WO2009052666A1 - Multi-port testing device - Google Patents

Multi-port testing device Download PDF

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Publication number
WO2009052666A1
WO2009052666A1 PCT/CN2007/003494 CN2007003494W WO2009052666A1 WO 2009052666 A1 WO2009052666 A1 WO 2009052666A1 CN 2007003494 W CN2007003494 W CN 2007003494W WO 2009052666 A1 WO2009052666 A1 WO 2009052666A1
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WIPO (PCT)
Prior art keywords
circuit
signal
interface
ping packet
under test
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Application number
PCT/CN2007/003494
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French (fr)
Chinese (zh)
Inventor
Weigang Liu
Tao Lu
Minghao Zhang
Ming Yang
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Zte Corporation
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Publication of WO2009052666A1 publication Critical patent/WO2009052666A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/50—Testing arrangements

Definitions

  • the present invention relates to the field of data communications, and in particular, to a multi-network port testing device.
  • a mobile terminal usually has multiple local area network (LAN) ports, and the market is mobile terminal.
  • the demand is increasing, the production volume is required to be 4, and the traditional production test method is applied.
  • the Ethernet port (electric port and optical port) tester is also used in the market for testing.
  • the tester can simulate the terminal, pass the instrument source, and demodulate and analyze the measured feedback information to complete the bit error rate and throughput rate. , synchronization status, auto-negotiating parameters, etc.
  • the tester has a lot of content, the tester also needs to test the LAN port one by one, which is very slow.
  • the cost of the Ethernet port tester is high.
  • the multi-network port testing device of the utility model comprises a plurality of interface circuits, a signal branching circuit and a detecting circuit, wherein each interface circuit has a network port plug corresponding to the device under test on one side, and the other side respectively Connected to the detection circuit, send the PING packet signal sent by the signal branch circuit to the corresponding network port of the device under test, and receive the signal returned by the device under test for the PING packet signal, and send it to the detection circuit;
  • the signal branch circuit is disposed between the interface circuit and the computer that sends the PING packet source, and outputs each PING packet signal from the PING packet source to each interface; the detection circuit detects the return of the device under test sent by each interface circuit. Is there a bit error in the signal?
  • the electronic signal switch is periodically switched in the signal branch circuit, and is connected The electronic switch periodically switches the port to output a separate PING packet signal to each interface.
  • the interface circuit converts the returned signal to the detection circuit, converts the bipolar code in the Manchester signal into a unipolar code, and inputs the non-return-to-zero code to the detection circuit.
  • the detection circuit is an error detection unit corresponding to the number of interface circuits, and receives a non-return-to-zero code sent by the interface circuit, and compares with a sequence of known response frames generated by itself to detect whether there is an error.
  • a printed circuit board pad is provided on the two signal lines of the differential signal positive terminal and the negative terminal signal between the interface circuit and the device under test, and the test pin is soldered, and the ground test pin is soldered.
  • the detecting circuit may be a signal receiving branch circuit, one end of which is connected to each interface circuit, the other end is connected to the signal branching circuit and is connected to the computer through the test device interface, and the synchronous electronic switch is used to enable the computer to separately Perform PING packet test with each Ethernet port.
  • the utility model has the beneficial effects that: the multi-network port testing device according to the utility model can verify whether the PING pass test device is correct, and can test the multi-network port, and the test speed is fast; Pins can also quickly locate faults.
  • FIG. 1 is a schematic structural view of a multi-network port testing device according to an embodiment of the present invention
  • FIG. 2 is a schematic structural view of a multi-network port testing device according to another embodiment of the present invention.
  • the testing device includes a plurality of interface circuits, a signaling branch circuit, and a detecting circuit.
  • a network port plug corresponding to the device under test (for example, an RJ45 plug:) is disposed on the interface circuit side of the test device, so that when testing the device under test, each plug is inserted into each network of the device under test.
  • the test device interface is connected to the computer to receive the test signal sent by the computer and connected to the detection circuit.
  • the interface circuit completed and Matching between the network ports of the device under test, send the PING packet sent by the signaling branch circuit directly to the corresponding RJ45 port of the device under test, and receive the PING packet response returned by the device under test, and the Manchester signal T+T - After converting the medium bipolar code to a unipolar code, input a Non-Return-to-Zero (NRZ) to the detection circuit.
  • the signal branch circuit is disposed between the interface circuit and the test device interface, and periodically switches the port by using an electronic switch, and outputs a PING packet signal to each interface circuit.
  • the interface circuit is provided with a printed circuit board pad and soldered with test pins on the differential signal positive (R+) and negative (R-) signal lines of the device under test, and grounded on the side. Test pins so that when problems are found, access the oscilloscope for detection.
  • the detecting circuit is an error detecting unit corresponding to the number of interface circuits, and the NRZ code sent by the receiving interface circuit is compared with a known sequence of response frames generated by itself, and detecting whether each channel has a bit error.
  • each error detecting unit in the detecting circuit can be connected with the indicator light, and when the error is detected, the driving green light is on, and when the error is detected, the driving red light is on.
  • the testing device includes a plurality of interface circuits, a signaling branch circuit, and a detecting circuit.
  • the interface circuit completes the matching with the network port of the device under test, and sends the PING packet sent by the signaling branch circuit directly to the corresponding RJ45 port of the device under test, and receives the PING packet response returned by the device under test, and
  • the Manchester signal T+T- is input to the detection circuit.
  • the signal branch circuit is disposed between the interface circuit and the test device interface, and periodically switches the port by using an electronic switch, and outputs a PING packet signal to each interface circuit.
  • a printed circuit board pad is provided on the two signal lines of the positive signal (R+) and the negative terminal signal (R-) of the differential signal of the device under test, and the test pin is soldered.
  • the detecting circuit is a signal receiving branch circuit, one end of which is connected to each interface circuit, the other end is connected to the signal branching circuit and is connected to the computer through the test device interface, and the synchronous electronic switch is used to enable the computer to separately Perform PING packet test with each Ethernet port. That is, the signal receiving branch circuit uses the switching clock to complete the periodic switching port in synchronization with the signaling branch circuit, and the PC determines the quality of the PING packet. In this embodiment, the quality of the network port can be determined directly by the computer to the PING packet response signal. During the specific test, as shown in FIG.
  • each network port plug of the test device is directly inserted into the device under test for testing.
  • the RJ45 plug used in the present invention is of an electromagnetic interference prevention type with a metal ring on the outside.
  • the cable connecting the RJ45 plug should be fastened to the printed board with a cable. Make sure the position is fixed and not easy to move.
  • the tab on the RJ45 plug should be cut off.
  • the plug is merely an exemplary description, and the plug in the test device of the present invention is not limited thereto.
  • the multi-network port testing device of the present invention while verifying the integrity of the signal, it is possible to verify whether the PING test device is correct, and the multi-network port can be tested, and the test speed is fast; It also quickly locates faults.

Abstract

A multi-port testing device includes a plurality of interface circuits, a signal-emitting branch circuit and a testing circuit, wherein each interface circuit, on one side of which is disposed a port plug corresponding to the device under test, and the other side of which is connected with the testing circuit, forwards to the corresponding port of the device under test a sub-PING packet signal emanating from the signal-emitting branch circuit, receives the signal returned from the device under test with respect to said sub-PING packet signal, and transmits this to the testing circuit. The signal-emitting branch circuit, which is disposed between the interface circuit and the computer transmitting the PING packet source, outputs to each interface respectively the sub-PING packet signal for each circuit emanating from the PING packet source. The testing circuit tests whether error codes are present in the signal returned from the device under test and forwarded by each interface circuit respectively. The solution can verify simultaneously whether each port of the device under test containing multiple-LAN ports can or cannot communicate normally.

Description

一种多网口测试装置 技术领域 本实用新型涉及数据通信领域， 特别涉及一种多网口测试装置。 背景技术 目前， 随着移动通信的快速发展， 利用移动终端传输局域网信号已成为 可能， 现有的移动产品通常带有多个局 i或网（Local Area Network, LAN )口， 而且市场对移动终端需求量不断增长， 要求生产量 4艮大， 应用传统生产测试 方法， 要对每一网口 （例如 RJ45 口） 的连通性进行测试， 需要通过网线将 设备各网口逐一和计算机连接， 并在计算机上通过 PING命令测试是否能访 问到设备， 这种测试速度艮慢。 目前， 市场上也有采用以太网口 （电口及光口）测试仪进行测试， 该测 试仪可仿真终端， 通过仪表信源， 及对被测反馈信息解调分析， 完成误码率、 吞吐率、 同步状态、 自动协商参数等测试。 尽管这种测试仪测试内容很多， 但是， 该测试仪也需要逐一测试局域网口， 速度很慢。 此外， 对于批量生产 的成熟产品， 也没必要测试过多内容， 且以太网口测试仪成本较高。 实用新型内容 本实用新型的目的在于， 提供一种多网口测试装置， 能够同时验证包含 多个 LAN口的被测设备各网口是否能够正常通信， 且成本较低。 本实用新型的多网口测试装置， 包括多个接口电路、发信号分支电路以 及检测电路， 其中， 各个接口电路， 其一侧设均有与被测设备相应的网口插 头， 另一侧分别与检测电路相连接， 将发信号分支电路发送来的分 PING包 信号发给被测设备相应的网口， 并接收被测设备针对分 PING包信号返回的 信号， 将其发送至检测电路； 发信号分支电路， 设置在接口电路与发送 PING 包源的计算机之间， 向各个接口分别输出来自 PING包源的各路分 PING包 信号； 检测电路， 检测各个接口电路分别发送来的被测设备返回的信号中是 否有误码。 其中， 在所述发信号分支电路中设置有电子开关周期性切换端口， 并通 过所述电子开关周期性切换端口向各个接口输出各路分 PING包信号。 其中， 所述接口电路， 将返回的信号发送至检测电路时， 将其中的曼彻 斯特信号中双极性码变换为单极性码后， 将非归零码输入至所述检测电路。 其中， 所述检测电路为与接口电路数目相应的误码检测单元，接收接口 电路发送来的非归零码， 与其自身产生的已知的应答帧序列相比较， 检测是 否有误码。 此外，在所述接口电路与被测设备之间的差分信号正端及负端信号两信 号线上， 设有印制板焊盘并焊有测试用插针， 并焊有接地测试用插针。 另夕卜， 所述检测电路可以为收信号分支电路， 其一端连接至各个接口电 路， 另一端连接至发信号分支电路以及通过测试装置接口连接至计算机， 其 利用同步电子开关， 使计算机能分别同每一路以太网口进行 PING包测试。 本实用新型的有益效果是： 依照本实用新型的多网口测试装置， 在验证 信号的完整性的同时， 能够验证是否正确 PING通测试设备， 且可以测试多 网口， 测试速度快； 通过测试插针， 还能快速定位故障。 附图说明 图 1为本实用新型的一实施例的多网口测试装置的结构示意图； 图 2为本实用新型的另一实施例的多网口测试装置的结构示意图。 具体实施方式 TECHNICAL FIELD The present invention relates to the field of data communications, and in particular, to a multi-network port testing device. BACKGROUND OF THE INVENTION At present, with the rapid development of mobile communication, it has become possible to transmit a local area network signal by using a mobile terminal. The existing mobile product usually has multiple local area network (LAN) ports, and the market is mobile terminal. The demand is increasing, the production volume is required to be 4, and the traditional production test method is applied. To test the connectivity of each network port (such as RJ45 port), the network ports of the device must be connected to the computer one by one, and The PING command on the computer tests whether the device can be accessed. This test is slow. At present, the Ethernet port (electric port and optical port) tester is also used in the market for testing. The tester can simulate the terminal, pass the instrument source, and demodulate and analyze the measured feedback information to complete the bit error rate and throughput rate. , synchronization status, auto-negotiating parameters, etc. Although the tester has a lot of content, the tester also needs to test the LAN port one by one, which is very slow. In addition, for mature products in mass production, there is no need to test too much content, and the cost of the Ethernet port tester is high. SUMMARY OF THE INVENTION The object of the present invention is to provide a multi-network port testing device capable of simultaneously verifying whether network ports of a device under test including multiple LAN ports can communicate normally, and the cost is low. The multi-network port testing device of the utility model comprises a plurality of interface circuits, a signal branching circuit and a detecting circuit, wherein each interface circuit has a network port plug corresponding to the device under test on one side, and the other side respectively Connected to the detection circuit, send the PING packet signal sent by the signal branch circuit to the corresponding network port of the device under test, and receive the signal returned by the device under test for the PING packet signal, and send it to the detection circuit; The signal branch circuit is disposed between the interface circuit and the computer that sends the PING packet source, and outputs each PING packet signal from the PING packet source to each interface; the detection circuit detects the return of the device under test sent by each interface circuit. Is there a bit error in the signal? Wherein the electronic signal switch is periodically switched in the signal branch circuit, and is connected The electronic switch periodically switches the port to output a separate PING packet signal to each interface. The interface circuit converts the returned signal to the detection circuit, converts the bipolar code in the Manchester signal into a unipolar code, and inputs the non-return-to-zero code to the detection circuit. The detection circuit is an error detection unit corresponding to the number of interface circuits, and receives a non-return-to-zero code sent by the interface circuit, and compares with a sequence of known response frames generated by itself to detect whether there is an error. In addition, a printed circuit board pad is provided on the two signal lines of the differential signal positive terminal and the negative terminal signal between the interface circuit and the device under test, and the test pin is soldered, and the ground test pin is soldered. . In addition, the detecting circuit may be a signal receiving branch circuit, one end of which is connected to each interface circuit, the other end is connected to the signal branching circuit and is connected to the computer through the test device interface, and the synchronous electronic switch is used to enable the computer to separately Perform PING packet test with each Ethernet port. The utility model has the beneficial effects that: the multi-network port testing device according to the utility model can verify whether the PING pass test device is correct, and can test the multi-network port, and the test speed is fast; Pins can also quickly locate faults. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural view of a multi-network port testing device according to an embodiment of the present invention; FIG. 2 is a schematic structural view of a multi-network port testing device according to another embodiment of the present invention. detailed description
以下， 参考附图 1~2详细描述本实用新型的多网口测试装置。 实施例一 如图 1所示， 该测试装置包括， 多个接口电路、 发信号分支电路以及检 测电路。 其中，在该测试装置的接口电路一侧设置有与被测设备相应的网口插头 (例如 RJ45插头：)， 以在测试被测设备时， 将各个插头一并插入到被测设备 的各个网口； 在该测试装置的另一端， 通过测试装置接口与计算机相连， 以 接收计算机发送来的测试信号， 以及与检测电路相连。 该接口电路， 完成与 被测设备网口之间的匹配， 将发信号分支电路发送来的 PING包直接发给被 测设备相应的 RJ45口， 并接收被测设备返回的 PING包应答， 将其中的曼彻 斯特信号 T+T-中 双极性码变换为单极性码后 ， 将非 归零码 ( Non-Return-to-Zero, NRZ )输入至检测电路。 发信号分支电路， 设置在接口电路与该测试装置接口之间， 利用电子开 关周期性切换端口， 向各个接口电路输出各路分 PING包信号。 此外，在接口电路相对于被测设备差分信号正端（ R+ )及负端信号（ R- ) 两信号线上，设有印制板焊盘并焊有测试用插针， 边上焊有接地测试用插针， 以便于当发现问题时， 接入示波器进行检测。 在本实施例中， 该检测电路为与接口电路数目相应的误码检测单元，接 收接口电路发送来的 NRZ 码， 与其自身产生的已知的应答帧序列相比较， 检测各路是否有误码。 其中， 检测电路中各个误码检测单元可与指示灯相连接， 在检测无误码 时， 驱动绿灯亮， 在检测到误码时， 驱动红灯亮。 此时， 可针对显示红灯的 检测电路， 利于测试用插针， 通过示波器检查故障。 在具体测试时， 将如图 1 所示的多网口插头， 一起直接插入被测试设备。 当某路存在故障时， 可直 接可通过指示灯发现。 实施例二 如图 2所示， 该测试装置包括， 多个接口电路、 发信号分支电路以及检 测电路。 其中， 接口电路， 完成与被测设备网口之间的匹配， 将发信号分支电路 发送来的 PING包直接发给被测设备相应的 RJ45口，并接收被测设备返回的 PING包应答， 将其中的曼彻斯特信号 T+T-中输入到检测电路。 发信号分支电路， 设置在接口电路与该测试装置接口之间， 利用电子开 关周期性切换端口， 向各个接口电路输出各路分 PING包信号。 同样， 在本实施例中， 在相对于被测设备差分信号正端 （R+ ) 及负端 信号 （R- ) 两信号线上， 设有印制板焊盘并焊有测试用插针， 边上焊有接地 测试用插针， 以便于当发现问题时， 接入示波器进行检测。 在本实施例中， 该检测电路为收信号分支电路， 其一端连接至各个接口 电路， 另一端连接至发信号分支电路以及通过测试装置接口连接至计算机， 其利用同步电子开关，使计算机能分别同每一路以太网口进行 PING包测试。 即， 该收信号分支电路利用切换时钟， 与发信号分支电路同步完成周期性切 换端口， 并由计算机对 PING包质量进行判断。 在本实施例中， 可直接通过计算机对 PING包应答信号判断网口质量。 在具体测试时， 如图 2所示， 将该测试装置的各个网口插头， 一起直接插入 被测试设备进行测试。 此外， 基于如上所述， 本实用新型中采用的 RJ45插头， 采用防电磁干 扰型， 外部带有一圈金属。 其中连接 RJ45 插头的网线要用扎线固定在印制 板上。 确保位置固定， 不易移动。 为便于生产测试中插拔便利， RJ45插头上 的卡舌要剪除。 但是， 需要说明的是， 该插头仅是示例性说明， 本实用新型的测试装置 中的插头并不局限于此。 综上所述， 依照本实用新型的多网口测试装置， 在验证信号的完整性的 同时， 能够验证是否正确 PING通测试设备， 且可以测试多网口， 测试速度 快； 通过测试插针， 还能快速定位故障。 以上是为了使本领域普通技术人员理解本实用新型，而对本实用新型所 进行的详细描述， 但可以想到， 在不脱离本实用新型的权利要求所涵盖的范 围内还可以做出其它的变化和修改， 这些变化和修改均在本实用新型的保护 范围内。 Hereinafter, the multi-network port testing device of the present invention will be described in detail with reference to FIGS. 1 to 2. Embodiment 1 As shown in FIG. 1, the testing device includes a plurality of interface circuits, a signaling branch circuit, and a detecting circuit. Wherein, a network port plug corresponding to the device under test (for example, an RJ45 plug:) is disposed on the interface circuit side of the test device, so that when testing the device under test, each plug is inserted into each network of the device under test. At the other end of the test device, the test device interface is connected to the computer to receive the test signal sent by the computer and connected to the detection circuit. The interface circuit, completed and Matching between the network ports of the device under test, send the PING packet sent by the signaling branch circuit directly to the corresponding RJ45 port of the device under test, and receive the PING packet response returned by the device under test, and the Manchester signal T+T - After converting the medium bipolar code to a unipolar code, input a Non-Return-to-Zero (NRZ) to the detection circuit. The signal branch circuit is disposed between the interface circuit and the test device interface, and periodically switches the port by using an electronic switch, and outputs a PING packet signal to each interface circuit. In addition, the interface circuit is provided with a printed circuit board pad and soldered with test pins on the differential signal positive (R+) and negative (R-) signal lines of the device under test, and grounded on the side. Test pins so that when problems are found, access the oscilloscope for detection. In this embodiment, the detecting circuit is an error detecting unit corresponding to the number of interface circuits, and the NRZ code sent by the receiving interface circuit is compared with a known sequence of response frames generated by itself, and detecting whether each channel has a bit error. . Wherein, each error detecting unit in the detecting circuit can be connected with the indicator light, and when the error is detected, the driving green light is on, and when the error is detected, the driving red light is on. At this time, for the detection circuit that displays the red light, the test pin is facilitated, and the fault is checked by the oscilloscope. In the specific test, the multi-network port plug shown in Figure 1 is directly inserted into the device under test. When there is a fault in a certain way, it can be found directly through the indicator light. Embodiment 2 As shown in FIG. 2, the testing device includes a plurality of interface circuits, a signaling branch circuit, and a detecting circuit. The interface circuit completes the matching with the network port of the device under test, and sends the PING packet sent by the signaling branch circuit directly to the corresponding RJ45 port of the device under test, and receives the PING packet response returned by the device under test, and The Manchester signal T+T- is input to the detection circuit. The signal branch circuit is disposed between the interface circuit and the test device interface, and periodically switches the port by using an electronic switch, and outputs a PING packet signal to each interface circuit. Similarly, in this embodiment, a printed circuit board pad is provided on the two signal lines of the positive signal (R+) and the negative terminal signal (R-) of the differential signal of the device under test, and the test pin is soldered. A grounding test pin is soldered on the top to facilitate access to the oscilloscope for detection when a problem is found. In this embodiment, the detecting circuit is a signal receiving branch circuit, one end of which is connected to each interface circuit, the other end is connected to the signal branching circuit and is connected to the computer through the test device interface, and the synchronous electronic switch is used to enable the computer to separately Perform PING packet test with each Ethernet port. That is, the signal receiving branch circuit uses the switching clock to complete the periodic switching port in synchronization with the signaling branch circuit, and the PC determines the quality of the PING packet. In this embodiment, the quality of the network port can be determined directly by the computer to the PING packet response signal. During the specific test, as shown in FIG. 2, each network port plug of the test device is directly inserted into the device under test for testing. Further, based on the above, the RJ45 plug used in the present invention is of an electromagnetic interference prevention type with a metal ring on the outside. The cable connecting the RJ45 plug should be fastened to the printed board with a cable. Make sure the position is fixed and not easy to move. In order to facilitate the insertion and removal of the production test, the tab on the RJ45 plug should be cut off. However, it should be noted that the plug is merely an exemplary description, and the plug in the test device of the present invention is not limited thereto. In summary, according to the multi-network port testing device of the present invention, while verifying the integrity of the signal, it is possible to verify whether the PING test device is correct, and the multi-network port can be tested, and the test speed is fast; It also quickly locates faults. The above is a detailed description of the present invention to enable those skilled in the art to understand the present invention, but it is contemplated that other variations may be made without departing from the scope of the invention. Modifications, such changes and modifications are within the scope of the invention.

Claims

权 利 要 求 书 Claim
1. 一种多网口测试装置， 其特征在于， 包括多个接口电路、 发信号分支 电路以及检测电路， 其中， 所述各个接口电路， 其一侧设均有与被测设备相应的网口插头， 另一侧分别与检测电路相连接， 将发信号分支电路发送来的分 PING 包信号发给被测设备相应的网口， 并接收被测设备针对所述分 PING 包信号返回的信号， 将其发送至所述检测电路； 所述发信号分支电路， 设置在接口电路与发送 PING包源的计算 机之间， 向各个接口分别输出来自所述 PING包源的各路所述分 PING 包信号； 所述检测电路， 检测所述各个接口电路分别发送来的被测设备返 回的信号中是否有误码。 A multi-network port testing device, comprising: a plurality of interface circuits, a signal branching circuit, and a detecting circuit, wherein each of the interface circuits has a network port corresponding to the device under test The other side of the plug is connected to the detecting circuit, and sends the PING packet signal sent by the signal transmitting circuit to the corresponding network port of the device under test, and receives the signal returned by the device under test for the PING packet signal. Sending the signal to the detection circuit; the signal branching circuit is disposed between the interface circuit and the computer that sends the PING packet source, and outputs the PING packet signal from each of the PING packet sources to each interface. The detecting circuit detects whether there is an error in the signal returned by the device under test sent by each interface circuit.
2. 如权利要求 1 所述的多网口测试装置， 其特征在于， 在所述发信号分 支电路中设置有电子开关周期性切换端口， 并通过所述电子开关周期 性切换端口向各个接口输出各路所述分 PING包信号。  2. The multi-network port testing device according to claim 1, wherein an electronic switch periodic switching port is disposed in the signaling branch circuit, and the electronic switch periodically switches a port to output to each interface. Each of the ways is divided into PING packet signals.
3. 如权利要求 1或 2所述的多网口测试装置， 其特征在于， 所述接口电 路， 将所述返回的信号发送至所述检测电路时， 将其中的曼彻斯特信 号中双极性码变换为单极性码后， 将非归零码输入至所述检测电路。  The multi-network port testing device according to claim 1 or 2, wherein the interface circuit transmits the returned signal to the detecting circuit, and the bipolar code of the Manchester signal therein After converting to a unipolar code, a non-return to zero code is input to the detection circuit.
4. 如权利要求 3所述的多网口测试装置， 其特征在于， 所述检测电路为 与接口电路数目相应的误码检测单元， 接收接口电路发送来的非归零 码， 与其自身产生的已知的应答帧序列相比较， 检测是否有误码。  The multi-network port testing device according to claim 3, wherein the detecting circuit is an error detecting unit corresponding to the number of interface circuits, and receives a non-return-to-zero code sent by the interface circuit, and generates the same The known response frame sequences are compared to detect if there is a bit error.
5. 如权利要求 4所述的多网口测试装置， 其特征在于， 在所述接口电路 与被测设备之间的差分信号正端及负端信号两信号线上， 设有印制板 焊盘并垾有测试用插针， 并焊有接地测试用插针。  The multi-network port testing device according to claim 4, wherein a printed circuit board is provided on the two signal lines of the differential signal positive end and the negative end signal between the interface circuit and the device under test. The test leads are pinned and the ground test pins are soldered.
6. 如权利要求 1或 2所述的多网口测试装置， 其特征在于， 所述检测电 路为收信号分支电路， 其一端连接至各个接口电路， 另一端连接至发 信号分支电路以及通过测试装置接口连接至计算机， 其利用同步电子 开关， 使计算机能分别同每一路以太网口进行 PING包测试。  The multi-network port testing device according to claim 1 or 2, wherein the detecting circuit is a signal receiving branch circuit, one end of which is connected to each interface circuit, and the other end of which is connected to the signal branching circuit and passes the test. The device interface is connected to the computer, which utilizes a synchronous electronic switch to enable the computer to perform a PING packet test with each Ethernet port.
PCT/CN2007/003494 2007-10-26 2007-12-07 Multi-port testing device WO2009052666A1 (en)

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