartjacks and demarc extensions. , LIFETIME: Backed by the Networx Lifetime.