1 550 nm fiber-optic ring network

500 kV main ring network

bus ring

bus-ring

double ring network

dual ring network

DVB-C 1 550 nm fiber-optic ring network

Electromagnetic Ring Network

Ethernet ring network

FDDI ring network

fiber ring network

Four-fiber Multiplex Segment Protection Ring Network

IBM token ring network

multiple Hub ring network

multi-ring network

OADM ring network

OBS ring network

Optical Fiber Ring Network

optical fiber self-cure ring network