Multifunctional olt optical module

Abstract

The invention discloses a multifunctional OLT optical module. The multifunctional OLT optical module comprises an electrical connector, a microprocessor circuit, a high-speed transmitter, a high-speed receiver, a low-speed transmitter, a low-speed receiver, and an integrated optical device, wherein the microprocessor circuit receivers configuration commands from an OLT system through the electrical connector, so as to respectively control operations of the transmitters and the receivers in the optical module. Therefore, the multifunctional OLT optical module provided by the invention not only is applicable for independent operations in a GPON network with a relatively low speed or an XGPON network with a relatively high speed, but also is applicable for simultaneous operations as two PON network OLT transceivers in a network application combining GPON and XGPON; various different PON network applications can be supported by the OLT optical module, so that the local side OLT optical port density and the networking flexibility are improved; and the design in which the PON network applications with various different rates are simultaneously supported in the same optical network facilitates smooth evolution and expansion between the GPON network and the XGPON network, protects existing PON network construction investments, and reduces the operation and maintenance costs of operators.

Description

technical field [0001] The invention relates to the technical field of optical communication, and more specifically relates to a multifunctional OLT optical module. Background technique [0002] PON (Passive Optical Network) network consists of OLT (Optical Line Terminal), ONU (Optical Network Unit) and ODN (Optical Distribution Network) connected between OLT and ONU. Because PON network technology has high performance and low operation and maintenance costs And other significant advantages, has become the mainstream of access network technology in the world. [0003] In the current PON network technology, GPON (gigabit passive optical network) network technology is more widely used. The downlink center wavelength of GPON network technology is 1490nm, the uplink center wavelength is 1310nm, the downlink rate is 2.488Gbps, and the uplink rate is 1.244Gbps. With the increase of users' demand for communication speed, XGPON (10 Gigabit Passive Optical Network) network technolog...

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Problems solved by technology

[0007] The OLT optical module of the PON network in the above prior art has the following defects: the existing GPON network and the XGPON network OLT optical module cannot be used interchangeably, and the original GPON network OLT optical module cannot be reused after the GPON network is upgraded to the XGPON network, resulting in Waste of resources and costs, while GPON and XGPON networks share the same ODN, the additional wavelength division multiplexer brings the demand for space expansion of the equipment room and increases the cost, and the GPON network and the relatively high-speed XGPON network share the same ODN requires a GPON network OLT optical module and an XGPON network OLT optical module to work at the same time, resulting in system reliability, service quality degradation, high cost, and large space occupation. At the same time, too many types of OLT optical modules will cause inconvenience for operators to maintain

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