CN208489852U - The PON optical communication SOT state of termination generally investigates instrument - Google Patents

The PON optical communication SOT state of termination generally investigates instrument Download PDF

Info

Publication number
CN208489852U
CN208489852U CN201820064460.4U CN201820064460U CN208489852U CN 208489852 U CN208489852 U CN 208489852U CN 201820064460 U CN201820064460 U CN 201820064460U CN 208489852 U CN208489852 U CN 208489852U
Authority
CN
China
Prior art keywords
optical
light
terminal
output end
wavelength division
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201820064460.4U
Other languages
Chinese (zh)
Inventor
王京宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Yi Yi Photoelectric Technology Development Co Ltd
Original Assignee
Beijing Yi Yi Photoelectric Technology Development Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Yi Yi Photoelectric Technology Development Co Ltd filed Critical Beijing Yi Yi Photoelectric Technology Development Co Ltd
Priority to CN201820064460.4U priority Critical patent/CN208489852U/en
Application granted granted Critical
Publication of CN208489852U publication Critical patent/CN208489852U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Optical Communication System (AREA)

Abstract

The utility model provides a kind of PON optical communication SOT state of termination generaI investigation instrument, comprising: optical receiver, optical path distributor, optical transmitting set and controller；The controller is connect with the optical receiver, the optical path distributor and the optical transmitting set respectively；Optical path distributor includes the side OLT adapter, photoswitch, 2X2 optical splitter, the side ONT adapter, the one 1 point of 2 optical splitters, the 2nd 1 point of 2 optical splitters, the first wavelength division multiplexer, the second wavelength division multiplexer, third wavelength division multiplexer and optical combiner.Advantage are as follows: controller realizes the monitoring to 7 kinds of parameters of subscriber terminal equipment, and the performance number of 7 kinds of parameters is to have reacted the state of subscriber terminal equipment, has the advantages that subscriber terminal equipment monitoring parameter is comprehensive；In addition, by each optical splitter of flexible setting, optical combiner and wavelength division multiplexer, effectively reducing the complexity of circuit structure in the utility model, having the advantages that circuit structure is simple.

Description

The PON optical communication SOT state of termination generally investigates instrument
Technical field
The utility model belongs to detection field of instrumentation technology, and in particular to a kind of PON optical communication SOT state of termination generaI investigation instrument.
Background technique
Optical fiber cable is the medium that light communication system is communicated, and because of its relatively past copper cable medium, is had at low cost Honest and clean, the apparent advantage such as bandwidth is high, it has also become the main trend of communication system, and FTTH (Fiber to the home, optical fiber To family) it is widely used as new generation broadband solution, the access platform of high bandwidth full-service is provided for user, is ideal Business transparent network.
In the specific embodiment of FTTH, PON (Passive Optical Network: passive optical-fiber network) is because of its ODN (optical fiber distributing network) eliminates outdoor active equipment, early investment without containing electronic component and expensive active equipment It is few, it can economically serve house user network.
PON optical communication network is characterized in: local side downgoing communication is that broadcast type issues, and user terminal uplink communication then needs to adopt The information of shared transmission channel is completed with multiple access protocol such as TDMA (Time Division Multiple Access) agreement Access, the PON technology currently used for broadband access mainly have EPON and GPON, may develop from now on as WDM-PON.
With reference to Fig. 1, PON network specifically includes that local side apparatus OLT (Optical Line Terminal), user terminal are set Standby ONT (Optical Network Terminal) and Optical Distribution Network ODN (Optical Distribution Network). Wherein, Optical Distribution Network ODN is made of passive optical cable and optical splitter.
Current broadband access Communications service brings and docks into network because of the diversity of its business and the raising of communication speed Higher requirement needs more to pay close attention to and grasp subscriber terminal equipment ONT in the operation and network management of broadband access network State, effectively the state of subscriber terminal equipment ONT is monitored, is of great significance.
At present to the status monitor device of subscriber terminal equipment ONT, have that monitoring parameter is few, circuit structure is complicated asks Topic.
Utility model content
In view of the defects existing in the prior art, the utility model provides a kind of PON optical communication SOT state of termination generaI investigation instrument, can have Effect solves the above problems.
The technical solution adopted in the utility model is as follows:
The utility model provides a kind of PON optical communication SOT state of termination generaI investigation instrument, comprising: optical receiver, optical path distributor, light Transmitter and controller；The controller is connect with the optical receiver, the optical path distributor and the optical transmitting set respectively；
Wherein, the optical path distributor includes the side OLT adapter, photoswitch, 2X2 optical splitter, the side ONT adapter, One 1 point of 2 optical splitter, the 2nd 1 point of 2 optical splitter, the first wavelength division multiplexer, the second wavelength division multiplexer, third wavelength division multiplexer And optical combiner；
The optical receiver includes 7 light-receiving terminals, respectively the 1st light-receiving terminal, the 2nd light-receiving terminal, the 3rd light Receiving terminal, the 4th light-receiving terminal, the 5th light-receiving terminal, the 6th light-receiving terminal and the 7th light-receiving terminal；
The optical transmitting set includes the 1st optical transmitting set and the 2nd optical transmitting set；
The signal for the optical splitter that the receiving end of the side OLT adapter is connected to local side OLT by optical patchcord emits End；The transmitting terminal of the side OLT adapter is connected to the 1st input terminal of photoswitch；1st optical transmitting set and the 2nd light Transmitter is connected respectively to the 1st input terminal of optical combiner and the 2nd input terminal of optical combiner；The output end of the optical combiner It is connected to the 2nd input terminal of photoswitch；
The output end of the photoswitch is connected to the 1st input terminal of 2X2 optical splitter；1st input of 2X2 optical splitter is defeated Outlet is connected to the input terminal of the side ONT adapter；The output end of the side ONT adapter is connected to monitored subscriber terminal equipment； 1st output end of 2X2 optical splitter is connected to the input terminal of the one 1 point of 2 optical splitters；The of one 1 point of 2 optical splitters 1 output end is connected to the 1st light-receiving terminal of optical receiver；2nd output end of the one 1 point of 2 optical splitters is connected to first wave The input terminal of division multiplexer；1st output end of the first wavelength division multiplexer is connected to the 2nd light-receiving terminal；First wavelength division multiplexer The 2nd output end be connected to the 3rd light-receiving terminal；
The reflection signal of the optical cable end of subscriber terminal equipment or actively emit signal by optical cable be connected to the side ONT adaptation The input terminal of device；The output end of the side ONT adapter is connected to the 1st input/output terminal of 2X2 optical splitter；2X2 optical splitter 2nd output end is connected to the input terminal of the 2nd 1 point of 2 optical splitters；1st output end of the 2nd 1 point of 2 optical splitters connects It is connected to the input terminal of the second wavelength division multiplexer；1st output end of the second wavelength division multiplexer is connected to the 4th light-receiving terminal；Second 2nd output end of wavelength division multiplexer is connected to the 5th light-receiving terminal；2nd output end of the 2nd 1 point of 2 optical splitters connects To the input terminal of third wavelength division multiplexer；1st output end of third wavelength division multiplexer is connected to the 6th light-receiving terminal；Third wave 2nd output end of division multiplexer is connected to the 7th light-receiving terminal.
PON optical communication SOT state of termination generaI investigation instrument provided by the utility model has the advantage that
Controller realizes the monitoring to 7 kinds of parameters of subscriber terminal equipment, and the performance number of 7 kinds of parameters has reacted user's end The state of end equipment has the advantages that subscriber terminal equipment monitoring parameter is comprehensive；In addition, in the utility model, by flexibly setting Each optical splitter, optical combiner and wavelength division multiplexer are set, the complexity of circuit structure is effectively reduced, there is circuit structure letter Single advantage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the PON optical communication SOT state of termination provided by the utility model generally investigates instrument；
Fig. 2 is the structure composition schematic diagram of PON optical communication network；
Wherein: 1200- optical path distributor；The side 1231-OLT adapter；The side 1232-ONT adapter；1210-2X2 optical branching Device；1250- photoswitch；The one 1 point of 2 optical splitters of 1241-；The 2nd 1 point of 2 optical splitters of 1242-；1243- optical combiner； 1221- third wavelength division multiplexer；The first wavelength division multiplexer of 1222-；The second wavelength division multiplexer of 1223-；1700- optical receiver； The 1st optical transmitting set of 1710-；The 2nd optical transmitting set of 1720-；1100- optical receiver；The 1st light-receiving terminal of 1110-；The 7th light of 1120- Receiving terminal；The 6th light-receiving terminal of 1130-；The 2nd light-receiving terminal of 1140-；The 3rd light-receiving terminal of 1150-；The 4th light of 1160- Receiving terminal；The 5th light-receiving terminal of 1170-.
Specific embodiment
The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below In conjunction with accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific implementation described herein Example only to explain the utility model, is not used to limit the utility model.
With reference to Fig. 2, PON network specifically includes that local side apparatus OLT (Optical Line Terminal), user terminal are set Standby ONT (Optical Network Terminal) and Optical Distribution Network ODN (Optical Distribution Network). Wherein, Optical Distribution Network ODN is made of passive optical cable and optical splitter.Wherein: 10- local side OLT；20- optical splitter； 30- subscriber terminal equipment；40- optical cable.Subscriber terminal equipment is the ONT in Fig. 2.
In conjunction with Fig. 1, the utility model provides a kind of PON optical communication SOT state of termination generaI investigation instrument, be placed in Fig. 2 optical splitter and Between the optical cable for connecting subscriber terminal equipment, for monitoring the working condition of subscriber terminal equipment, comprising: optical receiver, optical path Distributor, optical transmitting set and controller；Controller is connect with optical receiver, optical path distributor and optical transmitting set respectively；
Wherein, optical path distributor includes the side OLT adapter, photoswitch, 2X2 optical splitter, the side ONT adapter, the one 1 point 2 optical splitters, the 2nd 1 point of 2 optical splitters, the first wavelength division multiplexer, the second wavelength division multiplexer, third wavelength division multiplexer and photosynthetic Road device；
Optical receiver includes 7 light-receiving terminals, respectively the 1st light-receiving terminal, the 2nd light-receiving terminal, the 3rd light-receiving Terminal, the 4th light-receiving terminal, the 5th light-receiving terminal, the 6th light-receiving terminal and the 7th light-receiving terminal；
Optical transmitting set includes the 1st optical transmitting set and the 2nd optical transmitting set；
The receiving end of the side OLT adapter is connected to the signal transmitting terminal of the optical splitter of local side OLT by optical patchcord； The transmitting terminal of the side OLT adapter is connected to the 1st input terminal of photoswitch；1st optical transmitting set and the 2nd optical transmitting set are connected respectively to 1st input terminal of optical combiner and the 2nd input terminal of optical combiner；It is the 2nd defeated to be connected to photoswitch for the output end of optical combiner Enter end；
The output end of photoswitch is connected to the 1st input terminal of 2X2 optical splitter；1st input/output terminal of 2X2 optical splitter It is connected to the input terminal of the side ONT adapter；The output end of the side ONT adapter is connected to monitored subscriber terminal equipment；2X2 light 1st output end of splitter is connected to the input terminal of the one 1 point of 2 optical splitters；1st output end of the one 1 point of 2 optical splitters connects It is connected to the 1st light-receiving terminal of optical receiver；2nd output end of the one 1 point of 2 optical splitters is connected to the first wavelength division multiplexer Input terminal；1st output end of the first wavelength division multiplexer is connected to the 2nd light-receiving terminal；2nd output end of the first wavelength division multiplexer It is connected to the 3rd light-receiving terminal；
The reflection signal of the optical cable end of subscriber terminal equipment or actively emit signal by optical cable be connected to the side ONT adaptation The input terminal of device；The output end of the side ONT adapter is connected to the 1st input/output terminal of 2X2 optical splitter；2X2 optical splitter 2nd output end is connected to the input terminal of the 2nd 1 point of 2 optical splitters；1st output end of the 2nd 1 point of 2 optical splitters is connected to second The input terminal of wavelength division multiplexer；1st output end of the second wavelength division multiplexer is connected to the 4th light-receiving terminal；Second wavelength-division multiplex 2nd output end of device is connected to the 5th light-receiving terminal；It is multiple that 2nd output end of the 2nd 1 point of 2 optical splitters is connected to third wavelength-division With the input terminal of device；1st output end of third wavelength division multiplexer is connected to the 6th light-receiving terminal；The 2nd of third wavelength division multiplexer Output end is connected to the 7th light-receiving terminal.
A kind of PON optical communication SOT state of termination provided by the utility model generally investigates instrument, its working principle is that:
PON SOT state of termination detection instrument is placed between optical splitter and the optical cable for connecting subscriber terminal equipment, such as Fig. 1 institute Show, the side the OLT adapter of optical path distributor connects optical splitter port with optical patchcord；The side the ONT adapter of optical path distributor The optical cable of connection subscriber terminal equipment is connected to light wire jumper；
(1) PON terminal is linked by the side OLT adapter by the 1st light signal of 1490 wavelength of downlink that local side OLT emits In state-detection instrument, after photoswitch, then by 2X2 optical splitter, most of power 90% is continued to transmit, is passed through The side ONT adapter is sent to subscriber terminal equipment, wherein by the fraction power 10% of 2X2 optical splitter, then passes through first 1 point of 2 optical splitter is connected to the 1st light-receiving terminal of optical receiver, is achieved in the light source for being sent to subscriber terminal equipment The acquisition of signal monitors；
(2) simultaneously, after the 1st light signal of 1490 wavelength of downlink of local side OLT transmitting detects instrument by the PON SOT state of termination It is sent to subscriber terminal equipment, and generates echo in the end of subscriber terminal equipment or the optical cable in connection subscriber terminal equipment Reflection generates the 1st reflection signal, and the 1st reflection signal passes through optical cable, the side ONT adapter, 2X2 optical splitter, the 2nd 1 point of 2 light point Road device, third wavelength division multiplexer return, and are received by the 7th light-receiving terminal of optical receiver, are achieved in whole to user is sent to The acquisition monitoring of the reflection signal of the light signal of end equipment；
(3) as the indoor subscriber terminal equipment of user is in normal operating conditions, 1490 wavelength of downlink of local side OLT transmitting 1st light signal is sent to subscriber terminal equipment after detecting instrument by the PON SOT state of termination, and subscriber terminal equipment is logical according to PON It interrogates agreement and sends 1310 wavelength burst optical signal of uplink, this 1310 wavelength burst optical signal of uplink is adapted to by optical cable, the side ONT Most of power is ultimately sent to local side OLT by the side OLT adapter, optical splitter, optical cable after device, 2X2 optical splitter, completes PON communication；This 1310 wavelength burst optical signal of uplink passes through fraction power after optical cable, the side ONT adapter, 2X2 optical splitter After the 2nd 1 point of 2 optical splitter, third wavelength division multiplexer, is received, be achieved in by the 6th light-receiving terminal of optical receiver Acquisition monitoring to the 1310 wavelength burst optical signal of uplink that subscriber terminal equipment is sent；
(4) local side OLT transmitting the 1st light signal of 1490 wavelength of downlink, by ODN optical cable and optical splitter transmit When to subscriber terminal equipment, optical signal optical power value has decay pattern of anomaly, although PON communication can be completed, because of the 1st light source letter Number power it is low, cause the 1st reflection signal optical power it is too low, the detection of the 7th light-receiving terminal of corresponding optical receiver Accuracy, and then lead to the condition monitoring accuracy to subscriber terminal equipment.
So at this point, control photoswitch, makes the 1st optical transmitting set and the 2nd optical transmitting set emit the light source letter of different wave length Number, respectively the 2nd light signal and the 3rd light signal；2nd light signal and the 3rd light signal by after optical combiner by Photoswitch, most of power optical signal are sent to subscriber terminal equipment, fraction function by 2X2 optical splitter, the side ONT adapter After rate optical signal is by 2X2 optical splitter, the one 1 point of 2 optical splitter, the first wavelength division multiplexer, connect by the 2nd light of optical receiver Receiving end and the 3rd light-receiving terminal receive；Realize that the acquisition to the light signal for being sent to subscriber terminal equipment monitors；
(5) the 3rd reflection signal of the 2nd reflection signal of corresponding 2nd light signal and corresponding 3rd light signal passes through ONT After side adapter, 2X2 optical splitter, the 2nd 1 point of 2 optical splitter, the second wavelength division multiplexer, by the 4th light-receiving of optical receiver Terminal and the 5th light-receiving terminal receive, and realize that the acquisition of the reflection signal to the light signal for being sent to subscriber terminal equipment is supervised Control.
It can be seen that controller realizes the monitoring to 7 kinds of parameters of subscriber terminal equipment, the performance number of 7 kinds of parameters, that is, anti- The state for having answered subscriber terminal equipment has the advantages that subscriber terminal equipment monitoring parameter is comprehensive；In addition, in the utility model, By each optical splitter of flexible setting, optical combiner and wavelength division multiplexer, the complexity of circuit structure is effectively reduced, is had The simple advantage of circuit structure.
The utility model provides a kind of PON optical communication SOT state of termination generaI investigation instrument, has the advantage that
(1) instrument is detected according to the PON SOT state of termination of the utility model, it is indoor to enter user, close to user Optical splitter rear end can to routes all under the Channelizer port carry out integrated network quality detection, improve network dimension The high efficiency and timeliness of shield；
It (2) according to the PON SOT state of termination detection instrument of the utility model is detected by formula, even if user is in Web vector graphic In it is also unaffected, improve users' satisfaction degree, reduce customer complaint rate.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and Retouching should also regard the protection scope of the utility model.

Claims (1)

1. a kind of PON optical communication SOT state of termination generally investigates instrument characterized by comprising optical receiver, optical path distributor, light emitting Device and controller；The controller is connect with the optical receiver, the optical path distributor and the optical transmitting set respectively；
Wherein, the optical path distributor includes the side OLT adapter, photoswitch, 2X2 optical splitter, the side ONT adapter, the one 1 point 2 optical splitters, the 2nd 1 point of 2 optical splitters, the first wavelength division multiplexer, the second wavelength division multiplexer, third wavelength division multiplexer and photosynthetic Road device；
The optical receiver includes 7 light-receiving terminals, respectively the 1st light-receiving terminal, the 2nd light-receiving terminal, the 3rd light-receiving Terminal, the 4th light-receiving terminal, the 5th light-receiving terminal, the 6th light-receiving terminal and the 7th light-receiving terminal；
The optical transmitting set includes the 1st optical transmitting set and the 2nd optical transmitting set；
The receiving end of the side OLT adapter is connected to the signal transmitting terminal of the optical splitter of local side OLT by optical patchcord；Institute The transmitting terminal for stating the side OLT adapter is connected to the 1st input terminal of photoswitch；1st optical transmitting set and the 2nd optical transmitting set It is connected respectively to the 1st input terminal of optical combiner and the 2nd input terminal of optical combiner；The output end of the optical combiner is connected to 2nd input terminal of photoswitch；
The output end of the photoswitch is connected to the 1st input terminal of 2X2 optical splitter；1st input/output terminal of 2X2 optical splitter It is connected to the input terminal of the side ONT adapter；The output end of the side ONT adapter is connected to monitored subscriber terminal equipment；2X2 light 1st output end of splitter is connected to the input terminal of the one 1 point of 2 optical splitters；1st output of the one 1 point of 2 optical splitters End is connected to the 1st light-receiving terminal of optical receiver；2nd output end of the one 1 point of 2 optical splitters is connected to the first wavelength-division multiplex The input terminal of device；1st output end of the first wavelength division multiplexer is connected to the 2nd light-receiving terminal；The 2nd of first wavelength division multiplexer is defeated Outlet is connected to the 3rd light-receiving terminal；
The reflection signal of the optical cable end of subscriber terminal equipment actively emits signal and is connected to the side ONT adapter by optical cable Input terminal；The output end of the side ONT adapter is connected to the 1st input/output terminal of 2X2 optical splitter；The 2nd of 2X2 optical splitter is defeated Outlet is connected to the input terminal of the 2nd 1 point of 2 optical splitters；1st output end of the 2nd 1 point of 2 optical splitters is connected to The input terminal of second wavelength division multiplexer；1st output end of the second wavelength division multiplexer is connected to the 4th light-receiving terminal；Second wavelength-division 2nd output end of multiplexer is connected to the 5th light-receiving terminal；2nd output end of the 2nd 1 point of 2 optical splitters is connected to The input terminal of three wavelength division multiplexers；1st output end of third wavelength division multiplexer is connected to the 6th light-receiving terminal；Third wavelength-division is multiple The 7th light-receiving terminal is connected to the 2nd output end of device.
CN201820064460.4U 2018-01-16 2018-01-16 The PON optical communication SOT state of termination generally investigates instrument Expired - Fee Related CN208489852U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820064460.4U CN208489852U (en) 2018-01-16 2018-01-16 The PON optical communication SOT state of termination generally investigates instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820064460.4U CN208489852U (en) 2018-01-16 2018-01-16 The PON optical communication SOT state of termination generally investigates instrument

Publications (1)

Publication Number Publication Date
CN208489852U true CN208489852U (en) 2019-02-12

Family

ID=65255674

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820064460.4U Expired - Fee Related CN208489852U (en) 2018-01-16 2018-01-16 The PON optical communication SOT state of termination generally investigates instrument

Country Status (1)

Country Link
CN (1) CN208489852U (en)

Similar Documents

Publication Publication Date Title
EP2602946B1 (en) Single-fiber bi-directional optical module and passive optical network system
CN101405971B (en) Optical transmission system and optical repeater
CN102714545B (en) Optical transceiver module, passive optical network system, optical fiber detection method and system
US8290364B2 (en) Method, optical network and network device for locating fiber events
CN102932056B (en) The method and apparatus of a kind of sensed light signal performance and diagnosis optical fiber link failure
US9391695B2 (en) Optical network communication system with embedded optical time domain reflectometer and method of operation thereof
US20070230958A1 (en) Method and System for Maintenance of a Passive Optical Network
US20080056714A1 (en) Method and Apparatus for Obtaining an Optical Power Level in a Pon Network
US20130259469A1 (en) Apparatus And Method For Testing Fibers In A PON
CN100542072C (en) The method of testing of passive optical network fault
CN105451840A (en) Optical time domain reflectometer implementation apparatus and system
EP3580861A1 (en) Distribution point unit for high speed communications node
Jirachariyakool et al. Design and implement of GPON-FTTH network for residential condominium
CN102377486A (en) System and method for monitoring non-reflection faults in passive optical network (PON) optical link
CN107070544B (en) Optical module, detection device using the same, and determination method
CN102388549B (en) Method, system and device for detecting optical fiber link in passive optical network
CN110557693B (en) Optical Network Protocol Analyzer
US8340519B2 (en) Passive optical network comprising an optical burst mode receiver
CN102549946B (en) Modulator circuit of optical time domain reflectometer test signal, passive optical network and device
CN210093235U (en) New system of WDM semi-active OLP
CN208489852U (en) The PON optical communication SOT state of termination generally investigates instrument
Hehmann et al. New monitoring concepts for optical access networks
CN104579457A (en) Optical power testing device of PON (passive optical network) system
CN210536850U (en) Optical network protocol analyzer
CN203537392U (en) Optical power testing device in PON system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190212

Termination date: 20220116

CF01 Termination of patent right due to non-payment of annual fee