JP2009171029A - Apparatus and method for determining connection state of interface connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To determine whether an interface connector between an insert substrate such as a blade and an inserted substrate such as a housing unit is connected completely or not before turning a main power supply on. <P>SOLUTION: An apparatus for determining connection state of an interface connector comprises a means for delivering an AC test signal from an insert substrate to an inserted substrate, and a means for determining whether an error is included in an AC test signal send back from the inserted substrate to the insert substrate or not, and determining that an interface connector between the insert substrate and the inserted substrate is connected incompletely if an error is included. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an interface / connector connection state determination apparatus and apparatus for determining whether or not an interface connector between an insertion board and an insertion board is sufficiently connected.

  The server blade refers to a server function that is integrated on a single board. A system in which a plurality of server blades, which are insertion boards, are mounted on a storage unit, which is a board to be inserted, and operates as a single server is called a blade server.

  A single server blade is equipped with all elements necessary to operate as a computer, such as memory, hard disk, and microprocessor. The blade server housing is lined with interface connectors for storing server blades, and by installing the required number of server blades to the interface connector installed in the storage unit, the blade server is operated. Build up.

  In addition to servers, blades may have network equipment.

  The blade PC is a collection of main parts such as a processor, a memory, and a hard disk of a client personal computer on a thin board called a “blade”. A plurality of blades are mounted on a rack, and a large number of client computers are gathered in a single case. Also in this case, the storage unit that is the board to be inserted on the rack side and the blade that is the insertion board are connected via the interface connector.

  By the way, with the conventional methods, there is a possibility that the power of the blade body (insertion board) may be turned on when the interface connector is incompletely connected. It was found that the interface / connector was incompletely connected only after detecting a malfunction such as failure.

Patent Document 1 discloses a method that can determine the line status of “incomplete line disconnection”. In this method, flag abnormality, CRC abnormality, short frame abnormality and overrun abnormality are detected, and if the abnormality count value within a certain time is equal to or greater than a certain value, it is determined that “incomplete line disconnection” has occurred .
JP 2006-287823 A

  In the invention related to the present invention, the apparatus is turned on in order to determine whether or not to turn on the main power only by determining whether the signal line for confirming the connection is connected in a direct current manner or not. In some cases, malfunctions may be found after operation, such as communication with a high-frequency signal cannot be performed later.

  In addition, the invention of Patent Document 1 is not specialized for connector connection, and does not determine the connection state before the apparatus is operated, so information indicating which connector is insufficiently connected is provided. It cannot be obtained, and even if the connection is incomplete, the device enters an operating state.

  Therefore, the present invention provides an interface that makes it possible to determine whether or not an interface connector between a board such as a blade and an inserted board such as a storage unit is completely connected before the main power supply is turned on. An object of the present invention is to provide a connector connection state determination device and method.

  According to the present invention, a means for outputting an AC test signal from the insertion substrate to the insertion substrate, and whether or not an error is included in the AC test signal folded back to the insertion substrate by the insertion substrate is determined. And an interface connector comprising: means for determining that the interface connector between the insertion board and the board to be inserted is incompletely connected when an error is included; A connection state determination device is provided.

  According to the present invention, the step of outputting an AC test signal from the insertion board to the board to be inserted, and whether or not an error is included in the AC test signal turned back to the insertion board by the board to be inserted. And determining that an interface connector between the insertion board and the board to be inserted is incompletely connected if an error is included. A method for determining the connector connection state is provided.

  Furthermore, according to the present invention, there is provided a substrate to be inserted, characterized in that it is provided with a wiring that turns an AC test signal input from the insertion substrate through the interface connector back to the insertion substrate through the interface connector. The

  According to the present invention, it is possible to determine whether or not the insertion board is completely connected to the board to be inserted by the interface connector before the insertion board enters the operating state.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings.

[Embodiment 1]
FIG. 1 is a block diagram showing a system including an interface / connector connection state determination apparatus according to the present invention.

  Referring to FIG. 1, this system includes a blade body 100, a storage unit 200, an interface connector 1 (reference numeral 40), an interface connector 2 (reference numeral 41), an interface connector 3 (reference numeral 42), and an interface connector 4 ( 43).

  Each interface connector includes a portion on the storage unit 200 side and a portion on the blade main body side 100 side. A large number of pins are provided in one part, and a large number of holes are provided in the other part. When the pins are fitted into the holes, these parts are connected. The pins and the holes are made of a conductive material such as copper, and are used for exchanging electrical signals between the blade body 100 and the storage unit 200. The pin and the hole may be gold-plated. In this case, the electrical connection state between the pin and the hole becomes good, and the electrical connection state is prevented from deteriorating with time.

  The blade body 100 is an insertion substrate, and the storage unit 200 is an insertion substrate.

  The blade body includes an interface check controller 10, a BMC (board management controller) 20, and a display device 30. Each of the interface check controller 10 and the BMC 20 may be configured by a dedicated LSI, but may be realized by a CPU executing a program. The display device 30 is, for example, an LCD (Liquid Crystal Display), but may be an LED (Light Emitting Diode). The interface check controller 10, the BMC 20, and the display device 30 constitute an interface connector connection state determination device. In the example of FIG. 1, the interface / connector connection state determination device is provided in the blade body, but may exist as a separate device from the blade body.

  The interface check controller 10 includes a status register 1A, an error register 4A, a transmission port 2A, a reception port 2B, a transmission port 3A, a reception port 3B, a transmission port 5A, a reception port 5B, and a transmission port 6A. The receiving side port 6B is provided.

  The status register 1A indicates whether or not the value written in the error register 4A is valid. For example, if the value of the status register 1A is HIGH, the value written in the error register 4A is valid.

  The error register 4A has a bit for storing a flag indicating whether the electrical connection state of each interface connector is normal or abnormal and whether the interface connector connected to the blade body is normal as a whole or not It has a bit for storing a flag indicating whether or not. Therefore, in the example of FIG. 1, the error register 4A has 5 (= 4 + 1) bits corresponding to the four interface connectors.

  An AC test signal is output from each transmission port. The frequency of the AC test signal is at least the highest frequency of the signal that passes through the interface connector when the blade body is in operation.

  If the connection state of each interface connector is normal, the AC test signal output from each transmission port reaches each interface connector via the wiring of the blade body 100, and the storage unit 200 via the interface connector. To reach. The storage unit 200 has wiring for returning an AC test signal coming from a pin (or hole) in the interface connector to a hole (or pin) in another position of the interface connector for each interface connector. is doing. Therefore, if the connection state of each interface connector is normal, the AC test signal that has reached the storage unit 200 is turned back to the blade body 100 side by the storage unit, reaches the blade body via the interface connector, and the blade It reaches the reception side port corresponding to the transmission side port via the wiring of the main body.

  The interface check controller determines whether or not the AC test signal received by the receiving port is normal. For the determination, for example, the pattern of the AC test signal output from the transmission side port is included as known information, and the AC test signal received from the reception port is the pattern of the AC test signal transmitted from the transmission port. Determine whether they are the same. Whether the AC signal received by the receiving port is normal by applying the AC test signal received by the receiving port to the CRC so that the AC test signal has a CRC (Cyclic Redundancy Check) pattern. It can also be judged. In addition, the AC test signal received by the receiving port is normal by using the AC test signal as a code word for error detection such as a BCH codeword and subjecting the AC test signal received by the receiving port to error check. It can also be determined. If a simple test is desired, it can be determined by parity check whether the AC test signal received by the receiving port is normal.

  As shown in FIG. 1, for each interface connector, it is determined whether or not the AC test signal received by the receiving port is normal through a separate AC test signal. Can be identified individually.

  In addition, if at least one interface connector is not properly connected, the blade body as a whole cannot correctly pass signals to and from the storage unit, so at least one interface connector is normally connected. If the error flag for the entire blade body obtained by this logical sum is true, an error flag for indicating that the error is not obtained is obtained by calculating the logical sum of the error flags for all the interfaces and connectors. The error state is displayed on the display device 30, and the main power supply is prohibited from being turned on.

  Next, the operation of the interface / connector connection state determination apparatus according to the present embodiment will be described with reference to FIGS.

  FIG. 2 is a flowchart showing the operation of the interface check controller 10.

  Referring to FIG. 2, when the standby power is turned on, the interface check controller 10 first sets the value of the status register 1A to a value indicating “Not Ready” (step S101).

  Next, all the error flags in the error register 4A (the error flag for each interface connector and the error flag for the entire board. A total of 5 (= 4 + 1) error flags) are reset (step S103).

  Next, an interface / connector connection test is performed (step S105). This connection test is as described above. That is, in the connection test, the connection state of the interface connector is tested for each interface connector by an AC test signal.

  Next, it is determined whether or not there is an error in the AC test signal that has passed through the interface connector 1 (reference numeral 40) (step S107). If there is an error in the AC test signal that has passed through the interface connector 1 (reference numeral 40), the error flag corresponding to the interface connector 1 in the error register 4A and the main error flag for the entire board are set (step). S109). This is possible by storing the AC test signal received by the receiving port 2B in the port register.

  Next, it is determined whether or not there is an error in the AC test signal that has passed through the interface connector 2 (reference numeral 41) (step S111). If there is an error in the AC test signal passing through the interface connector 2 (reference numeral 41), an error flag corresponding to the interface connector 2 in the error register 4A and a main error flag for the entire board are set (step). S113). This is possible by storing the AC test signal received by the receiving port 5B in the port register.

  Next, it is determined whether or not there is an error in the AC test signal that has passed through the interface connector 3 (reference numeral 42) (step S115). If there is an error in the AC test signal that has passed through the interface connector 3 (reference numeral 42), the error flag corresponding to the interface connector 3 in the error register 4A and the main error flag for the entire board are set (step). S117). This can be achieved by storing the AC test signal received by the receiving port 6B in the port register.

  Next, it is determined whether or not there is an error in the AC test signal that has passed through the interface connector 4 (reference numeral 43) (step S119). If there is an error in the AC test signal that has passed through the interface connector 4 (reference numeral 43), the error flag corresponding to the interface connector 4 in the error register 4A and the main error flag for the entire board are set (step). S121). This can be achieved by storing the AC test signal received by the receiving port 3B in the port register.

  Next, the value of the status register 1A is set to a value indicating “Ready” (step S123).

  FIG. 3 is a flowchart showing the operation of the BMC 20.

  Referring to FIG. 3, when standby power is turned on, the BMC 20 first determines whether or not the value of the status register 1A is a value indicating “Ready” (step S131). If the value of the status register 1A is not a value indicating “Ready” (No in step S131), this determination is repeated. The status register 1A is set to a value indicating “Not Ready” in step S101 of FIG. 2 and set to a value indicating “Ready” in step S123. Therefore, until step S123 of the interface check controller 10 is completed. The BMC 20 repeats step S131.

  If the value of the status register 1A becomes a value indicating “Ready” (Yes in Step S131), it is determined whether or not the main error flag is set (Step S133).

  If it is not set (No in step S133), information indicating no error is displayed on the display device 30 (step S135). For example, the characters “No Connection Error” are displayed on the LCD.

  Next, the main power supply is turned on (step S137).

  If the main error flag is set (Yes in step S133), information indicating that there is an error is displayed on the display device 30 (step S139). For example, the characters “Connection Error Occurs” are displayed on the LCD.

  Next, it is determined whether or not an error flag corresponding to the interface connector 1 (reference numeral 40) is set (step S141). If the error flag corresponding to the interface connector 1 (reference numeral 40) is set (Yes in step S141), information indicating that there is an error in the connection of the interface connector 1 (reference numeral 40) is displayed on the display device 30. (Step S143). For example, the characters “Error Occurrers in Connector 1” are displayed on the LCD. If the error flag corresponding to the interface connector 1 (reference numeral 40) is not set (No in step S141), information indicating that there is no error in the connection of the interface connector 1 (reference numeral 40) is displayed on the display device 30. (Step S145). For example, the characters “No Error Occurrers in Connector 1” are displayed on the LCD.

  Next, it is determined whether or not an error flag corresponding to the interface connector 2 (reference numeral 41) is set (step S147). If the error flag corresponding to the interface connector 2 (reference numeral 41) is set (Yes in step S147), information indicating that there is an error in the connection of the interface connector 2 (reference numeral 41) is displayed on the display device 30. (Step S149). For example, the characters “Error Occurrers in Connector 2” are displayed on the LCD. If the error flag corresponding to the interface connector 2 (reference numeral 41) is not set (No in step S147), information indicating that there is no error in the connection of the interface connector 2 (reference numeral 41) is displayed on the display device 30. (Step S151). For example, the characters “No Error Occurrers in Connector 2” are displayed on the LCD.

  Next, it is determined whether or not an error flag corresponding to the interface connector 3 (reference numeral 42) is set (step S153). If the error flag corresponding to the interface connector 3 (reference numeral 42) is set (Yes in step S153), information indicating that there is an error in the connection of the interface connector 3 (reference numeral 42) is displayed on the display device 30. (Step S155). For example, the characters “Error Occurrers in Connector 3” are displayed on the LCD. If the error flag corresponding to the interface connector 3 (reference numeral 42) is not set (No in step S153), information indicating that there is no error in the connection of the interface connector 3 (reference numeral 42) is displayed on the display device 30. (Step S157). For example, the characters “No Error Occurrers in Connector 3” are displayed on the LCD.

  Next, it is determined whether or not an error flag corresponding to the interface connector 4 (reference numeral 43) is set (step S159). If the error flag corresponding to the interface connector 4 (reference numeral 43) is set (Yes in step S159), information indicating that there is an error in the connection of the interface connector 4 (reference numeral 43) is displayed on the display device 30. (Step S161). For example, the characters “Error Occurrers in Connector 4” are displayed on the LCD. If the error flag corresponding to the interface connector 4 (reference numeral 43) is not set (No in step S159), information indicating that there is no error in the connection of the interface connector 4 (reference numeral 43) is displayed on the display device 30. (Step S163). For example, the characters “No Error Occurrers in Connector 4” are displayed on the LCD.

  In step S161 or S163, the process ends, and the main power is not turned on.

  FIG. 4 is a timing chart when the connection states of all the interfaces and connectors are normal.

  Referring to FIG. 4, immediately after the standby power is turned on, the value of the status register 1A is a value representing “Not Ready”. The value of the main error register is Low, but the value of the status register 1A is “Not Ready”, so the value of the main error register is invalid. Further, the display device 30 displays that the test is being performed. For example, the characters “Inspecting Connection Now” are displayed.

  When the test by the interface check controller 10 is completed, the value of the status register 1A changes to a value indicating “Ready”.

  Subsequently, since the BMC 20 performs steps S135 and S137, the display device 30 displays “no error” and the main power is turned on.

  FIG. 5 is a timing chart when the connection state of at least some of the interface connectors is abnormal.

  Referring to FIG. 5, immediately after the standby power is turned on, the value of the status register 1A is a value indicating “Not Ready”. The value of the main error register is Low, but the value of the status register 1A is “Not Ready”, so the value of the main error register is invalid. Further, the display device 30 displays that the test is being performed. For example, the characters “Inspecting Connection Now” are displayed.

  When the test by the interface check controller 10 is completed, the value of the status register 1A changes to a value indicating “Ready”.

  Subsequently, in order for the BMC 20 to perform steps after step S139, the display device 30 displays information indicating that “there is an error” and information that can identify the interface connector having the error. Main power is not turned on.

  According to the first embodiment, since the connection states of all the interface connectors are individually checked, it is possible to identify an interface connector having a poor connection state. Also, if the connection state of at least one interface connector is defective, the power is not turned on, so that it is possible to prevent an error from occurring due to the connection failure of the interface connector during operation.

[Embodiment 2]
In the first embodiment, error checking is performed on all interface connectors. Therefore, for example, since only the interface connector 2 (reference numeral 41) is inclined, it is possible to cope with the case where an error occurs only in the interface connector 2 (reference numeral 41).

  However, the cause of the insufficient connection state of the interface connector is often that the entire blade body 100 is housed in the storage unit 200 obliquely. In such a case, it is only necessary to confirm the connection state of the interface connectors (interface connector 1 (reference numeral 40) and interface connector 4 (reference numeral 43)) at both ends. The embodiment corresponds to such a case.

  As shown in FIG. 6, an AC test signal is passed through only the interface connector 1 (reference numeral 40) and the interface connector 4 (reference numeral 43).

  The operation of the interface check controller 10 conforms to that shown in FIG. In the flowchart shown in FIG. 2, steps S111, S113, S115, and S117 are deleted from the operation of the interface check controller 10 according to the second embodiment.

  The operation of the BMC 20 conforms to that shown in FIG. In the flowchart shown in FIG. 3, the operation of the BMC 20 in the second embodiment is obtained by deleting steps S147, S149, S151, S153, S155, and S157.

  According to the second embodiment, since the connection state of the interface connector at both ends is checked, if the connection state of any of the interface connectors at both ends is defective, it can be detected. Further, the connection state of any of the interfaces / connectors at both ends is often poor when the entire blade body 100 is housed in the storage unit 200 obliquely. Connection failure can be detected. Furthermore, if the connection state of at least one of the interface connectors at both ends is not good, the power is not turned on, so that an error may occur due to a connection failure between at least the interface connectors at both ends during operation. Can be prevented.

[Embodiment 3]
The third embodiment cannot detect which interface connector is incompletely connected. However, if the connection state of at least one of the interface connectors 1 to 4 is incomplete, it can be detected in common with the first embodiment.

  The AC test signal path in the third embodiment is as shown in FIG. That is, there is only one pair of the transmission side port and the reception side port. The AC test signal transmitted from the transmission side port 2A reaches the interface connector 1 (reference numeral 40) via the wiring of the blade body 100. Thereafter, the AC test signal is sent to the storage unit 200, the interface connector 1 (reference numeral 40), the blade body 100, the interface connector 2 (reference numeral 41), the storage unit 200, the interface connector 2 (reference numeral 41), the blade body 100, The interface connector 3 (reference numeral 42), the storage unit 200, the interface connector 3 (reference numeral 42), the blade body 100, the interface connector 4 (reference numeral 43), the storage unit 200, and the interface connector 4 (reference numeral 43) are arranged in this order. It goes through the zigzag and then reaches the receiving port 2B through the wiring of the blade body 100.

  Next, the operation of the interface / connector connection state determination apparatus according to the present embodiment will be described with reference to FIG. 4 and FIGS.

  FIG. 8 is a flowchart showing the operation of the interface check controller 10.

  Referring to FIG. 8, when the standby power is turned on, the interface check controller 10 first sets the value of the status register 1A to a value indicating “Not Ready” (step S201).

  Next, the error flag for the entire board in the error register 4A is reset (step S203).

  Next, an interface / connector connection test is performed (step S205). In the connection test, the connection state of all the interface connectors is tested by one AC test signal.

  Next, it is determined whether or not there is an error in the AC test signals that have passed through all the interface connectors 1 to 4 (reference numerals 40 to 43) (step S207). If there is an error in the AC test signals that have passed through all the interface connectors 1 to 4 (reference numerals 40 to 43) (Yes in step S207), the main error flag for the entire board in the error register 4A is set. (Step S209). This is possible by storing the AC test signal received by the receiving port 2B in the port register.

  Next, the value of the status register 1A is set to a value indicating “Ready” (step S211).

  FIG. 9 is a flowchart showing the operation of the BMC 20.

  Referring to FIG. 9, when the standby power is turned on, the BMC 20 first determines whether or not the value of the status register 1A indicates “Ready” (step S221). If the value of the status register 1A is not a value indicating “Ready” (No in step S221), this determination is repeated. The status register 1A is set to a value indicating “Not Ready” in step S201 of FIG. 8 and set to a value indicating “Ready” in step S211. Therefore, until step S211 of the interface check controller 10 is completed. The BMC 20 repeats step S221.

  If the value of the status register 1A becomes a value indicating “Ready” (Yes in Step S221), it is determined whether or not the main error flag is set (Step S223).

  If it is not set (No in step S223), information indicating no error is displayed on the display device 30 (step S225). For example, the characters “No Connection Error” are displayed on the LCD.

  Next, the main power supply is turned on (step S227).

  If the main error flag is set (Yes in step S223), information indicating that there is an error is displayed on the display device 30 (step S229). For example, the characters “Connection Error Occurs” are displayed on the LCD.

  In step S229, the process ends, and the main power is not turned on.

  FIG. 4 is a timing chart when the connection states of all the interfaces and connectors are normal.

  Referring to FIG. 4, immediately after the standby power is turned on, the value of the status register 1A is a value representing “Not Ready”. The value of the main error register is Low, but the value of the status register 1A is “Not Ready”, so the value of the main error register is invalid. Further, the display device 30 displays that the test is being performed. For example, the characters “Inspecting Connection Now” are displayed.

  When the test by the interface check controller 10 is completed, the value of the status register 1A changes to a value indicating “Ready”.

  Subsequently, since the BMC 20 performs steps S225 and S227, the display device 30 displays “no error” and the main power is turned on.

  FIG. 10 is a timing chart when the connection state of at least some of the interface connectors is abnormal.

  Referring to FIG. 10, immediately after the standby power is turned on, the value of the status register 1A is a value representing “Not Ready”. The value of the main error register is Low, but the value of the status register 1A is “Not Ready”, so the value of the main error register is invalid. Further, the display device 30 displays that the test is being performed. For example, the characters “Inspecting Connection Now” are displayed.

  When the test by the interface check controller 10 is completed, the value of the status register 1A changes to a value indicating “Ready”.

  Subsequently, since the BMC 20 performs Step S229, the display device 30 displays information indicating that “error exists”. Main power is not turned on.

  According to the third embodiment, since the connection state is checked based on whether or not the connection check signal flowing through one wiring passing through all the interface connectors is normal, one wiring, one transmission side port and reception If the connection state of at least one interface connector among the interface connectors 1 to 4 is incomplete by only the side port, it can be detected. Also, if the connection state of at least one interface connector is defective, the power is not turned on, so that it is possible to prevent an error from occurring due to the connection failure of the interface connector during operation.

[Embodiment 4]
In the third embodiment, error checking is performed for all interface connectors.

  However, the cause of the insufficient connection state of the interface connector is often that the entire blade body 100 is housed in the storage unit 200 obliquely. In such a case, it is only necessary to confirm the connection state of the interface connectors (interface connector 1 (reference numeral 40) and interface connector 4 (reference numeral 43)) at both ends. The embodiment corresponds to such a case.

  As shown in FIG. 11, the AC test signal is passed only through the interface connector 1 (reference numeral 40) and the interface connector 4 (reference numeral 43).

  The operation of the interface check controller 10 is the same as that shown in FIG.

  The operation of the BMC 20 is the same as that shown in FIG.

  According to the fourth embodiment, since the connection state is checked based on whether or not the connection check signal flowing through one wiring passing through the interface connectors at both ends is normal, one wiring, one transmission side port and reception If the connection state of at least one of the interface connectors at both ends is incomplete, it can be detected only by the side port. Further, the connection state of any of the interfaces / connectors at both ends is often poor when the entire blade body 100 is housed in the storage unit 200 obliquely. Connection failure can be detected. Furthermore, if the connection state of at least one of the interface connectors at both ends is not good, the power is not turned on, so that an error may occur due to a connection failure between at least the interface connectors at both ends during operation. Can be prevented.

  In the above embodiment, the blade has been described as an example of the insertion board. However, the present invention can be used to determine the connection state of a general insertion board to the storage unit.

  In the above-described embodiment, the storage unit has been described as an example of the inserted substrate. However, the present invention can be used to determine the connection state of the general inserted substrate to the general inserted substrate. .

It is a block diagram which shows the system containing the interface connector connection state judgment apparatus by Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the interface check controller by Embodiment 1 of this invention. It is a flowchart which shows operation | movement of BMC20 by Embodiment 1 of this invention. 6 is a timing chart in a case where connection states of all interface connectors are normal according to the first and third embodiments of the present invention. 6 is a timing chart when the connection state of at least some of the interface connectors is abnormal according to the first embodiment of the present invention. It is a block diagram which shows the system containing the interface connector connection state judgment apparatus by Embodiment 2 of this invention. It is a block diagram which shows the system containing the interface connector connection state judgment apparatus by Embodiment 3 of this invention. It is a flowchart which shows operation | movement of the interface check controller by Embodiment 3 of this invention. It is a flowchart which shows operation | movement of BMC20 by Embodiment 3 of this invention. It is a timing chart in case the connection state of at least one part interface connector is abnormal by Embodiment 3 of this invention. It is a block diagram which shows the system containing the interface connector connection state judgment apparatus by Embodiment 4 of this invention.

Explanation of symbols

1A Status register 2A Transmission side port 1
2B Receiver port 1
3A Sender port 2
3B Receiver port 2
4A Error register 5A Transmission side port 3
5B Receiver port 3
6A Sender port 4
6B Receiver port 4
10 Interface Check Controller 20 Board Management Controller 40 Interface Connector 1
41 Interface connector 2
42 Interface connector 3
43 Interface Connector 4
100 Blade body 200 Storage unit

Claims (25)

Means for outputting an AC test signal from the insertion substrate to the insertion substrate;
It is determined whether or not an error is included in the AC test signal folded back to the insertion board by the insertion board, and if an error is included, between the insertion board and the insertion board Means for determining that the interface connector is incompletely connected;
An interface / connector connection state determination device comprising: In the interface connector connection state determination device according to claim 1,
The interface / connector connection state determination device is provided on an insertion board for determining a connection state. In the interface connector connection state determination device according to claim 1 or 2,
The interface / connector connection state determination device operates with a standby power supply. In the interface connector connection state determination device according to claim 3,
The standby power supply is supplied to the interface / connector connection state determination device even when the insertion substrate is incompletely connected to the insertion substrate. . In the interface connector connection state determination apparatus according to any one of claims 1 to 4,
The interface connector connection state determination device according to claim 1, wherein the frequency of the AC test signal is at least the same as the highest frequency of the signal passing through the interface connector in an operating state. In the interface connector connection state judgment device according to any one of claims 1 to 5,
The AC test signal has two systems, the AC test signal of one system passes through an interface connector provided at one end of the insertion board, and the AC test signal of the other system passes through the other of the insertion board. An interface / connector connection state judgment device characterized by passing through an interface / connector provided at an end. In the interface connector connection state judgment device according to any one of claims 1 to 5,
The number of AC test signals is the same as the number of interface connectors, and each AC test signal passes through each interface connector. In the interface connector connection state judgment device according to any one of claims 1 to 5,
There is one AC test signal, and the AC test signal of one system passes through interface connectors at both ends of the insertion board. In the interface connector connection state judgment device according to any one of claims 1 to 5,
There is one AC test signal, and the AC test signal of one system passes through all the interface connectors of the insertion board. In the interface connector connection state judgment device according to any one of claims 1 to 9,
An interface / connector connection state determination device, further comprising means for prohibiting turning on of a main power supply when it is determined that the insertion board is incompletely connected to the insertion board. In the interface connector connection state judgment device according to any one of claims 1 to 10,
An interface / connector connection state determination device, further comprising means for displaying the content of the determination when the insertion substrate is determined to be incompletely connected to the insertion substrate. In the interface connector connection state judgment device according to any one of claims 1 to 11,
An interface / connector connection state determination device characterized in that determination of whether or not the error is included is made by comparing an output signal and a return signal, CRC of the return signal, or parity check of the return signal. Outputting an AC test signal from the insertion board to the insertion board;
It is determined whether or not an error is included in the AC test signal folded back to the insertion board by the insertion board, and if an error is included, between the insertion board and the insertion board Determining that the interface connector is incompletely connected;
An interface connector connection state determination method comprising: In the interface connector connection state judgment method according to claim 13,
An apparatus for performing an interface / connector connection state determination method is provided on an insertion board from which a connection state is determined. In the interface connector connection state determination method according to claim 13 or 14,
An apparatus for performing an interface / connector connection state determination method, wherein the apparatus operates with a standby power supply. In the interface connector connection state determination method according to claim 15,
The standby power supply is supplied to an apparatus for performing the interface connector connection state determination method even when the insertion board is incompletely connected to the insertion board. State judgment method. In the interface connector connection state judgment method according to any one of claims 13 to 16,
The interface connector connection state determination method, wherein the frequency of the AC test signal is at least the same as the highest frequency of the signal passing through the interface connector in an operating state. The interface connector connection state determination method according to any one of claims 13 to 17,
The AC test signal has two systems, the AC test signal of one system passes through an interface connector provided at one end of the insertion board, and the AC test signal of the other system passes through the other of the insertion board. An interface connector connection state judgment method characterized by passing through an interface connector provided at an end. The interface connector connection state determination method according to any one of claims 13 to 17,
The number of AC test signals is the same as the number of interface connectors, and each AC test signal passes through each interface connector. The interface connector connection state determination method according to any one of claims 13 to 17,
There is one AC test signal, and the AC test signal of one system passes through interface connectors at both ends of the insertion board. The interface connector connection state determination method according to any one of claims 13 to 17,
There is one AC test signal, and the AC test signal of one system passes through all the interface connectors on the insertion board. In the interface connector connection state judgment method according to any one of claims 13 to 21,
An interface connector connection state determination method, further comprising a step of prohibiting turning on of a main power supply when it is determined that the insertion board is incompletely connected to the insertion board. In the interface connector connection state judgment method according to any one of claims 13 to 22,
The interface / connector connection state determination method further comprising a step of displaying a content of the determination when it is determined that the insertion substrate is incompletely connected to the insertion substrate. The interface connector connection state determination method according to any one of claims 13 to 23,
The determination of whether or not the error is included is performed by comparing the output signal and the return signal, CRC of the return signal or parity check of the return signal.   A board to be inserted, comprising: a wiring for returning an AC test signal input from an insertion board via an interface connector to the insertion board via the interface connector.

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