IBM type 1 token ring network cabling still in use with converters to rj45 Ethernet : r/vintagecomputing
File:IBM PCMCIA Token Ring Card.jpg - Wikimedia Commons
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IBM 6339098 Eq. Type 1 TRDC / DB9M Token Ring Adapter Cable - BISMON | All of Comunication Products Terminated OTDR,Test OTDR,Fusion splice,Fiber Optic cable