O Optical Access Network was choosen to accommodate telecommunication service on bussiness area, in this case application technology used was Fiber To The Building (FTTB) and for the implementation technology Digital Loop Carrier (DLC) was choosen. The Syncronous Digital Hierarchy (SDH) was choosen for the transmission system. The Optical Access Network analysis on this Final Assignment is to improve services by PT Telkom as a telecommunication network provider in Indonesia. The Optical Access Network performance is determined by calculating Power Link Budget, Rise Time Budget and optical fiber Losses. The result of this calculation will be compared with the result of the observation using an Optical Time Domain _Reflectometry (OTDR). Based on the calculation of the Rise Time Budget, the value of Rise Time Budget on ring-1 at STO Cimahi with the longest distance of 10,1225 km (STO Cimahi - RC) was 1,71 ns and the optical fiber losses was (3,5850 - 8,6762) dB. For the Power Link Budget analysis a 0,3 % - 0,6 % differences between the result of calculation and the result of observation using OTDR. This differences was occurred because the construction of the Optical Access Network was not correctly done.