Tester system for subscriber accommodation module and test method for subscriber accommodation module

Abstract

To confirm the normality of a subscriber accommodation module with a simple configuration without the need for installation, setting, operation and management of a test control terminal or a subscriber exchange and to reduce the cost and operation required for a test for confirming the normality.SOLUTION: The testing device includes a termination device testing device 15 for testing an intra-office subscriber line termination device 11 (termination device) which is housed in a subscriber housing module 14 and in which a load 51 for fixing a subscriber terminal to either a normal state or a failure state is set, and a testing device control part 34 for making the termination device testing device 15 execute a test.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a tester system for a subscriber accommodation module and a test method for a subscriber accommodation module. [Background technology]

[0002] The remote subscriber accommodation module (RSBM: Remote Subscriber Module) that accommodates the subscriber communication terminal is connected to the subscriber exchange (ASM (Architectural STM Module) / SBM (Subscriber Module)) installed on the upper network side via the subscriber line distribution module (LXM: Subscriber Line Cross Connect Module). The remote subscriber accommodation module has an office channel unit (OCU: Office Channel Unit) installed in the remote subscriber accommodation module that is connected to the subscriber terminal.

[0003] To check the normality of the remote subscriber accommodation module, first, a random bit pattern (pattern) is sent from the local exchange via the subscriber distribution module to the intra-office subscriber line termination device mounted on the remote subscriber accommodation module. The sent random bit pattern is returned by the intra-office subscriber line termination device, and the local exchange receives the random bit pattern returned by the intra-office subscriber line termination device.

[0004] By checking that there is no difference between the transmitted and received random bit patterns, the normality of the remote subscriber accommodation module can be confirmed (see, for example, Non-Patent Document 1).

[0005] The remote subscriber accommodation module that accommodates the subscriber communication terminal is equipped with a test device (RLTC: Remote line test Circuit) that tests the normality of the subscriber accommodation line. The test device is connected to a test control terminal (TWS: Test Work Station) that controls the test device via the local exchange and the subscriber distribution module.

[0006] A known method for checking the normality of the test equipment installed in a remote subscriber accommodation module is to operate the test equipment installed in the remote subscriber accommodation module from a test control terminal via a subscriber exchange and a subscriber system distribution module, and check the normality (see, for example, non-patent document 2). [Prior art documents] [Non-patent literature]

[0007] [Non-Patent Document 1] “Technical Reference: INS Network Service Interface”, [online], NTT Publication, [Retrieved August 1, 2022], Internet<https: / / web116.jp / shop / annai / gisanshi / insnet / pdf / inx5 / isdn_gisanshi_5-1.pdf> [Non-patent document 2] "Hiroyuki Fujita, Shigeru Hosoda, Mitsuhiro Takano, Ichiro Ikushima", "Optical Subscriber Line Multiplexing Transmission Equipment", Jan. 8, 2019. ,[online],[Retrieved August 1, 2022], Internet<https: / / www.hitachihyoron.com / jp / pdf / 1990 / 04 / 1990_04_03.pdf> Summary of the Invention [Problem to be solved by the invention]

[0008] In the technology described in Non-Patent Document 1, normality checks are performed using the subscriber exchange used to provide services to subscriber communication terminals, so that the normality of the remote subscriber accommodation module can be checked in an environment that simulates actual operation.

[0009] However, the technology described in Non-Patent Document 1 requires the installation, configuration, operation, and management of a local exchange, which is used to provide services to subscriber communication terminals. This additional work is required, resulting in higher costs.

[0010] Furthermore, the technology described in Non-Patent Document 2 uses a test control terminal and a local exchange to test the normality of the subscriber accommodation line, making it possible to confirm the normality of the test equipment in an environment that simulates actual operation.

[0011] However, the technology described in Non-Patent Document 2 uses a test control terminal used to test the normality of subscriber accommodation lines and a local exchange used to provide services to subscriber communication terminals, so it is necessary to install, configure, operate, and manage the test control terminal and the local exchange, which requires additional work and results in higher costs.

[0012] The present invention has been made in view of the above points, and aims to verify the normality of a subscriber accommodation module with a simple configuration, without the need to install, configure, operate, and manage a test control terminal or subscriber exchange, and to reduce the costs and operations required for testing to verify the normality. [Means for solving the problem]

[0013] The subscriber accommodation module testing equipment of the present invention is characterized by comprising a terminal device control unit that sets the terminal device accommodated in the subscriber accommodation module to perform a test, and a comparison unit that transmits a random bit pattern as a test to the terminal device, receives the random bit pattern returned by the terminal device, and compares the transmitted result with the received result.

[0014] In addition, the subscriber accommodation module testing equipment system of the present invention is characterized by comprising a terminal device testing equipment that is accommodated in the subscriber accommodation module and tests a terminal device that is set with a load that fixes the subscriber terminal to either a normal state or a fault state, and a testing equipment control unit that causes the terminal device testing equipment to perform a test. [Effects of the Invention]

[0015] According to the present invention, there is no need to install, configure, operate, or manage a test control terminal or a subscriber exchange, and the normality of a subscriber accommodation module can be confirmed with a simple configuration, while the costs and operation required for testing to confirm normality can be reduced. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a block diagram showing the overall configuration of a test system for a subscriber accommodation module according to a first embodiment; [Figure 2] 10 is a flowchart showing the flow of a first normality confirmation process executed by a tester in a tester system for a subscriber accommodation module. [Figure 3] FIG. 10 is a block diagram showing the overall configuration of a test system for a subscriber accommodation module according to a second embodiment. [Figure 4] FIG. 11 is a block diagram showing the overall configuration of a test system for a subscriber accommodation module according to a third embodiment. [Figure 5] FIG. 10 is a block diagram showing the overall configuration of a test system for a subscriber accommodation module according to a fourth embodiment. [Figure 6] 10 is a flowchart showing the flow of a second normality confirmation process executed by a tester in a tester system for a subscriber accommodation module. [Figure 7] FIG. 11 is a block diagram showing the overall configuration of a test system for a subscriber accommodation module according to a fifth embodiment. [Figure 8] FIG. 13 is a block diagram showing the overall configuration of a test system for a subscriber accommodation module according to a sixth embodiment. [Figure 9] 10 is a flowchart showing a process flow for continuously executing second normality confirmation processes. [Figure 10] FIG. 13 is a block diagram showing the overall configuration of a test system for a subscriber accommodation module according to a seventh embodiment. [Figure 11] FIG. 10 is a functional block diagram showing the configuration of a subscriber accommodation module testing system as a comparative example 1. [Figure 12]FIG. 10 is a functional block diagram showing the configuration of a subscriber accommodation module testing system as a comparative example 2. DETAILED DESCRIPTION OF THE INVENTION

[0017] Next, an embodiment of the present invention (hereinafter referred to as "the present embodiment") will be described. First, in the overview of the present technology, a conventional technology will be described as a comparative example. Hereinafter, the same members and configurations will be given the same reference numerals, and descriptions thereof will be omitted as appropriate.

[0018] <Overview of this technology> [Comparative Example 1] 11 is a functional block diagram showing the configuration of a test system for a subscriber accommodation module as Comparative Example 1. As shown in FIG. 11, the test system 100P for the subscriber accommodation module 10 is configured to include the subscriber accommodation module 10, a subscriber system distribution module 20, and a subscriber exchange 60.

[0019] The subscriber module 10 is not particularly limited and may be a remote subscriber module or a subscriber module used in close proximity.

[0020] The subscriber accommodation module 10 and the subscriber distribution module 20 are connected by an optical transmission path 40 made of optical fiber. The subscriber distribution module 20 and the subscriber exchange 60 are connected by an optical transmission path 41 made of optical fiber.

[0021] The subscriber accommodation module 10 has a function of terminating optical signals. The subscriber accommodation module 10 is also configured to include an intra-office subscriber line terminal 11. The intra-office subscriber line terminal 11 accommodates two copper (metal) wires (not shown) and is configured to include a return section 17.

[0022] The loopback unit 17 loops back the optical signal transmitted from the transmission / reception comparing unit 32 of the local exchange 60 to the transmission / reception comparing unit 32 .

[0023] The subscriber distribution module 20 connects the subscriber communication terminal 50 (subscriber terminal) connected to the intra-office subscriber line termination device 11 of the subscriber accommodation module 10 to the subscriber exchange 60 .

[0024] The subscriber exchange 60 is configured to include a terminating device control unit 31 and a transmitting / receiving comparison unit 32. The terminating device control unit 31 connects to the intra-office subscriber line termination device 11 accommodated in the subscriber accommodation module 10 via the subscriber system distribution module 20, and controls (sets) it to perform normality check.

[0025] The transmission and reception comparator 32 transmits the random bit pattern to the loopback unit 17 of the intra-office subscriber line terminal 11 accommodated in the subscriber accommodation module 10 via the subscriber system distribution module 20. The loopback unit 17 loops back the random bit pattern received as an optical signal to the transmission and reception comparator 32. The transmission and reception comparator 32 then receives the random bit pattern looped back by the loopback unit 17. This allows the transmission and reception comparator 32 to compare the transmission result and reception result of the random bit pattern to confirm the normality of the subscriber accommodation module 10 accommodating the intra-office subscriber line terminal 11.

[0026] However, as shown in Comparative Example 1 (FIG. 11), in order to check the normality of the subscriber accommodation module 10 and the intra-office subscriber line termination device 11, it is necessary to install, configure, operate, and manage the subscriber exchange 60.

[0027] Note that a digital service unit (DSU) (not shown) having a loopback unit 17 may be connected to the intra-office subscriber line termination device 11 of the subscriber accommodation module 10 instead of the subscriber communication terminal 50. In this case, the transmission / reception comparison unit 32 can transmit a random bit pattern to the digital line termination device via the intra-office subscriber line termination device 11, and can check the normality of the digital line termination device based on the random bit pattern looped back by the loopback unit 17 of the digital line termination device.

[0028] Comparative Example 2 Fig. 12 is a functional block diagram showing the configuration of a testing equipment system for a subscriber accommodation module as Comparative Example 2. As shown in Fig. 12, the testing equipment system 101P for the subscriber accommodation module 14 is configured to include the subscriber accommodation module 14, a subscriber distribution module 20, a subscriber exchange 61, and a test control terminal 70.

[0029] The second comparative example in FIG. 12 differs from the first comparative example in FIG. 11 in that the subscriber accommodation module 14 includes a terminating device testing device 15 and a test control terminal 70.

[0030] The terminal device testing equipment 15 tests the normality of the subscriber accommodation line of the intra-office subscriber line termination equipment 11 using a load 51 connected to the intra-office subscriber line termination equipment 11. As the load 51 of the subscriber communication terminal 50, for example, (1) the voltage between two copper wires (not shown), (2) the insulation resistance between the ground and the electric wire, or (3) the capacitance of the capacitor between the two copper wires is set in the intra-office subscriber line termination equipment 11, and the terminal device testing equipment 15 measures the load 51.

[0031] The test control terminal 70 is a control terminal (TWS) that controls the terminating device testing equipment 15, and the test control terminal 70 controls the terminating device testing equipment 15 via a test equipment control unit 34 mounted on the test control terminal 70. As a result, the test equipment control unit 34 causes the terminating device testing equipment 15 to measure the load 51 connected to the intra-office subscriber line termination device 11, and the normality of the terminating device testing equipment 15 can be confirmed based on the measured value of the load 51. By confirming the normality of the terminating device testing equipment 15, the test equipment control unit 34 can confirm the normality of the intra-office subscriber line termination device 11 and the subscriber accommodation module 14.

[0032] The test control terminal 70 is configured, for example, by a workstation. The workstation that constitutes the test control terminal 70 is provided with a CPU (Central Processing Unit), ROM (Read Only Memory), RAM, HDD (Hard Disk Drive), input / output I / F (Interface), communication I / F, and media I / F.

[0033] As shown in Comparative Example 2 (FIG. 12), in order to test the normality of the subscriber accommodation line of the intra-office subscriber line termination device 11, a test control terminal 70 of the test device control unit 34 that controls the termination device test device 15 is used, and a subscriber exchange 61 equipped with a termination device control unit 31 is also used. Furthermore, the test control terminal 70 and the subscriber exchange 61 must be installed, configured, operated, and managed.

[0034] In this embodiment, there is no need to install, configure, operate, and manage the subscriber exchanges 60, 61 and the test control terminal 70 shown in Comparative Example 1 and Comparative Example 2, and the normality of the subscriber accommodation modules 10, 14 can be confirmed with a simple configuration, while reducing the costs and operation required for testing to confirm normality.

[0035] <Subscriber module test system> [First embodiment] FIG. 1 is a block diagram showing the overall configuration of a test system for a subscriber accommodation module according to the first embodiment.

[0036] As shown in FIG. 1, a tester system 100 for a subscriber accommodation module 10 includes the subscriber accommodation module 10, a subscriber distribution module 20, and a tester 30.

[0037] The testing machine system 100 according to the first embodiment shown in FIG. 1 differs from the testing machine system 100P of Comparative Example 1 shown in FIG. 11 in that a testing machine 30 is provided instead of the subscriber exchange 60.

[0038] The test equipment 30 is configured to include a terminating device control unit 31 and a transmitting / receiving comparison unit 32 (comparison unit). The terminating device control unit 31 of the test equipment 30 functions in the same manner as the terminating device control unit 31 of the local exchange 60, and the transmitting / receiving comparison unit 32 of the test equipment 30 functions in the same manner as the transmitting / receiving comparison unit 32 of the local exchange 60.

[0039] That is, the termination device control unit 31 of the test equipment 30 sets the intra-office subscriber line termination device 11 accommodated in the subscriber accommodation module 10 to execute a test. Also, the transmission / reception comparison unit 32 of the test equipment 30 transmits a random bit pattern to the intra-office subscriber line termination device 11, receives the random bit pattern returned by the intra-office subscriber line termination device 11, and compares the transmission result with the reception result.

[0040] The intra-office subscriber line termination device 11 includes a loopback unit 17, which loops back the random bit pattern transmitted from the transmission / reception comparison unit 32. The random bit pattern is, for example, a pseudo random bit pattern (PRBS: Pseudo Random Bit Stream (or Sequence)), and a random signal is used as the test pattern.

[0041] <First normality confirmation process> In this embodiment, the testing equipment system 100 for the subscriber accommodation module 10 verifies the normality of the subscriber accommodation module 10 and the intra-office subscriber line termination device 11 by having the testing equipment 30 send a random bit pattern to the loopback section 17 of the intra-office subscriber line termination device 11.

[0042] 2 is a flowchart showing the flow of a first normality confirmation process executed by a tester in a tester system for a subscriber accommodation module. The first normality confirmation process of the tester system 100 will be described below with reference to FIG. 1 as needed. In the drawings, the intra-office subscriber line termination device 11 will be referred to as a termination device.

[0043] First, the terminating device control unit 31 of the tester 30 sets a predetermined value for performing a first normality test in the intra-office subscriber line termination device 11 accommodated in the subscriber accommodation module 10 (step S01). Here, the predetermined value refers to a setting value for performing a first normality test in the intra-office subscriber line termination device 11. After setting an appropriate predetermined value in the intra-office subscriber line termination device 11, the terminating device control unit 31 receives an acknowledgement from the intra-office subscriber line termination device 11.

[0044] Next, the transmission and reception comparison unit 32 of the test equipment 30 transmits a random bit pattern to the loopback unit 17 of the intra-office subscriber line termination device 11 (step S02). In this case, the loopback unit 17 loops back the random bit pattern transmitted from the transmission and reception comparison unit 32 to the transmission and reception comparison unit 32.

[0045] The transmission / reception comparison unit 32 receives the random bit pattern folded back by the folding back unit 17 (step S03). Then, the transmission / reception comparison unit 32 compares the transmitted random bit pattern with the received random bit pattern to determine whether there is any difference between them (step S04).

[0046] If there is no difference between the transmitted and received random bit patterns (Yes in step S04), the transmission / reception comparison unit 32 determines that it has confirmed that the subscriber accommodation module 10 and the intra-office subscriber line termination device 11 are normal (step S05), and terminates the first normality confirmation process.

[0047] On the other hand, if there is a difference between the transmitted and received random bit patterns (No in step S04), the transmission / reception comparison unit 32 determines that there is an abnormality in the subscriber accommodation module 10 or the intra-office subscriber line termination device 11, notifies the abnormality (step S06), and terminates the first normality confirmation process.

[0048] In addition, confirming normality in the first normality means confirming whether or not the range of normal functioning is within a specified range, and if the difference between the sent and received random bit patterns is within the specified range, it is determined that normality has been confirmed.

[0049] Furthermore, in this embodiment, in the testing equipment 30, (1) the termination device control unit 31 sets a setting value for executing a first normality test to the intra-office subscriber line termination device 11 (step S01), (2) the transmission / reception comparison unit 32 transmits a random bit pattern to the intra-office subscriber line termination device 11 (step S02), (3) the transmission / reception comparison unit 32 receives the random bit pattern looped back by the loopback unit 17 (step S03), and (4) the transmission / reception comparison unit 32 automatically checks whether there is any difference between the transmitted and received random bit patterns (step S04), which is called the first automatic scenario.

[0050] In this way, the test system 100 for the subscriber accommodation module 10 according to the first embodiment can execute the process of checking the normality of the subscriber accommodation module 10 and the intra-office subscriber line termination device 11 using the first automatic scenario.

[0051] [Second embodiment] FIG. 3 is a block diagram showing the overall configuration of a test system for a subscriber accommodation module according to the second embodiment.

[0052] As shown in FIG. 3, in a test equipment system 101 for a subscriber accommodation module 10 according to the second embodiment, a subscriber distribution module 20 is provided in a test equipment 33. In the test equipment system 101, as shown in FIG.

[0053] The test equipment system 101 according to the second embodiment shown in Fig. 3 differs from the test equipment system 100 according to the first embodiment shown in Fig. 1 in that the subscriber system distribution module 20 is provided in the test equipment 33. Since the second embodiment has the same basic configuration as the first embodiment, it operates in the same way as the first embodiment and has the same effects as the first embodiment.

[0054] [Third embodiment] FIG. 4 is a block diagram showing the overall configuration of a test system for a subscriber accommodation module according to the third embodiment.

[0055] As shown in FIG. 4, in a test equipment system 102 for a subscriber accommodation module 10 according to the third embodiment, the subscriber accommodation module 10 is configured to include a plurality of intra-office subscriber line termination devices 11, 12, and 13 of the same configuration.

[0056] The difference between the test equipment system 102 according to the third embodiment shown in FIG. 4 and the test equipment system 100 according to the first embodiment shown in FIG. 1 is that multiple intra-office subscriber line termination devices 11, 12, and 13 are provided in the subscriber accommodation module 10.

[0057] In this case, the transmission / reception comparator 32 of the tester 30 transmits and receives a random bit pattern and compares the transmission results with the reception results successively for each of the multiple intra-office subscriber line termination devices 11, 12, and 13 accommodated in the subscriber accommodation module 10. In other words, the tester system 102 can execute the first automatic scenario for each of the multiple intra-office subscriber line termination devices 11, 12, and 13 with a single setting, and can execute normality confirmation processing successively for each of the multiple intra-office subscriber line termination devices 11, 12, and 13.

[0058] In addition, the test equipment system 102 for the subscriber accommodation module 10 of the third embodiment is applicable whether the transmission / reception comparison unit 32 is separate from the test equipment 30 (first embodiment) or whether the subscriber system allocation module 20 is included in the test equipment 30 (second embodiment), as long as the transmission / reception comparison unit 32 can continuously execute the first automatic scenario for each of the multiple intra-office subscriber line termination devices 11, 12, and 13.

[0059] [Fourth embodiment] FIG. 5 is a block diagram showing the overall configuration of a subscriber accommodation module testing system according to the fourth embodiment.

[0060] As shown in FIG. 5, a test equipment system 103 for the subscriber accommodation module 14 according to the fourth embodiment is configured to include the subscriber accommodation module 14, a subscriber system distribution module 20, and a test equipment 35.

[0061] The subscriber accommodation module 14 comprises an intra-office subscriber line termination device 11 and a termination device testing device 15 .

[0062] First, a load 51 is set in the intra-office subscriber line termination device 11 accommodated in the subscriber accommodation module 14. The load 51 is set in place of the subscriber communication terminal 50, and is used to check whether the subscriber communication terminal 50 is in a normal state or a fault state. In this way, the termination device testing equipment 15 checks, for the intra-office subscriber line termination device 11 in which the load 51 is set, whether the intra-office subscriber line termination device 11 and the subscriber accommodation line are in a normal state or a fault state.

[0063] The tester 35 is configured to include a terminating device control section 31 and a test device control section 34. The test device control section 34 causes the terminating device testing device 15 to execute a test.

[0064] The test equipment system 103 includes an intra-office subscriber line termination device 11 and a termination device control unit 31 that sets the intra-office subscriber line termination device 11 to perform a test. The intra-office subscriber line termination device 11 and the termination device testing device 15 are housed in a subscriber accommodation module 14, and the termination device control unit 31 and the testing device control unit 34 are housed in a test equipment 35.

[0065] The testing equipment system 103 according to the fourth embodiment shown in FIG. 5 differs from the comparative example 2 shown in FIG. 12 in that it includes a testing equipment 35 instead of the local exchange 61 and the test control terminal 70.

[0066] <Second normality confirmation process> The test equipment system 103 of the subscriber accommodation module 10 according to this embodiment causes the test equipment control unit 34 of the test equipment 35 to execute a test on the termination equipment testing equipment 15. The test equipment system 103 uses the termination equipment testing equipment 15 to check the normality of the subscriber accommodation line of the intra-office subscriber line termination equipment 11, which has set thereon a load 51 that fixes the subscriber communication terminal 50 to either a normal state or a fault state.

[0067] Fig. 6 is a flowchart showing the flow of the second normality confirmation process executed by a tester in a tester system for a subscriber accommodation module. The second normality confirmation process of the tester system 103 will be described below with reference to Fig. 5 as needed. As in Fig. 2, the intra-office subscriber line termination device 11 will be referred to as a termination device in the drawing.

[0068] First, the termination device control unit 31 of the tester 35 sets a predetermined value for performing a second normality test in the intra-office subscriber line termination device 11 accommodated in the subscriber accommodation module 14 (step S11). Here, the predetermined value refers to a setting value for performing a second normality test on the intra-office subscriber line termination device 11. After setting an appropriate predetermined value in the intra-office subscriber line termination device 11, the termination device control unit 31 receives an acknowledgement from the intra-office subscriber line termination device 11.

[0069] Next, the load 51 is set in the intra-office subscriber line termination device 11. The load 51 is set so that the subscriber communication terminal 50 is fixed to either a normal state or a fault state (step S12). In this case, the test device control unit 34 sets the termination device test device 15 to execute a test.

[0070] The terminal device test equipment 15 measures the load 51 set in the intra-office subscriber line terminal 11 (step S13). Then, the test equipment control unit 34 determines whether the measured load 51 is within a predetermined range (step S14).

[0071] If the measured load 51 is within a predetermined range (Yes in step S14), the test equipment control unit 34 determines that it has confirmed that the intra-office subscriber line termination device 11 and the subscriber accommodation line are normal (step S15), and terminates the second normality confirmation process.

[0072] On the other hand, if the measured load 51 is not within the predetermined range (No in step S14), the test equipment control unit 34 determines that there is an abnormality in the intra-office subscriber line termination device 11 or the subscriber accommodation line, notifies the abnormality (step S16), and terminates the second normality confirmation process.

[0073] In addition, confirming normality in the second normality means checking whether it is within a predetermined range that defines the range in which it functions normally, and it is determined that normality has been confirmed if, for example, the voltage between two copper wires, the resistance of the insulation resistance between the ground and the electric wire, or the capacitance of the capacitor between the two copper wires as the load 51 of the subscriber communication terminal 50 is within a predetermined range.

[0074] Furthermore, in this embodiment, in the subscriber accommodation module 14, (1) the termination device control unit 31 sets a setting value for performing a second normality test on the intra-office subscriber line termination device 11 (step S11), (2) the termination device testing device 15 sets a load 51 on the intra-office subscriber line termination device 11 (step S12), (3) the termination device testing device 15 measures the load 51 on the intra-office subscriber line termination device 11 (step S13), and (4) the testing device control unit 34 automatically confirms the normality of the value of the load 51 measured by the termination device testing device 15 (step S14), which is called the second automatic scenario.

[0075] In this way, the test equipment system 103 of the subscriber accommodation module 10 according to the fourth embodiment can execute the process of checking the normality of the terminal device test equipment 15 and the subscriber accommodation line by the second automatic scenario.

[0076] [Fifth embodiment] FIG. 7 is a block diagram showing the overall configuration of a test system for a subscriber accommodation module according to the fifth embodiment.

[0077] As shown in FIG. 7, a test equipment system 104 for the subscriber accommodation module 10 according to the fifth embodiment shows an embodiment in which the subscriber distribution module 20 is provided in a test equipment 36.

[0078] The testing equipment system 104 according to the fifth embodiment shown in Fig. 7 differs from the testing equipment system 103 according to the fourth embodiment shown in Fig. 5 in that the subscriber system distribution module 20 is provided with a testing equipment 36. The fifth embodiment has the same basic configuration as the fourth embodiment, and therefore operates in the same way as the fourth embodiment and has the same effects as the fourth embodiment.

[0079] [Sixth embodiment] FIG. 8 is a block diagram showing the overall configuration of a test system for a subscriber accommodation module according to the sixth embodiment.

[0080] As shown in FIG. 8, a tester system 105 for a subscriber accommodation module 14 according to the sixth embodiment is configured such that a tester 37 further includes a dummy load device control unit 38.

[0081] The difference between the testing machine system 105 according to the sixth embodiment shown in FIG. 8 and the testing machine system 103 according to the fourth embodiment shown in FIG. 5 is that the pseudo load device control unit 38 is provided in the testing machine 37.

[0082] The dummy load device control unit 38 changes the load 51 as a predetermined condition and sets the terminal device test equipment 15 to test the intra-office subscriber line terminal 11 successively under different loads as a plurality of conditions. That is, the test equipment system 105 allows the dummy load device control unit 38 to execute the second automatic scenario for the intra-office subscriber line terminal 11 for each of the plurality of different loads.

[0083] Note that the load 51 is the name when the second automatic scenario is executed under one condition, and when the load 51 is changed to different loads as multiple conditions, it is called a pseudo load device 52 that can change the load pseudo-wise. Also, in this specification, for each of the multiple different loads 51, the first load is treated as the first condition, the second load is treated as the second condition, and so on, and the second automatic scenario is executed with different conditions for each different load.

[0084] <Continuous confirmation process of the second normality based on multiple conditions> The test equipment system 105 for the subscriber accommodation module 14 according to this embodiment changes the load 51 as a predetermined condition using the pseudo load device control unit 38 of the test equipment 37, and sets the termination device testing equipment 15 to test the load 51 connected to the intra-office subscriber line termination device 11 under multiple conditions in succession. This allows the test equipment system 105 to continuously execute multiple second automatic scenarios and check the normality of the termination device testing equipment 15 and the subscriber accommodation line.

[0085] Fig. 9 is a flowchart showing the flow of the process of continuously executing the second normality confirmation process. The process of continuously executing the normality confirmation process of the test equipment system 105 will be described with reference to Fig. 8 as needed. Note that, as in Figs. 2 and 6, the intra-office subscriber line termination device 11 will be referred to as a termination device in the drawings.

[0086] First, the termination device control unit 31 of the tester 37 sets a predetermined value for confirming the second normality in the intra-office customer line termination device 11 accommodated in the subscriber accommodation module 14 (step S21). Here, the predetermined value refers to a setting value for executing a second normality test in the intra-office customer line termination device 11 under a first load as a first condition. After setting an appropriate predetermined value in the intra-office customer line termination device 11, the termination device control unit 31 receives an acknowledgement from the intra-office customer line termination device 11.

[0087] Next, a first load is set in the intra-office subscriber line terminal 11, and the terminal testing device 15 of the subscriber accommodation module 14 measures the first load (step S22). For example, the first load is a capacitor with a capacitance of 1 μF set between two copper wires of the intra-office subscriber line terminal 11.

[0088] In step S22, by executing steps S12 to S16 in Fig. 6 in the second automatic scenario, a capacitor of 1 [µF] is loaded onto the intra-office subscriber line termination device 11, and the termination device testing device 15 measures this capacitor capacitance. If the error in the measured value is within 10 [%], for example, the testing device control unit 34 determines that there is normality. Note that the values ​​of the capacitor capacitance and error are merely examples and are not limited to these.

[0089] Next, a second load is set in the intra-office subscriber line terminal 11, and the terminal testing device 15 measures the second load (step S23). The second load applies, for example, a DC voltage of 48 V to the intra-office subscriber line terminal 11.

[0090] 6 in the second automatic scenario, the terminal device testing equipment 15 measures the DC voltage while applying a DC voltage of 48 V between the two copper wires of the intra-office subscriber line terminal 11. If the error in the measurement value is within 10%, for example, the testing equipment control unit 34 determines that the system is normal.

[0091] The DC voltage values ​​and error values ​​are merely examples and are not limited to these. An AC voltage may be applied, or may be applied between the ground and the electric wire.

[0092] Next, a third load is set in the intra-office subscriber line termination device 11, and the termination device test device 15 measures the third load (step S24). For example, the third load is set in the intra-office subscriber line termination device 11 as an insulation resistance between the ground and the electric wire.

[0093] In step S24, by executing steps S12 to S16 of Fig. 6 in the second automatic scenario, a 600 [KΩ] resistor is connected between one copper wire of the intra-office subscriber line termination device 11 and the ground, and the termination device testing device 15 measures this resistance value. If the error in the measurement value is within 10 [%,] for example, the testing device control unit 34 determines that there is normality. Note that the resistance value and error values ​​are merely examples and are not limited to these.

[0094] When the terminating device testing device 15 has measured the first to third loads (steps S22 to S24), the testing device control section 34 ends the second normality continuous confirmation process.

[0095] The termination device testing device 15 measures different loads from the first to third loads and performs each second normality test, which allows the test device control unit 34 to confirm the normality of the termination device testing device 15. Since the termination device testing device 15 functions as multiple measuring instruments for the intra-office subscriber line termination device 11, it can execute the second automatic scenario using multiple different loads and confirm the normality of multiple measurement functions that the termination device testing device 15 has.

[0096] [Seventh embodiment] FIG. 10 is a block diagram showing the overall configuration of a test system for a subscriber accommodation module according to the seventh embodiment.

[0097] 10, in a test equipment system 106 for a subscriber accommodation module 10 according to the seventh embodiment, the subscriber accommodation module 16 is configured to include a plurality of intra-office subscriber line termination devices 11, 12, and 13 of the same configuration. Dummy load devices 53, 54, and 55 are connected to the intra-office subscriber line termination devices 11, 12, and 13, respectively. The dummy load devices 53, 54, and 55 are stored in a load device 56.

[0098] The difference between the test equipment system 106 according to the seventh embodiment shown in FIG. 10 and the test equipment system 105 according to the sixth embodiment shown in FIG. 8 is that multiple intra-office subscriber line termination devices 11, 12, and 13 are provided in the subscriber accommodation module 16.

[0099] In this case, the test equipment control unit 34 of the tester 37 connects dummy load devices 53, 54, and 55 via the load device 56 to each of the multiple intra-office subscriber line termination devices 11, 12, and 13 accommodated in the subscriber accommodation module 16. This allows the termination device testing device 15 to successively execute the second automatic scenario for each of the multiple intra-office subscriber line termination devices 11, 12, and 13, and perform the second normality confirmation process.

[0100] Here, suppose that the terminal device testing device 15 executes the second automatic scenario for each of the first to third loads using the pseudo load device 53 for the intra-office subscriber line terminal device 11, and confirms the second normality.

[0101] In this case, the test equipment control unit 34 can confirm the normality of the terminal device testing equipment 15, and can also confirm the normality of the intra-office subscriber line termination device 11 and the subscriber accommodation line connected to the intra-office subscriber line termination device 11. In other words, the normality of the terminal device testing equipment 15 is confirmed by the intra-office subscriber line termination device 11.

[0102] Therefore, the termination device testing device 15 can confirm the normality of the intra-office subscriber line termination device 12 and the intra-office subscriber line termination device 13 and their subscriber accommodation lines simply by checking the normality using, for example, any one of the first to third loads for each of the intra-office subscriber line termination device 12 and the intra-office subscriber line termination device 13.

[0103] Furthermore, the test equipment system 106 for the subscriber accommodation module 16 of the seventh embodiment only requires that the test equipment control unit 34 and the pseudo load equipment control unit 38 can continuously execute the second automatic scenario for each of the multiple intra-office subscriber line termination devices 11, 12, and 13, and can be applied whether the subscriber system allocation module 20 is separate from the test equipment 37 (fourth embodiment) or whether the subscriber system allocation module 20 is included in the test equipment 36 (fifth embodiment).

[0104] <Effects> The effects of the test system 100 for the subscriber accommodation module 10 according to the present invention will be described below.

[0105] The testing equipment 30 for the subscriber accommodation module 10 according to the present invention is characterized by comprising a termination device control unit 31 that sets the intra-office subscriber line termination device 11 accommodated in the subscriber accommodation module 10 to perform a test, and a transmission / reception comparison unit 32 that transmits a random bit pattern as a test for the intra-office subscriber line termination device 11, receives the random bit pattern returned by the termination device, and compares the transmission result with the reception result.

[0106] According to the testing equipment 30 for the subscriber accommodation module 10 of the present invention, the testing equipment 30 can confirm the normality of the subscriber accommodation module 10 and the intra-office subscriber line termination device 11 by comparing the transmitted random bit pattern with the received random bit pattern to check for any differences using the transmission / reception comparison unit 32.

[0107] As a result, the testing equipment 30 for the subscriber accommodation module 10 according to the present invention does not require the installation, configuration, operation, and management of the subscriber exchange 60, and can verify the normality of the subscriber accommodation module with a simple configuration, while reducing the costs and operation required for testing to verify normality.

[0108] In addition, the test equipment 30 for the subscriber accommodation module 10 according to the present invention can transmit and receive random bit patterns successively to each of the multiple intra-office subscriber line termination devices 11, 12, and 13 accommodated in the subscriber accommodation module 10, and compare the transmission results with the reception results, by using the transmission / reception comparison unit 32.

[0109] According to the testing equipment 30 for the subscriber accommodation module 10 of the present invention, with a single setting, the first automatic scenario can be executed for each of the multiple intra-office subscriber line termination devices 11, 12, and 13, and normality confirmation processing can be executed continuously for each of the multiple intra-office subscriber line termination devices 11, 12, and 13.

[0110] In addition, the testing equipment system 103 for the subscriber accommodation module 14 according to the present invention is characterized by comprising a termination equipment testing equipment 15 for testing the intra-office subscriber line termination equipment 11 accommodated in the subscriber accommodation module 14 and having a load 51 set so that the subscriber communication terminal 50 is fixed to either a normal state or a fault state, and a testing equipment control unit 34 for causing the termination equipment testing equipment 15 to perform a test.

[0111] According to the testing equipment system 103 for the subscriber accommodation module 14 of the present invention, the terminal testing equipment 15 sets a load 51 for the intra-office subscriber line termination equipment 11 accommodated in the subscriber accommodation module 14. The load 51 is set in place of the subscriber communication terminal 50, and is intended to confirm whether the subscriber communication terminal 50 is in a normal state or a faulty state. Therefore, the terminal testing equipment 15 tests the intra-office subscriber line termination equipment 11 for which a load 51 is set that fixes the subscriber communication terminal 50 to either a normal state or a faulty state. The test equipment control unit 34 causes the terminal testing equipment 15 to execute a test.

[0112] As a result, the testing equipment system 103 for the subscriber accommodation module 14 according to the present invention does not require the installation, configuration, operation, and management of the test control terminal 70 and the subscriber exchange 60, and can verify the normality of the subscriber accommodation module 14 with a simple configuration, while reducing the costs and operation required for testing to verify normality.

[0113] The tester system 103 for the subscriber accommodation module 14 according to the present invention is characterized by further comprising a terminal device control unit 31 that sets the intra-office subscriber line terminal 11 to execute a test.

[0114] According to the testing equipment system 103 for the subscriber accommodation module 14 of the present invention, the termination device control unit 31 can set a setting value for performing a second normality test in the intra-office subscriber line termination device 11 accommodated in the subscriber accommodation module 14.

[0115] As a result, the tester system 103 of the subscriber accommodation module 14 according to the present invention can execute the process of checking the normality of the terminal device tester 15 and the subscriber accommodation line by the second automatic scenario.

[0116] In addition, the testing equipment system 105 for the subscriber accommodation module 14 according to the present invention is characterized by further comprising a pseudo-load device control unit 38 that changes the load 51 as a predetermined condition and sets the intra-office subscriber line termination device 11 so that the termination device testing device 15 performs testing under multiple conditions consecutively.

[0117] According to the testing equipment system 105 for the subscriber accommodation module 14 of the present invention, the pseudo load device control unit 38 sets the intra-office subscriber line termination device 11 so that the termination device testing device 15 performs tests successively using a plurality of different loads as a plurality of conditions.

[0118] As a result, in the testing equipment system 105 for the subscriber accommodation module 14 according to the present invention, the pseudo load device control unit 38 executes the second automatic scenario for each of the multiple loads for the intra-office subscriber line termination device 11, and can perform processing to confirm the normality of the termination device testing device 15 and the subscriber accommodation line. In particular, since the termination device testing device 15 functions as multiple measuring instruments for the intra-office subscriber line termination device 11, the normality of the multiple measurement functions possessed by the termination device testing device 15 can be confirmed by executing the second automatic scenario using multiple different loads.

[0119] The present invention is not limited to the above-described embodiments, and many modifications can be made by a person skilled in the art within the technical concept of the present invention. [Explanation of symbols]

[0120] 10,14 Subscriber accommodation module 11, 12, 13 In-station subscriber line termination equipment (termination equipment) 15. Terminal device test equipment 17 Folded section 20 Subscriber system distribution module 30, 33, 35, 36, 37 Testing machine 31 Termination device control unit 32 Transmit / receive comparison section (comparison section) 34 Test equipment control section 38 Pseudo-load device control section 40,41 Optical transmission line 50 Subscriber communication terminal (subscriber terminal) 51 Load 52,53,54,55 Pseudo load device 56 Load device 60,61 Subscriber exchange 70 Test Control Terminal 100~105,100P,101P testing machine system

Claims

1. a terminal device test device for testing a terminal device accommodated in the subscriber accommodation module and having a load set to fix the subscriber terminal in either a normal state or a fault state; a test device control unit that causes the termination device test device to execute a test; A subscriber accommodation module tester system comprising:

2. a terminating device control unit configured to cause the terminating device to execute a test; 2. The subscriber accommodation module test system according to claim 1.

3. a pseudo-load device control unit that changes the load as a predetermined condition and sets the termination device so that the termination device testing device executes a test on the termination device under a plurality of conditions successively; 3. The subscriber accommodation module tester system according to claim 1, further comprising:

4. A method for testing a subscriber accommodation module, comprising: A load is set on the terminating device such that the subscriber terminal is fixed in either a normal state or a fault state; a step in which a terminating device control unit of a tester sets the terminating device to perform a test; a step in which a test device control unit of the tester performs setting for a terminating device test device that tests the terminating device to execute a test; a step of the terminal device testing device measuring the load set on the terminal device and confirming normality; 2. A subscriber accommodation module testing method comprising:

5. a step in which a pseudo-load device control unit of the tester changes the load as a predetermined condition, and sets the termination device so that the termination device test device executes a test on the termination device under a plurality of conditions successively; 5. The method for testing a subscriber accommodation module according to claim 4, further comprising:

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