In a standard PON architecture, one OLT can support up to 32, 64, or even 128 endpoints depending on the splitter ratio and technology used (GPON, EPON, XGS-PON). The Passive Optical Network (PON) is the indispensable foundation for delivering ubiquitous, multi-gigabit broadband connectivity, a necessity for modern economies and residential life. Choosing an OLT that matches subscriber demand, port density, and uplink capacity is critical for ensuring scalability. Each port may be attached to the boards or network/line cards via a SFP module which must be a OLT module for it to have its Tx and Rx wavelengths swapped, but not all OLTs use SFP modules as shown in the image to the left. In a Ethernet LAN with structured cabling architecture, Ethernet switches in the main equipment room connect to. When selecting the best OLT (Optical Line Terminal) for your fiber optic network, prioritize scalability, port density, compatibility with ONTs, and support for future-proof standards like XGS-PON 1. Its single-fiber bidirectional transmission mechanism employs WDM, where downstream traffic adopts broadcast mode (1490nm wavelength), and upstream traffic uses TDMA.
[PDF Version]