Pluggable OLT in Ethernet passive optical networks

摘要

One embodiment provides a pluggable optical line terminal (OLT). The OLT includes a bi-directional optical transceiver configured to transmit optical signals to and receive optical signals from a number of optical network units (ONUs), an OLT chip coupled to the optical transceiver and configured to communicate with the ONUs through the optical transceiver, and a pluggable interface coupled to the OLT chip and configured to electrically interface between the OLT chip and a piece of network equipment. The optical transceiver, the OLT chip, and the pluggable interface are contained in an enclosure complying with a form factor, thereby allowing the pluggable OLT to be directly plugged into the network equipment.

主权项

1. A pluggable optical line terminal (OLT), comprising:
a bi-directional optical transceiver configured to transmit optical signals to and receive optical signals from a number of optical network units (ONUs); an OLT chip coupled to the bi-directional optical transceiver and configured to communicate with the ONUs through the bi-directional optical transceiver, the OLT chip including:
an Ethernet Passive Optical Network (EPON) scheduler configured to perform downstream traffic flow control of information over an optical interface; a pluggable interface coupled to the OLT chip and configured to electrically interface between the OLT chip and a piece of network equipment; and an Ethernet serializer/deserializer (SERDES) module that is coupled between the pluggable interface and the OLT chip, configured to facilitate serial communication through the pluggable interface, wherein the bi-directional optical transceiver, the OLT chip, the Ethernet SERDES module, and the pluggable interface are contained in an enclosure complying with a form factor, thereby allowing the pluggable OLT to be directly plugged into the piece of network equipment.