PON Principles
PON Principles: [bodyads] (Almost) all PON types obey the same basic principles OLT and ONU consist of Layer 2 (Ethernet MAC, ATM adapter, etc.) optical transceiver using different lsĀ for transmit and receive optionally: Wavelength Division Multiplexer Downstream transmission OLT broadcasts data downstream to all ONUs in ODN ONU captures data destined for its address, discards all other data encryption needed to ensure privacy