ISO/IEC TR 12075:1994

The purpose is to supplement the token ring standard ISO/IEC 8802-5. Therefore, includes a description and recommended values of characteristics of the appropriate elements within a token ring network, the cabling system topology with recommended distances, transmission requirements of suitable medium for 4 and 16 Mbit/s token rings, guidelines for the design, planning and installation of cabling systems to support 4 and 16 Mbit/s token rings, guidance on documentation and labelling to support token rings. All cabling recommendations specifically refer to using 150 shielded twisted pair lobe cabling.