CN101335569A

CN101335569A - Passive optical fiber network equipment capable of displaying on-line state and logic link identification

Info

Publication number: CN101335569A
Application number: CNA2007100577926A
Authority: CN
Inventors: 卢天祥
Original assignee: YINGBAODA ZIXUN (TIANJIN) CO Ltd
Current assignee: YINGBAODA ZIXUN (TIANJIN) CO Ltd; Inventec Multimedia and Telecom Tianjin Co Ltd; Inventec Multimedia and Telecom Corp
Priority date: 2007-06-28
Filing date: 2007-06-28
Publication date: 2008-12-31

Abstract

The invention discloses passive optical network equipment that can display online state and logical link identifier, and aims at solving the problem that the equipment in the prior passive optical network system fails to display the online state and the logical link identifier. According to the characteristics of the multi-point control protocol and the logical link identifier, the invention combines a programmable logic device and a display unit to display the passive optical network equipment of the on-line state and the logical link identifier, thus leading the passive optical network equipment to achieve the efficacy of displaying the online state and the logical link identifier.

Description

Possesses the passive fiber network equipment that shows on line state and LLID

Technical field

(Passive Optical Network, PON) equipment relate in particular to a kind of the possess on line state of demonstration and LLID (Logical Link Identifiers, passive fiber network equipment LLID) to the present invention relates to a kind of passive fiber network.

Background technology

Along with the rapid growth of fhe global the Internet, legacy network can't satisfy high speed information transmission demands of applications.The variation that the maturation of opto-electronics technology and product are used provides a large amount of frequency ranges for the fhe global the Internet of sharply growing up in good time.Compare with the traditional cable transmission means, characteristics such as Optical Fiber Transmission has that capacity is big, loss is little, anti-electromagnetic interference capability is strong, therefore, along with the cost of Optical Fiber Transmission progressively descends, the network fiberization development trend that is inevitable, various broadband networks based on optical fiber (FTTx) technology competitively occurs.The FTTx technology is mainly used in the access network fiberize, scope from regional telecommunications room local side apparatus to subscriber terminal equipment, important local side apparatus is for comprising optical line terminal (Optical LineTerminal, OLT), subscriber terminal equipment is optical network unit (Optical Network Unit, ONU) or Optical Network Terminal (Optical Network Terminal, ONT).

Fiber topology mainly contains dual mode, and first kind of mode is directly to connect with optical fiber, belongs to point-to-point (Point to Point, P2P) topology of form, have characteristics such as work is simple, manageable, optical fiber frequency range (exclusive) is proprietary, because of the optical fiber use amount is many, so cost investment is bigger; The second way is the PON technology, the entity topological diagram as shown in Figure 1, belong to point-to-multipoint (Point to Multi-Point, P2MP) topology of form, to be sent to the ONU102 of client from the light path demultiplexing of OLT100 with optical branching device (Optical Splitter) 101, its optical fiber use amount is less, saves and builds the cost of putting maintenance, therefore is expected most with the PON technology in fiber topology.

In the PON market, on the OLT of local side,, mainly be to obtain at present by logining OLT management software interface for the information of ONU on line state and customer identification.This kind mode causes the personnel that only possess administration authority just can login the information that OLT obtains ONU on line state and customer identification, is positioned at the general attendant who safeguards on first line and will obtains this information and then must see through the personnel that possess administration authority and just be carried out plant maintenance.The not only loaded down with trivial details and management inconvenience of maintenance process also can't obtain immediately and dispose after the broken string situation take place thus.Only provide basic on line state cresset to show on the ONU of common customer end, can't providing further, customer identification information supplies webmaster personnel reference.So when there is problem in system, increase the difficulty of detection on foot, real non-good design, and demand urgently being improved.

After cooperating following a large amount of use of PON system, can be more manageable with safeguard this system, the problem every to be solved that this case inventor derives in view of above-mentioned conventional techniques is necessary to invent the PON equipment that can conveniently detect and can show on line state and LLID.

Summary of the invention

The present invention is a kind of passive fiber network equipment that possesses demonstration on line state and LLID, purpose is the characteristic by Multi-point Control Protocol and LLID, in conjunction with programmable logic device and display unit to finish the passive fiber network equipment that can judge on line state and customer identification according to display unit, in the passive fiber network system, passive fiber network equipment can't show the problem of on line state and LLID in the past in solution.

For achieving the above object, the present invention proposes a kind of passive fiber network equipment that shows on line state and LLID that possesses, wherein this passive fiber network equipment is meant optical line terminal and optical network unit, below receives flow process at the composition of optical line terminal and optical network unit and signal respectively and is described further.

In optical line terminal, formed by light path, circuit, optical transceiver module, multiplex (MUX)/de-multiplexer, OLT system single-chip, central processing unit, programmable logic device and display unit respectively, and according on line state and LLID signal determining on line state and customer identification.When optical line terminal is received light signal via the optical fiber of light path, light signal can be sent to optical transceiver module in order to carry out the conversion between light signal and the differential wave, and the differential wave after will changing via multiplex (MUX)/de-multiplexer is separated multitask and is become interface signal and deliver to the OLT system single-chip, the OLT system single-chip can be converted to data packet signal with interface signal and handle so that carry out package, the group of handling at package/separate in the process of packet, can obtain on line state signal and LLID signal, and these two signals are sent to the central processing unit encoding process, corresponding several status signals of output afterwards are to programmable logic device, programmable logic device is deciphered according to several status signals that received, logical operation also produces corresponding triggering signal in order to trigger display unit, reaches the effect that optical line terminal can show on line state and LLID.

In optical network unit, comprise by light path, circuit, optical transceiver module, optical network unit system single chip, central processing unit, programmable logic device and display unit and being formed; According to LLID signal determining customer identification.Its assembly composition and signal processing flow and optical line terminal are similar, do not repeat them here, below partly explaining only with regard to difference.Aspect the assembly composition, the optical network unit optical transceiver module adopts the laser of more cheap 1.3um wavelength, in order to reduce the cost of client device.In addition, the optical network unit system single chip is integrated multiplex (MUX)/de-multiplexer, simplifies the hardware structure of optical network unit.Therefore, receive in the flow process at signal, the differential wave after optical transceiver module directly will be changed is delivered to the optical network unit system single chip, converts interface signal to by the multiplex (MUX)/de-multiplexer in the optical network unit system single chip.

In preferred embodiment of the present invention, programmable logic device is a combined type programmable logic device, and the display unit of optical line terminal is by being made up of matrix light-emitting diode or LCD; The display unit of optical network unit then is made up of at least one light-emitting diode.

In the network architecture of point-to-multipoint, contain passive fiber network equipment of the present invention, can obtain optical communication equipment on line state and customer identification at the optical line terminal that is positioned at local side, the optical network unit that is positioned at client then can demonstration itself LLID so that provide the network management personnel of local side to mediate the required customer identification information of network failure.When the online generation problem of optical network unit, the optical network unit customer identification information that the local side network management personnel can provide via the user is observed the on line state that the optical line terminal display unit that is attached thereto is provided, and further differentiates the problem place.

For further the present invention being had more deep explanation, according to the following drawings, description of drawings, and specific embodiment is described in detail as follows.

Description of drawings

Fig. 1 is that PON system mid point is to multidrop network entity topology embodiment schematic diagram.

Fig. 2 is that PON system mid point is to multidrop network data packet delivery embodiment schematic diagram.

Fig. 3 is the data packet delivery embodiment schematic diagram between ONU in the PON system.

Fig. 4 is the automatic discovery procedure embodiment schematic diagram of ONU in the PON system.

Fig. 5 is the schematic diagram that PON equipment of the present invention is applied to OLT.

Fig. 6 is the schematic diagram that PON equipment of the present invention is applied to ONU.

Fig. 7 is the display mode embodiment schematic diagram that PON equipment of the present invention is applied to OLT.

Fig. 8 is the display mode embodiment schematic diagram that PON equipment of the present invention is applied to ONU.

Fig. 9 is the display mode embodiment schematic diagram that PON equipment of the present invention is applied to OLT and ONU.

Embodiment

The present invention is described in further detail below in conjunction with the drawings and specific embodiments.

The present invention proposes a kind of PON equipment that shows on line state and LLID that possesses, the PON system is mainly a kind of topology of P2MP form as previously mentioned, following conjunction with figs. illustrates in the PON system, LLID is institute's role in the data packet delivery process, and to ONU how (Multi-Point Control Protocol, MPCP) LLID that obtains OLT and distributed does simple declaration by Multi-point Control Protocol.

At first, to come the data packet delivery process in the PON system is described by Fig. 2, comprise in this figure that a local side apparatus OLT201, optical branching device 203, four client device ONU205 and four users 208 are common to form a typical PON system, wherein user 208 represents the device that is connected with ONU, for example: devices such as computer, handheld personal.Because PON is the topology of P2MP form, therefore OLT transmission data download bag is to transmit in the mode of broadcasting to each user, OLT201 transmits data download bag 202 and through optical branching device 203 light signal demultiplexing data download bag 204 is passed to all ONU205, whether each ONU205 can be the data download bag of oneself and only receive one's own data download bag 206 according to the identification of the LLID in the multi-path download packet 204, then one's own data download bag 206 is passed to each user 208, wherein LLID is that ONU205 is distributed by OLT201 when adding this PON.When each user 208 uploads data to OLT201 via ONU205, uploading packet 207 and can be pooled in same the optical fiber because of each user, therefore to adopt TCM (Time-Division Multiplexing, TDM) or the wavelength multitask (Wavelength Division Multiplexing, mode WDM) is transmitted to avoid a plurality of packets 207 uploaded to produce collision.

After the data packet delivery process between explanation OLT and the ONU, next will come the data packet delivery process between ONU in the PON system is described by Fig. 3, by learning among the figure that this PON system is by a local side apparatus OLT304, an optical branching device 203 and three client device ONU300 form, wherein ONU300 comprises a medium access control (Media Access Control, MAC) port 301 and point-to-point simulator 302 then comprise a point-to-point simulator 305 in OLT304, three corresponding with ONU300 respectively medium access control ports 306 and ethernet bridging device 307.When a packet is sent in the ONU_A300 tendency to develop to ONU_B300, after data can be enclosed port numbers and LLID via medium access control port 301 and point-to-point simulator 302, be packaged into a packet 303 and transmit via optical fiber, enter the point-to-point simulator 305 parsing LLID of OLT304 again through optical branching device 203, then deliver to corresponding medium access control port 306, and via ethernet bridging device 307 transfer of data bags to the ONU_B300 port numbers that pairing medium access control port 306 is enclosed ONU_B in OLT, after enclosing the LLID of ONU_B300 via point-to-point simulator 305 again, send packet 308 with broadcast mode, and the point-to-point simulator 302 of ONU_A300 and ONU_C300 receives that packet 308 can give up not one's own packet 308 after judging its LLID.

Explanation by above-mentioned two kinds of data packet delivery processes can be learnt, in the point-to-point simulation of LLID in the P2MP topological structure, the role who is playing the part of customer identification, LLID is that OLT by local side is distributed in PON, and inform the ONU of client according to MPCP, therefore, below will by Fig. 4 with the automatic discovery procedure of ONU in the PON system illustrate ONU how by MPCP obtain OLT distributed LLID.The automatic discovery procedure of ONU is according to the IEEE802.3ah standard, reach the automatic discovery of ONU with the MPCP communications protocol, can learn that from figure the automatic discovery procedure of whole ONU has comprised discovery packet 401, allow discovery timeslot 402, random delay 403, register requirement packet 404, response registration packet 405, confirm packet 406, data packet delivery flow processs such as accreditation verification packet 407, at first packet 401 is found in OLT broadcasting, wherein be with OLT to allow discovery timeslot 402, tell when initiate ONU can register, after initiate ONU receives, after entering permission discovery timeslot 402, for fear of a plurality of initiate ONU register simultaneously cause the collision, therefore want random delay a period of time 403, then sending register requirement packet 404 again registers to OLT, OLT receives register requirement packet 404 in allowing discovery timeslot 402 after, can send include the LLID that distributes to this ONU response registration packet 405 to ONU, then OLT sends the affirmation packet 406 of standard again, last ONU passback accreditation verification packet 407 is given OLT, so far finishes the automatic discovery of ONU.

Based on the ubiquitous defective of PON equipment in the known technology PON system, interrupt in case the client reaction network is online, the network management personnel of local side must login the OLT administration interface that is attached thereto just can obtain the client on line state, and does further disposal.

So the present invention proposes a kind of PON equipment that shows on line state and LLID that possesses, mainly provide the network management personnel and can obtain client state by the display unit of OLT, remove the complicated processes of logining administration interface from, and the general user also can obtain the LLID that obtains via OLT by the display unit of ONU, required customer identification information when providing the network management personnel to detect.

See also Fig. 5 and Fig. 6, possesses the PON equipment that shows on line state and LLID for the present invention is a kind of, be illustrated in figure 5 as the schematic diagram that PON equipment is applied to OLT500, mainly formed by assemblies such as circuit 501, light path 502, optical transceiver module 503, multiplex (MUX)/de-multiplexer 504, OLT system single chip 505, central processing unit 507, programmable logic device 508 and display units 509.Wherein, optical transceiver module 503 is in order to carry out the conversion between light signal and the differential wave; Multiplex (MUX)/de-multiplexer 504, in order to carry out the conversion between differential wave and the interface signal, wherein interface signal is ten interfaces (Ten Bit Interface, TBI), kilomegabit Media Independent Interface (Gigabit MediaIndependent Interface, GMII) and simplify the signal form of interface, wherein simplify interface comprise ten simplify interface (Reduced TBI, RTBI) and the kilomegabit medium independently simplify interface (ReducedGMII, RGMII); OLT system single chip 505, for meeting the IEEE802.3ah standard, be used for handling medium access control (the Media Access Control of PON system, MAC), dynamic band width configuration (Dynamic Bandwidth Allocation, DBA), Operation Administration and Maintenance (Operations, Administration and Maintenance, OAM) and the system single chip of data encryption (Security), in order to carry out the conversion of aforementioned interface signal and data packet signal and to organize/separate packet, and in the process of organizing/separate packet, obtain on line state signal and LLID signal; Central processing unit 507 receives on line state and LLID signal 506 that OLT system single chip 505 is transmitted, corresponding several status signals of encoded processing back output; Programmable logic device 508 is the combined type programmable logic device, receives several status signals and these status signal decodings, logical operation are produced corresponding triggering signal; Display unit 509, be LCD or light-emitting diode (Light-Emitting Diode, LED) form, receive corresponding triggering signal in order to trigger on line state and the LLID that display unit 509 shows this PON equipment, the display unit 509 in OLT500 is that quadruple eight matrix L ED are in order to the cresset of different colours and on line state and the LLID that flickers and show 32 ONU.

As shown in Figure 5, the light signal that OLT500 receives from optical fiber transmitted via light path 502, this light signal enters the amplifier of optical transceiver module 503 inside, after filter and decoder become differential electrical signals, via multiplex (MUX)/de-multiplexer 504 differential electrical signals is converted to TBI or GMII signal again, be sent to the OLT system single chip 505 that meets the IEEE802.3ah standard, this OLT system single chip 505 is responsible for handling the MPCP agreement and on line state and LLID signal 506 is sent to central processing unit 507, on line state that central processing unit 507 reception OLT system single chips 505 are transmitted and LLID signal 506 are through after the encoding process, transmit several status signals to programmable logic device 508, programmable logic device 508 receives several status signals that these central processing units 507 are exported and to these status signals decoding, export display unit 509 after the logical operation to, last display unit 509 is deciphered according to programmable logic device 508, the signal of being exported after the logical operation shows on line state and customer identification.

As shown in Figure 6, for PON equipment is applied to the schematic diagram of ONU600, mainly formed by circuit 602, light path 601, optical transceiver module 603, ONU system single chip 604, central processing unit 606, programmable logic device 607 and display unit 608; Wherein the function of each assembly and aforesaid OLT are similar, therefore repeat no more, and only do explanation with regard to the part of difference.In ONU600, ONU system single chip 604 is integrated multiplex (MUX)/de-multiplexer, therefore, ONU system single chip 604 is in order to carry out conversion between differential wave and the interface signal and group/separate packet, and organize/separate in execution obtain LLID in the data packet procedures after, LLID signal 605 is sent to CPU 606.In addition, in display unit 608 the LED row of forming with five LED, with the variation of extinguishing 32 kinds of LLID of expression of cresset.

After light signal is sent to optical transceiver module 603 via light path 602, this light signal enters the amplifier of optical transceiver module 603 inside, after filter and decoder become differential electrical signals, be sent to the ONU system single chip 604 that meets the IEEE802.3ah standard, and after via the multiplex (MUX)/de-multiplexer of ONU system single chip 604 inside differential electrical signals being converted to TBI or GMII signal, being sent to medium access controller is responsible for handling MPCP and LLID signal 605 is sent to central processing unit 606, the LLID signal 605 that central processing unit 606 reception ONU system single chips 604 are transmitted is through after the encoding process, transmit several status signals to programmable logic device 607, programmable logic device 607 receives several status signals that these central processing units 606 are exported and to those status signals decoding, export display unit 608 after the logical operation to, last display unit 608 is deciphered according to programmable logic device 607, the signal of being exported after the logical operation shows customer identification.

The display mode of OLT in the PON equipment of the present invention, see also Fig. 7, be convenient expression, we represent the LED and the state of different colours in the drawings with different sites form, wherein the display unit of the OLT700 of local side is matrix L ED701, this matrix L ED701 has 32 LED, numbering is denoted as 1-32 from left to right from top to bottom respectively, each LED is used for representing the ONU of a correspondence respectively, therefore each OLT700 can represent 32 client ONU states at least, but this only is a kind of embodiment, in fact different designs can be arranged according to different demands, wherein green light 702 representatives are online normal, green light glimmers in the transmission of 703 representative data bags, red light 704 representative not online or can't be online and cresset to extinguish 705 representatives unallocated online; Numbering 21, numbering 25, numbering 29 send out a warning and 704 represent the ONU of these three numberings can't be online.

The display mode of ONU in the PON equipment of the present invention, see also Fig. 8, the display unit system of client ONU800 is made up of 5 LED801,5 LED are numbering 4, numbering 3, numbering 2, numbering 1, numbering 0 from top to bottom in regular turn, represent 24 powers, 23 powers, 22 powers, 21 power, 20 power respectively, in order to show 32 kinds of LLID.

As shown in the figure, for instance when numbering 4, numbering 3, numbering 2 and number 1 LED when lighting simultaneously, represent 24 powers to add that 23 powers add that 22 powers add the sum total of 21 power, so the LLID of this ONU is 31, the user just can carry out the customer identification to ONU800 according to this very like a cork voluntarily.

Below lift the display mode that an object lesson illustrates PON equipment of the present invention, see also Fig. 4, Fig. 5, Fig. 6 and Fig. 9 figure, when ONU800 adds the fiber optic network topology, can receive the discovery packet 401 that OLT700 broadcasts via optical fiber 901, find that packet 401 enters optical transceiver module 603 by the ONU light path 602 that connects optical fiber 901 and is converted to differential electrical signals, ONU system single chip 604 receives this differential some signal also according to receiving permission discovery timeslot 402 information of finding in the packet 401, and random delay a period of times 403 back sends register requirement packet 404 again after entering permission discovery timeslot 402.

The light path 502 that register requirement packet 404 is sent to OLT via optical fiber 901 enters optical transceiver module 503 and is converted to differential wave, multiplex (MUX)/de-multiplexer 504 receives differential wave, and differential wave is converted to the signal of TBI or GMII, the LLID that OLT system single chip 505 receives the procotol of TBI or GMII signal processing MPCP and disposes a numbering 31 corresponds to ONU, be sent to ONU in the LLID adding response registration packet 405 with numbering 31, and show the LED of green light flicker 703 in matrix L ED701 numbering 31.OLT delay a period of times after transmitting response registration packet 405 transmit and confirm packet 406.

After ONU receives the response registration packet 405 that OLT700 transmits via optical fiber 901, in the point-to-point simulator of ONU system single chip 604, LLID is taken out from packet, obtain LLID and be numbering 31 back output logic link id signals 605, and transmit accreditation verification packet 407 to OLT.Behind the LLID that central processing unit 606 receives by 604 outputs of ONU system single chip, handle several status signals of output through decoding, after programmable logic device 607 receives several status signals of central processing unit 606 outputs, several status signal decodings, logical operation are produced at least one triggering signal, display unit 608 receives this triggering signal, triggers the LED of numbering 4, numbering 3, numbering 2, numbering 1.

After OLT received accreditation verification packet 407, the LED of matrix L ED701 numbering 31 became green light 702 by green light flicker 703.The LED of matrix L ED701 numbering 31 becomes red light 704 by green light flicker 703 if MPCP reciprocal process is failed then.

So far, when the user of client finds online interruption, the network management personnel of information notification local side that can the display unit 801 of ONU800 is shown, obtain the LLID of client feedback as the network management personnel after, can learn that the client of present numbering 31 can't be online but not online by the display unit 701 of OLT700.

Though embodiments of the invention as mentioned above; but it is not in order to limit the present invention; any technical staff who is familiar with the technical field of the invention; without departing from the spirit and scope of the present invention; should also can make certain changes and improvements, therefore scope of patent protection fibrous root of the present invention is as the criterion according to the appended claim person of defining of this specification.

Claims

1, a kind of passive fiber network equipment that possesses demonstration on line state and LLID, this passive fiber network equipment is in order to receive the light signal from an above optical network unit of passive fiber network system, and wherein this passive fiber network equipment comprises at least:

One optical transceiver module is in order to carry out the conversion between this light signal and the differential wave;

One multiplex (MUX)/de-multiplexer is in order to carry out the conversion between this differential wave and the interface signal;

One OLT system single-chip in order to the conversion of carrying out this interface signal and a data packet signal and group/separate packet, and in the process of organizing/separate packet, obtains an on line state signal and a LLID signal;

One central processing unit receives this on line state signal and this LLID signal that this OLT system single-chip is transmitted, the corresponding a plurality of status signals of output after the encoded processing;

One programmable logic device receives corresponding a plurality of status signal and these status signal decodings, logical operation is produced corresponding at least one triggering signal; And

One display unit receives this at least one triggering signal, triggers on line state and the LLID of this display unit in order to show this passive fiber network equipment;

Wherein, link up alternately by Multi-point Control Protocol between this passive fiber network equipment and the described optical network unit.

2, the passive fiber network equipment that possesses demonstration on line state and LLID as claimed in claim 1, wherein this interface signal is ten interfaces, kilomegabit Media Independent Interface and the signal format of simplifying interface.

3, the passive fiber network equipment that possesses demonstration on line state and LLID as claimed in claim 1, wherein this OLT system single-chip meets the IEEE802.3ah standard, is used for handling medium access control, dynamic band width configuration, Operation Administration and Maintenance and the data encryption of passive fiber network system.

4, as claimed in claim 1 possess the passive fiber network equipment that shows on line state and LLID, and wherein to be described optical network unit finish the state that is produced behind the mutual communication process of described Multi-point Control Protocol to this on line state signal in described passive fiber network system.

5, the passive fiber network equipment that possesses demonstration on line state and LLID as claimed in claim 1, wherein this LLID is after described optical network unit adds described passive fiber network system, by the identification marking of this passive fiber network devices dispatch.

6, the passive fiber network equipment that possesses demonstration on line state and LLID as claimed in claim 1, wherein this programmable logic device is a combined type programmable logic device.

7, the passive fiber network equipment that possesses demonstration on line state and LLID as claimed in claim 1, wherein this display unit is a LCD or at least one light-emitting diode.

8, the passive fiber network equipment that possesses demonstration on line state and LLID as claimed in claim 1, wherein this passive fiber network equipment is an optical line terminal.

9, a kind of passive fiber network equipment that possesses demonstration on line state and LLID, this passive fiber network equipment is in order to receive the light signal from an optical line terminal of passive fiber network system, and wherein this passive fiber network equipment comprises at least:

One optical network unit system single chip in order to carrying out conversion between this differential wave and the interface signal and group/separate packet, and is organized/is separated in the data packet procedures in execution, obtains a LLID signal;

One central processing unit receives this LLID signal that this OLT system single-chip is transmitted, the corresponding a plurality of status signals of output after the encoded processing;

One programmable logic device receives corresponding a plurality of status signal and those status signal decodings, logical operation is produced corresponding at least one triggering signal; And

One display unit receives this at least one triggering signal, triggers on line state and the LLID of display unit in order to show this passive fiber network equipment;

Wherein, link up alternately by Multi-point Control Protocol between this passive fiber network equipment and this optical line terminal.

10, the passive fiber network equipment that possesses demonstration on line state and LLID as claimed in claim 9, wherein this optical network unit system single chip meets the medium access control and the Multi-point Control Protocol of IEEE802.3ah standard, is used for linking up with this optical line terminal.

11, the passive fiber network equipment that possesses demonstration on line state and LLID as claimed in claim 9, wherein this LLID is after this passive fiber network equipment adds the passive fiber network system, by the identification marking of this optical line terminal assignment.

12, the passive fiber network equipment that possesses demonstration on line state and LLID as claimed in claim 9, wherein this programmable logic device is a combined type programmable logic device.

13, the passive fiber network equipment that possesses demonstration on line state and LLID as claimed in claim 9, wherein this display unit is a LCD or at least one light-emitting diode.

14, the passive fiber network equipment that possesses demonstration on line state and LLID as claimed in claim 9, wherein this passive fiber network equipment is an optical network unit.