Stay Online CSU/DSU 56k Loopback Plug for Testing, RJ-45 Female with Pins 1-7 and 2-8


Type RJ-45
Pins 1-7 and 2-8
Purpose Testing physical ethernet ports


Used to reroute transmit and receive ethernet signals back down the RJ-45 network patch cable that is plugged into the NIC or switch.

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