Upgrade connectivity via fiber optic lines from building 5130 to 4199 to 2354 to 1021 to 1054. - Engineer, furnish, install and test (EFIT) 36-strand single mode (SM) fiber optic cable (FOC) from BLDG. 5130 to BLDG. 4199 and associated terminating equipment, conduits to connect existing maintenance hole / conduit system components to the end building.- EFIT 36-strand SM FOC from BLDG. 4199 to BLDG. 2354 and associated terminating equipment, conduits to connect existing maintenance hole/conduit system components to the end building.- EFIT 12-strand SM FOC from BLDG. 2354 to BLDG. 1054 and associated terminating equipment, conduits to connect existing and new maintenance hole/conduit system components to the end building.- EFIT 24-strand SM FOC from BLDG. 2354 to BLDG. 1054, and associated terminating equipment, conduits to connect existing and new maintenance hole/conduit system components to the end building.- EFIT SM FOC from BLDG. 4199 to BLDG. 1054, and to BLDG. 9006, and associated terminating equipment, conduits to connect existing and new maintenance hole/conduit system components to the end building. Amendment 0005 is a SAM.gov glitch. Please refer to Amendment 0004.