OC-1 is a SONET line with transmission speeds of up to 51. 728 Mbit/s) using optical fiber. At present OFC (Optical Fibre Cable) connectivity is available in all State Capitals, Districts, HQs and upto the Block Level. This will be done by utilizing existing fibres of PSUs (BSNL, Railtel and Power Grid) and laying. BharatNet, one of the biggest rural telecom projects in the world, implemented in a phased manner to all Gram Panchayats (approximately 2. Objective is to enable access. Pharmaceuticals Public Sector Retail Technology Back to Industry Data Center Operators Back to Industry Energy Back to Industry Financial Services Back to Industry Gaming Network Back to Industry Healthcare Back to Industry Manufacturing Back to Industry Media & Entertainment Back to Industry. ation or liability to users of this publication. Existence of a standard shall not preclude any member or nonmember of NECA or FOA from specifying or using alternate construc Code (NEC) in effect at the time of publication. Because they are quality standards, NEIS® may in some instanc s go beyond. Optical Distribution Network (ODN) - The physical fibre and optical devices that distribute signals to users in a telecommunications network. The ODN is composed of passive optical components (POS), such as optical fibers, and one or more passive optical splitters.