GPON is both time divided and frequency divided. There are typically 3 wavelengths.(frequency division). Two for data(downstream and upstream) and one for vide

GPON is both time divided and frequency divided. There are typically 3 wavelengths.(frequency division). Two for data(downstream and upstream) and one for video (downstream). The downstream channels(both video and data) are broadcast and not time divided. The streams are filtered by the ONT. The upstream data channel is time divided to permit multiple devices transmitting without collision.