This cable can be used to connect two DDS CSU/DSU (i.e., DSU) products in a back-to-back configuration. This pinout is the same for both a RJ-45 plug and RJ-45 jack.įigure 5 shows the pinout for building a DDS crossover cable. The Overflow Blog The Overflow 112: Psychological safety for high-performing teams. Browse other questions tagged loopback rj45 or ask your own question. This cable can be used to connect two T1 CSU/DSU (i.e.,TSU) products in a back-to-back configuration.įigure 4 shows the pinout for building a DDS loopback adapter. The obvious problem could be that I crimped the cable wrong, but now Im on the 3rd one and I get exactly same frustrating results. This pinout is the same for both a RJ-45 plug and RJ-45 jack.įigure 3 shows the pinout for building a T1 crossover cable. There are eight pins total in a RJ-45 connector.įigure 2 shows the pinout for building a T1 loopback adapter. This document shows the necessary pinout for building them.įigure 1 shows a how to orient a standard RJ-45 to RJ-45 silver satin cable to determine pin 1. Loopback adapters and crossover cables are useful tools for troubleshooting both DDS & T1 circuits. Loopback Adapters and Crossover Cables for T1 and DDS Circuits
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