CN201048421Y - DSLAM port fast testing apparatus - Google Patents

Abstract

The utility model relates to a DSLAM port fast detecting device which comprises N eight-circuit testing plugs, a testing cable, a notebook computer and a testing case.8*N x DSL MODEM circuit boards and a multi-port exchanger are arranged in the testing case. The telephone lines of the 8*N x DSL MODEM circuit boards are respectively connected with the N eight-circuit testing plugs via the testing cable. The data lines of the 8*N x DSL MODEM circuit boards are respectively connected with the 8*N data ports on the exchanger. The other date port on the exchanger is connected with the net port of the notebook computer. The fast connection with high efficiency of the eight DSLAM ports can be completed once by using the eight-circuit testing plugs, and THE batch test is completed through the program which is memorized in the notebook computer. The consistency and the testing efficiency of the testing port are improved. When the value of N is one, eight DSLAM ports can be tested in one minute, and the testing speed is improved by eight times comparing with the prior one-by-one test. When the value of N is two or three, the testing speed is faster. The ADSL constructing work period is effectively shortened. The situation that damaged DSLM ports can not be found is put an end. The utility model is very suitable for a telecom company to use for the acceptance, checking and maintenance in the MDF (distributing frame) projects.

Description

DSLAM port device for fast detecting

Technical field

The utility model is related is testing apparatus about DSLAM (Digital Subscriber Line Access Multiplexer) port performance, is applicable on the machine room MDF of telecommunications company (distributing frame) frame the port of the DSLAM available fast detecting of carrying out whether.Belong to the digital information transmission field.

Background technology

Use xDSL (Digital Subscriber Line) broadband access network technology in a large number among the domestic numerous fixed telephone subscribers at present.The xDSL access technology that is used for broadband access now mainly comprises ADSL (Asymmetrical Digital Subscriber Line)/ADSL2+ (Asymmetrical Digital Subscriber Line 2+), VDSL (Very-high-speed Digital Subscriber Line road), three kinds of technology of SHDSL (single line is to high-bit-rate digital subscriber line).DSLAM (Digital Subscriber Line Access Multiplexer) is as the cut-in convergent equipment of digital subscriber line, can be that the user provides high-speed wideband to insert with different technology according to the different of user's needs and actual track situation, be universal way with ADSL (Asymmetrical Digital Subscriber Line).Because the xDSL technology is to utilize existing telephone system as the physical carrier network, need the MDF (distributing frame) of telecommunications room is transformed for this reason, so that DSLAM (Digital Subscriber Line Access Multiplexer) is sealed in the telephone system, in telecommunications room, adopt connecting system as Fig. 1.

Fig. 1 structure and operation principle are as follows: mixed signal (being made up of high-frequency data signal component and low frequency voice signal components) is transferred through array from outdoor copper cable 6, receive terminal board A by wire jumper 4, terminal board A receives the local side separator board 8 of DSLAM equipment 7 through cable 1 (LINE cable), the high-frequency data signal component directly is sent to local side MODEM (modulator-demodulator) plate 9, finishes the demodulation of data-signal; The low frequency voice signal components is sent to terminal board B through cable 2 (PSTN cable), is sent to terminal board C through the low frequency voice signal components of wire jumper 5, and terminal board C delivers to SPC telephone exchange 10 to the low frequency voice signal by cable 3.Make the fixed telephone subscriber can utilize telephone wire to pass through xDSL (Digital Subscriber Line) broadband access network.

Because the professional high speed development of xDSL, number of users increases very fast, telecommunications room will be built a large amount of DLSAM switches, and the MDF of corresponding test desk machine room also wants a large amount of DSLAM ports of dilatation, and specific implementation is for expanding dress much as the intensive cable type terminal board of terminal board A, B on MDF frame 11.DSLAM cable broken string can often appear in practice of construction; The cable of the PSTN of DSLAM (the low frequency voice signal components is as the cable among Fig. 1 2) and LINE (mixed signal is as the cable among Fig. 1 1) connects instead; Local side DSLAM switch exists fault to cause the user could not get on to the Net or piece xDSL MODEM circuit board can not wait problem synchronously.As can not be in engineering construction or check and be out of order a little that after delivered service department used, it was normally open-minded to have a strong impact on the xDSL business when checking and accepting.

Be the qualification rate that guarantees each port of DSLAM in engineering construction or the maintenance, the detection mode that adopts is: need p-wire be snapped in the terminal board wiring bayonet socket with swaging clamp one by one on the DLSAM of terminal board port, the other end of test the end of a thread is connected with the line interface of xDSL MODEM, the network interface of xDSL MODEM links to each other with the network interface of computer, after above-mentioned cable connects, after will waiting for that also xDSL MODEM and DSLAM port carry out signal Synchronization, again by the dialing of surfing the Net of the broadband dialer software on the computer, open the webpage test of surfing the Net at last.Because xDSL MODEM and DSLAM port signal need 30 seconds synchronously approximately, add steps such as routing, dialing, online, each DSLAM port test is for up to 1 minute, and tester's qualification is had relatively high expectations.Require in the specifications of engineering construction DSLAM is pursued port test, but at present and fail real the execution, because if test the DSLAM equipment of one group of 3000 line cap, 2 people need not to stop continuous operation aptitude test in 50 hours one time a moment yet, are test events that elapsed time is long, labour intensity is high.

Summary of the invention

The purpose of this utility model is in order to solve the too slow difficult problem of adsl port test speed, to provide the DSLAM cable of can finding rapidly of a kind of suitable telecommunications company machine room use to break; The PSTN of DSLAM and the cable of LINE connect instead; Local side DSLAM switch exists fault or piece xDSL MODEM circuit board can not wait the DSLAM port device for fast detecting of problem synchronously.

DSLAM port device for fast detecting of the present utility model comprises 8 * N test plug, test cable and notebook computer, it is characterized in that also including testing cassete, be provided with 8 * N piece xDSLMODEM circuit board and 1 multi port switch in the described testing cassete, the outer line interface of the twisted-pair feeder of described 8 xDSL MODEM circuit boards cable after tested is connected with 8 * N drive test examination plug respectively, the data-interface of 8 * N piece xDSLMODEM circuit board is connected with 8 * N data port on the switch respectively, and another port on the switch is connected with the notebook computer network interface.

(it has autgmentability because of one group of test cell of this tester can be tested 8 DSLAM ports simultaneously, once but the survey line port number can increase with the expansion of test cell), have and to finish the DSLAM port test automatically, and the reservation test result, and only need a computer just can finish fast to advantages such as DSLAM port detections.Checkout gear is plugged on the MDF terminal board by the test plug of preparation, in DSLAM signal inlet port testing cassete, by the testing software on the computer, finishes the efficient connection fast of DSLAM port; Finish batch testing by software again, the density and the testing efficiency of test port have been improved, when N is 1, can be less than promptly testing 8 DSLAM ports in 1 minute, improve 8 times than existing by the road detection speed,, needed to test in 6 hours one time approximately if test the DSLAM equipment of one group of 3000 line cap, as N being elected as 2 or, also can make detection speed faster at 3 o'clock.Effectively shorten the ADSL completion time of project, improved engineering construction quality, stopped the undiscovered situation of bad port of DSLAM, thereby guaranteed the accuracy and the reliability of DLSAM port.Being fit to very much telecommunications company uses MDF (distributing frame) acceptance of work and maintenance and inspection.

Description of drawings

Fig. 1 is the schematic diagram that existing user inserts DSLAM equipment;

Fig. 2 is a structural representation of using the testing equipment of a kind of embodiment of the present utility model;

Fig. 3 is the structural representation of testing cassete;

Fig. 4 is the enlarged drawing of terminal board A, and 8 contact points in the contact-making surface are represented with D0～D7 respectively.Contact point among Fig. 4 in test respectively with Fig. 2 in the test contact chip LA0～LA7 of testing cassete closely contact.;

Fig. 5 is a kind of testing software schematic flow sheet of using among the utility model embodiment

Embodiment

As shown in Figure 2, test plug KA introduces the DSLAM signal in the testing cassete C through D0～D7 of terminal board A.8 xDSL MODEM circuit boards in the testing cassete C simultaneously and the commencing signal of the corresponding port of DSLAM synchronous, through certain hour (about 0.5 minute), 8 xDSL MODEM circuit boards can all reach synchronous regime with DSLAM, when xDSL MODEM circuit board detecting after synchronizing signal, 8 xDSL MODEM circuit boards are enabled built-in dialer software automatically, and (account number is imported in advance by the tester, it is just passable only to need to import once preservation when bringing into use, wherein account number is multi-user's account number), these 8 xDSLMODEM circuit boards are enabled address translation feature (proxy surfing function), can go out the private network IP address translation of xDSL MODEM notebook computer that circuit board connects, realize user's online.8 xDSL MODEM circuit boards converge on the Private Branch Exchange PBX in the testing cassete by netting twine, and Private Branch Exchange PBX is connected on the notebook computer by netting twine.Testing software is by ad hoc network program, and the control IP datagram is civilian to realize online through different xDSL MODEM circuit boards successively by switch, with the connectivity of checking network, thereby reaches the purpose of checking different DSLAM port availabilities.Its result can preserve test result simultaneously by the test person connectivity effect of software announcement.On the testing cassete C, each interface that connects lead JA0～JA7 can be serially connected with push-button switch, so that disconnect or be communicated with the physics contact relation of the telephone wire and the lead JA0～JA7 of 8 xDSL MODEM circuit boards, can be under some particular requirements, the corresponding relation of test cable and DSLAM device port.

(1) hardware components

The utility model comprises N 8 drive tests examination plug, several main parts compositions such as test cable, testing cassete and notebook computer.

Test plug

Test plug is responsible for simultaneously 8 road DSLAM signals being drawn (because of existing each terminal board is provided with No. 8 telephone wires, so it is supporting with it to try plug with 8 drive tests) from the terminal board of MDF, is connected with test interface on the testing cassete respectively by testing cable.The main points of test adaptor head are need not block line one by one on terminal board, and it has gathered 8 drive tests examination plug, can be inserted into disposable, fast in 8 ports of MDF terminal board, and keep reliable contact.

Testing cassete

Referring to accompanying drawing 3, testing cassete among Fig. 3 31 is built-in polylith xDSL MODEM circuit board 32 and 1 multi port switch 33 is responsible for and DSLAM carries out functions such as signal Synchronization, automatic dialup and packet forwarding.The telephone wire input of every xDSL MODEM circuit board 32 is connected with the p-wire interface 35 of testing cassete respectively through twisted-pair feeder 34, and the data output end of every xDSL MODEM circuit board 32 is connected with the data-interface of switch 33 respectively through 5 class lines (netting twine) 36.Every xDSL MODEM circuit board 32 is by enabling inner broadband dial feature, make its with DSLAM synchronously after, can automatic dialup.XDSL MODEM circuit board is all enabled address translation feature simultaneously, can be forwarded to the packet that data-interface is received on the internet network, realizes online.Also available many xDSLMODEM products of described xDSL MODEM circuit board replace.

Multi port switch 33 is responsible for gathering the data-signal of each piece xDSL MODEM circuit board 32, and links to each other with notebook computer (test computer) 38 by the RJ45 data-interface 37 of testing cassete.Testing cassete 31 external connections can be provided with 3 interfaces, power interface, p-wire interface 35, a data interface 37.P-wire interface 35 is connected with test plug 40 by test cable 39, is responsible for the signal of introducing from DSLAM is linked into respectively on the different piece xDSL MODEM circuit boards in order.Also can and between p-wire interface 35 and corresponding xDSL MODEM circuit board 32 one of serial connection connect key switch, can 8 xDSL MODEM circuit boards 32 and corresponding outer line interface be continued easily and disconnect, continue under the default conditions.Testing cassete data-interface 37 is that unification provided a RJ45 FPDP to test computer, to finish the data forwarding in the test process after each piece xDSL MODEM circuit board was converged through multi port switch.

(2) test cable

Test cable 39 is main is responsible for linking up test plug and testing cassetes, and with to being unit, two ends respectively with corresponding one by one linking to each other of test interface 35 of the interface and the testing cassete of test plug 40.

(3) notebook computer

Notebook computer mainly is responsible for providing the hardware platform of testing software operation, and it also can be to realize by special electronic circuits such as single-chip microcomputer.The notebook computer network interface links to each other with testing cassete 31 by RJ45 port 37.This notebook computer 38 also can be with desktop computer or by the replacements such as single-chip microcomputer of supporting following program.

(4) software is realized

The program part of native system is to design according to test request is supporting, use man-machine dialog interface, the network interface of every xDSLMODEM circuit board is provided with the different network addresss respectively with the network interface of notebook computer, for the design of simplifying procedures, this program all is set to the all-network address in the same network segment, for example in 192.168.1.0 (subnet mask the is 255.255.255.0) network segment, the network interface of every xDSL MODEM circuit board can set gradually according to the telephone line interface order and be 192.168.1.1～192.168.1.8, the network address of notebook computer can be set to 192.168.1.100, and the gateway address of notebook computer is initially set to 192.168.1.1.

Because the IP test packet that the setting of notebook gateway address has determined the notebook testing software to send is which platform xDSL MODEM circuit board to be connected to DSLAM by, and then verifies whether corresponding DSLAM port is available.Testing software must be able to accomplish after the test beginning for this reason, automatically change the notebook network gateway, so that select different xDSL MODEM circuit boards next network port successively as own IP message, according to the response condition (such as the connectedness that authenticates to public's webpage by the ping order) of IP message, judge that automatically xDSL MODEM connects the availability performance of DSLAM port simultaneously.In test process, testing software can require to select the preservation of test result according to the tester, and preserving form is forms such as text or excel file.

In order to ensure the availability performance of fast automatic judgement network with finish online test automatically and preserve test result, the man-machine interface of the testing software of described notebook computer mainly is provided with: parts such as " beginning test " button, " test result preservation " button, " test parameter preservation " button, " EOT " button, " network parameter and environmental parameter " demonstration, " test result " demonstration.During detection, notebook computer is carried out following steps (with a test cell is that 8 DSLAM ports are example, and its logical construction is referring to Fig. 5):

Step 1: carry out circuit connection work by the tester, replace subscribers feeder to insert on certain the piece terminal board that needs detection the 8 drive tests examination plug of test adaptor head, testing cassete is connected with the DSLAM port, and connects the testing cassete power supply, make xDSL MODEM circuit board and DSLAM synchronous; Click " test program " icon, computer shows man-machine dialog interface;

Step 2: read network parameter and the environmental parameter that this test program presets from notebook computer, and the initialization test program;

Step 3: the network ip address and the test target network address of whether being revised notebook computer by tester's decision change test parameter, directly do not enter step 6 if do not revise test parameter then click after " beginning test " connects button.Then enter step 4 if revise test parameter, in step 4, revise behind the network parameter as need preservation modification result then to click " test parameter preservation " button and preserve parameter, do not preserve and then directly enter step 6, preserve if select, then enter step 5, the parameter of revising is write the notebook hard disk, click " beginning test " again and connect button and enter step 6;

Step 6: test program is set the circulation of an i=1 to i=8;

Step 7: when the i time circulation beginning, at first revise own network attribute automatically by test program.The network gateway that makes oneself is the network interface address of i piece xDSL MODEM circuit board, network default route in the notebook just points to the network interface of i piece xDSL MODEM circuit board like this, thereby can be sent to i piece xDSL MODEM circuit board to corresponding IP test packet by multi port switch;

Step 8: automatically i piece xDSL MODEM circuit board is sent the IP test signal by the test program on the notebook computer, after i piece xDSL MODEM circuit board is received the IP test signal.Automatically by telephone wire the IP message is turned to the DSLAM corresponding port, DSLAM is continuing the message biography to destination network addresses after receiving message;

Step 9: according to the return situation of IP test signal, make the whether unimpeded judgement of network, to reach the purpose of judging that the DSLAM corresponding port is whether available to destination network addresses;

Step 10: be that test result is obstructed, show that on test interface test DSLAM port is unavailable;

Step 11: be that test result is logical, show that on test interface testing the DSLAM port can use;

Step 12: test program i add 1 return step 7 restart the circulation, to test next DSLAM port.If i＞8 then enter step 13;

Step 13: step 13 finishes the test loop of these 8 ports, enters step 14;

Step 14: by preserving test result by " test result preservation " button;

Step 15: whether decision proceeds test, if proceed test, then enters step 16, otherwise enters step 17;

Step 16: test plug changed be inserted into next group terminal board interface, click " beginning test " and connect button and enter step 6, restart next group DSLAM port test,

Step 17: click " EOT " button, withdraw from test program.

Claims (1)

1. a DSLAM port device for fast detecting comprises N 8 drive tests examination plug, test cable, notebook computer, it is characterized in that also comprising testing cassete, be provided with 8 * N piece xDSL MODEM circuit board and 1 multi port switch in the described testing cassete, the telephone wire of described 8 * N piece xDSL MODEM circuit board cable after tested is connected with N piece 8 drive tests examination plug respectively, the data wire of 8 * N piece xDSL MODEM circuit board is connected with 8 * N data port on the switch respectively, and another FPDP on the switch is connected with the notebook computer network interface.

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