G.650 thru G.681, G.911, G.981, G.982
GR-909-CORE: Fiber in the Loop Systems GR-1312-CORE: Optical Fiber Amplifiers and DWDM Systems GR-2918-CORE: DWDM Systems with Digital Tributaries GR-2979-CORE: Optical Add-Drop Multiplexers (OADMs) and Optical Terminal Multiplexers (OTMs) GR-3009-CORE: Optical Cross-Connect