JPH08249202A - Self diagnostic system for information processor - Google Patents

Self diagnostic system for information processor

Info

Publication number
JPH08249202A
JPH08249202A JP7049437A JP4943795A JPH08249202A JP H08249202 A JPH08249202 A JP H08249202A JP 7049437 A JP7049437 A JP 7049437A JP 4943795 A JP4943795 A JP 4943795A JP H08249202 A JPH08249202 A JP H08249202A
Authority
JP
Japan
Prior art keywords
optical
circuit
light emitting
light receiving
self
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7049437A
Other languages
Japanese (ja)
Inventor
Makoto Muramatsu
誠 村松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7049437A priority Critical patent/JPH08249202A/en
Publication of JPH08249202A publication Critical patent/JPH08249202A/en
Pending legal-status Critical Current

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  • Computer And Data Communications (AREA)
  • Optical Communication System (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE: To provide a self diagnostic system with improved cost performance capable of easily and surely securing high reliabiility by a single device by realizing self diagnoses including a light emitting element and a light receiving element without connecting a loop cable to the external part of the device by an optical module capable of internal looping including the light emitting element and the light receiving element. CONSTITUTION: This system is constituted of a light emitting circuit 4a for transducing electric transmission signals 2a1 from a transmission circuit 2a to optical transmission signals 9a, a light receiving circuit 4b for transducing optical reception signals 9b to electric reception signals 2b1, a light emitting connection terminal 5a for connecting the optical transmission signals 9a outputted from the light emitting circuit 4a to an optical interface cable 8a and a line board 1 for which the optical module 3 composed of a fiber 6a for loop for passing the optical transmission signals 9a through to the light receiving circuit 4b as well and optical reflection mirrors 7a and 7b is mounted for respective ports.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、情報処理装置等の自己
診断方式に係り、特に発光回路と受光回路が一体化さ
れ、発光素子と受光素子とを含めた自ポート折り返し機
能を容易に構成可能な特性を活かした自ポート折り返し
機能を持つ光モジュールを実装し、他装置との障害切り
分けの境界となる情報処理装置等の出口まで容易かつ確
実に確認することができる自己診断方式に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-diagnosis method for an information processing apparatus, etc., and in particular, a light emitting circuit and a light receiving circuit are integrated, and a self port folding function including a light emitting element and a light receiving element can be easily constructed. The present invention relates to a self-diagnosis method in which an optical module having a self-port folding function that takes advantage of possible characteristics is mounted and an exit of an information processing device or the like, which is a boundary for fault isolation from other devices, can be easily and surely confirmed.

【0002】[0002]

【従来の技術】情報処理装置等の自己診断方式として、
送信ドライバ及び受信ドライバを除いた内部の折り返し
診断方式と、情報処理装置のインタフェースコネクタに
ループ用のコネクタまたはケーブルを接続して折り返す
外部折り返し診断方式がある。以下、図を参照してこれ
らの自己診断方式を説明する。
2. Description of the Related Art As a self-diagnosis method for information processing devices,
There are an internal loopback diagnosis method excluding the transmission driver and the reception driver, and an external loopback diagnosis method in which a loop connector or a cable is connected to the interface connector of the information processing apparatus to loop back. Hereinafter, these self-diagnosis methods will be described with reference to the drawings.

【0003】図3及び図4は、半導体素子を用い、メタ
ルインタフェースで他装置と接続して通信を行う2回線
収容の回線ボード1の自己診断方式の構成図であり、図
3は情報処理装置の内部折り返し自己診断方式の構成
図、図4は情報処理装置のインタフェースコネクタにル
ープ用のコネクタ又はケーブルを接続して折り返す外部
折り返し自己診断方式の構成図を示す。以下、図3及び
図4により1回線分の動作を例に折り返し動作を説明す
る。
FIGS. 3 and 4 are block diagrams of a self-diagnosis method of a two-line accommodating circuit board 1 that uses a semiconductor element and is connected to another device through a metal interface for communication, and FIG. 3 is an information processing device. FIG. 4 is a block diagram of an internal loopback self-diagnosis system, and FIG. 4 is a block diagram of an external loopback self-diagnosis system in which a loop connector or a cable is connected to an interface connector of an information processing apparatus and the loopback is performed. Hereinafter, the loopback operation will be described with reference to FIGS. 3 and 4 by taking an operation for one line as an example.

【0004】外部折り返し指示信号15aは、インタフ
ェースコネクタにループ用のコネクタやケーブルまたは
インタフェースケーブルが接続されるとオンになリ、な
にも接続されないとオフになる信号を示す。図3では、
インタフェースコネクタに何も接続されていないため、
外部折り返し指示信号15aはオフになり、インバータ
回路124を通して論理積回路122で受信信号126
を抑止すると共に、送信回路11aから出力された送信
信号125が送信ドライバ13aの手前(入力側)から
論理積回路121と論理和回路123を介して受信信号
として受信回路11bに折り返される。これによって、
送信ドライバ13aと受信ドライバ13bを除く折り返
しが構成され、内部折り返し自己診断が可能になる。
The external loopback instruction signal 15a is a signal which is turned on when a loop connector, cable or interface cable is connected to the interface connector, and is turned off when nothing is connected. In FIG.
Since nothing is connected to the interface connector,
The external loopback instruction signal 15a is turned off, and the reception signal 126 is received by the AND circuit 122 through the inverter circuit 124.
The transmission signal 125 output from the transmission circuit 11a is returned to the reception circuit 11b from the front (input side) of the transmission driver 13a via the AND circuit 121 and the OR circuit 123 as a reception signal. by this,
The loopback except the transmission driver 13a and the reception driver 13b is configured, and the internal loopback self-diagnosis becomes possible.

【0005】図4では、インタフェースコネクタにルー
プ用のコネクタ又はインタフェースケーブルが接続され
ているため、外部折り返し指示信号15aはオンにな
り、論理積回路121で送信信号121を抑止すると共
に、インバータ回路124を通して論理積回路122と
論理和回路123を介して受信信号126を受信回路1
1bへ通す。これにより、送信信号121は送信ドライ
バ13aを通してループコネクタ16に出力され、ルー
プコネクタ16で受信ドライバ13bに折り返される。
折り返された信号は受信ドライバ13b、論理積回路1
22、論理和回路123を通して受信回路11bに接続
される。これによって、送信回路と受信回路は、情報処
理装置の回線ボード1のインタフェースコネクタに接続
したループコネクタを通して、送信ドライバと受信ドラ
イバを含めた折り返しが構成され、外部折り返し自己診
断が可能になる。また、ループコネクタの代わりにイン
タフェースケーブルを接続すると回線は他装置へ接続さ
れる。
In FIG. 4, since the loop connector or the interface cable is connected to the interface connector, the external loopback instruction signal 15a is turned on, and the AND circuit 121 suppresses the transmission signal 121 and the inverter circuit 124. Through the logical product circuit 122 and the logical sum circuit 123 to receive the received signal 126.
Pass to 1b. As a result, the transmission signal 121 is output to the loop connector 16 through the transmission driver 13a and is looped back to the reception driver 13b by the loop connector 16.
The folded signal is applied to the reception driver 13b and the AND circuit 1
22 and the OR circuit 123 to connect to the receiving circuit 11b. As a result, the transmission circuit and the reception circuit are looped back including the transmission driver and the reception driver through the loop connector connected to the interface connector of the line board 1 of the information processing apparatus, and the external loopback self-diagnosis becomes possible. If an interface cable is connected instead of the loop connector, the line will be connected to another device.

【0006】[0006]

【発明が解決しようとする課題】近年、マルチメディア
通信が進み、光通信技術により大容量のデータ転送が容
易に実現できるようになり、情報処理装置が扱うデータ
量が大変増加している。一方、マルチベンダ化が進んで
市場競争が厳しくなり、低価格化が必須になっている。
このため、高い信頼度の確保と共に、コストパフォーマ
ンスの向上が大きな課題となっている。
In recent years, multimedia communication has progressed, and it has become possible to easily realize large-capacity data transfer by optical communication technology, and the amount of data handled by an information processing apparatus has greatly increased. On the other hand, as multi-vendors have advanced and market competition has become more severe, lower prices have become essential.
For this reason, ensuring high reliability and improving cost performance are major issues.

【0007】上記従来技術の図3の自己診断方式は、送
信ドライバ及び受信ドライバを除いた内部の折り返し診
断方式で有った。これは、送信ドライバ及び受信ドライ
バと他装置の間で電気的インタフェース仕様が定めら
れ、1:1接続が基本であるため、必然的にこの方式な
る。このため、上記内部折り返し自己診断方式では送信
ドライバ及び受信ドライバの診断ができない。
The prior art self-diagnosis method of FIG. 3 is an internal return diagnosis method excluding the transmission driver and the reception driver. This is inevitably the system because the electrical interface specifications are defined between the transmission driver and the reception driver and other devices, and 1: 1 connection is the basis. Therefore, the internal loopback self-diagnosis method cannot diagnose the transmission driver and the reception driver.

【0008】また、図4の自己診断方式は、送信ドライ
バ及び受信ドライバの診断まで可能であるが、外部ルー
プ用にループコネクタ又はループケーブルが必要とな
る。これは、光インタフェースになると光ファイバのル
ープケーブルが必要になるため原価が高くなる。また、
装置に収容するポート数が多くなるとループケーブルを
試験しようとするポートに接続変えするか、多くのルー
プケーブルを用意する必要が有り、診断時間が長くな
る、工数が多く掛かる及び原価が高くなることについて
考えられていなかった。
Further, the self-diagnosis system of FIG. 4 is capable of diagnosing the transmission driver and the reception driver, but requires a loop connector or a loop cable for an external loop. This is costly because an optical interface requires an optical fiber loop cable. Also,
If the number of ports accommodated in the device is large, it is necessary to change the loop cable to the port to be tested or prepare many loop cables, resulting in a long diagnosis time, a lot of man-hours and a high cost. Was not thinking about.

【0009】本発明の目的は、ループコネクタやループ
ケーブルを使わずに他装置との障害切り分けの境界とな
る情報処理装置等の出口まで容易にかつ確実に確認を可
能にする自己診断方式を提供することにある。
An object of the present invention is to provide a self-diagnosis method that enables easy and reliable confirmation of the exit of an information processing device or the like, which is the boundary for fault isolation from other devices, without using a loop connector or loop cable. To do.

【0010】[0010]

【課題を解決するための手段】前記目的を達成するため
に、本発明では発光回路と受光回路が一体化され、発光
素子と受光素子を含めた自ポート折り返し機能を容易に
構成可能な特性を活かした自ポート折り返し機能を持つ
光モジュールを実装し、この光モジュールの折り返し機
能を用いて送信機能と受信機能の折り返し確認を可能に
することで、装置外部に診断用の光折り返しケーブル等
を接続することなく、他装置との障害切り分けの境界と
なる情報処理装置等の出口まで確認を可能にする自己診
断方式とした。
To achieve the above object, in the present invention, a light emitting circuit and a light receiving circuit are integrated, and a characteristic that the self-port folding function including the light emitting element and the light receiving element can be easily configured. By mounting an optical module with its own port loopback function and using the loopback function of this optical module to check the loopback of the transmission and reception functions, an optical loopback cable for diagnostics can be connected to the outside of the device. Without doing so, a self-diagnosis method that enables confirmation up to the exit of the information processing device or the like, which becomes the boundary for fault isolation from other devices.

【0011】[0011]

【作用】発光回路から出た光信号が光インタフェースケ
ーブル側と受光回路の両方に接続される光モジュール構
成にし、光インタフェースケーブルが接続されていない
時は、発光信号が受光側へスイッチされ、内部折り返し
する。また、光インタフェースケーブルが接続されると
発光信号が光インタフェースケーブル側へスイッチされ
る。この光モジュールの折り返し機能を用いて送信機能
と受信機能の折り返し確認を可能にすることで、装置外
部に診断用の光折り返しケーブル等を接続することなく
発光素子と受光素子を含んで折り返しが可能になる。ま
た、ポート単位に設ける光モジュールに内部折り返し機
能があるため、ポート数が増えても同時に自己診断が可
能になることを特徴としている。これにより、装置単体
での高い信頼性の確保が容易にかつ確実に可能になり、
コストパフォーマンスの優れた自己診断方式を実現する
ことができる。
[Function] An optical module configuration in which the optical signal emitted from the light emitting circuit is connected to both the optical interface cable side and the light receiving circuit, and when the optical interface cable is not connected, the light emitting signal is switched to the light receiving side, Turn back. When the optical interface cable is connected, the light emission signal is switched to the optical interface cable side. By using the folding function of this optical module to check the folding of the transmitting function and the receiving function, it is possible to fold back including the light emitting element and the light receiving element without connecting a diagnostic optical folding cable to the outside of the device. become. In addition, since the optical module provided for each port has an internal folding function, it is possible to simultaneously perform self-diagnosis even if the number of ports increases. As a result, it is possible to easily and reliably ensure high reliability of the device itself,
A self-diagnosis method with excellent cost performance can be realized.

【0012】本発明を実現するための光モジュールとし
ては、特公昭56−2922号公報記載のプリズムや特
公昭55−30602号公報記載の光分波器のような公
知の技術、あるいは現状の光通信技術の進歩から今後実
現が予想される光モジュールをもちいることができる。
As an optical module for realizing the present invention, a known technique such as a prism described in Japanese Patent Publication No. 56-2922 or an optical demultiplexer described in Japanese Patent Publication No. 55-30602, or an existing optical module is used. It is possible to use optical modules that are expected to be realized in the future due to advances in communication technology.

【0013】[0013]

【実施例】以下、本発明の一実施例を図面を参照して具
体的に説明する。図1は本発明の一実施例に係る自己診
断方式の内部折り返し解除状態構成図、図2は本発明の
一実施例に係る自己診断方式の内部折り返し状態構成図
である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a configuration diagram of an internal folding-back state of a self-diagnosis system according to an embodiment of the present invention, and FIG. 2 is a configuration diagram of an internal folding-back state of a self-diagnosis system according to an embodiment of the present invention.

【0014】図1及び図2において、1は回線ボード、
2a、2cは送信回路、2b、2dは受信回路、2a
1、2c1は電気送信信号、2b1、2d1は電気受信
信号、3a、3bは光モジュール、4a、4cは発光回
路、4b、4dは受光回路、5a、5cは発光接続端
子、5b、5dは受光接続端子、6a、6bはループ用
光ファイバ、7a、7b、7c、7dは光反射鏡、8
a、8b、8c、8dは光インタフェースケーブル、9
a、9cは光送信信号、9b、9dは光受信信号であ
る。回線ボード1は、光インタフェース回線を2ポート
実装した例を示す。
In FIGS. 1 and 2, 1 is a line board,
2a and 2c are transmitting circuits, 2b and 2d are receiving circuits, and 2a.
1, 2c1 are electric transmission signals, 2b1, 2d1 are electric reception signals, 3a, 3b are optical modules, 4a, 4c are light emitting circuits, 4b, 4d are light receiving circuits, 5a, 5c are light emitting connection terminals, 5b, 5d are light receiving circuits. Connection terminals, 6a, 6b are optical fibers for loops, 7a, 7b, 7c, 7d are light reflecting mirrors, 8
a, 8b, 8c, 8d are optical interface cables, 9
Reference numerals a and 9c are optical transmission signals, and reference numerals 9b and 9d are optical reception signals. The line board 1 shows an example in which two ports of optical interface lines are mounted.

【0015】光モジュール3a、3bは、送信回路2
a、2cからの電気送信信号2a1、2c1を光送信信
号9a、9cに変換する発光回路4a、4cと、光受信
信号9b、9dを電気受信信号2b1、2d1に変換す
る受光回路4b、4dと、発光回路4a、4cから出た
光送信信号9a、9cを受光回路4b、4dに通すため
のループ用ファイバ6a、6bと、光反射鏡7a、7
b、7c、7dから成る。
The optical modules 3a and 3b include the transmission circuit 2
light emitting circuits 4a and 4c for converting the electrical transmission signals 2a1, 2c1 from a and 2c into optical transmission signals 9a and 9c, and light receiving circuits 4b and 4d for converting the optical reception signals 9b and 9d into electrical reception signals 2b1, 2d1. , Loop fibers 6a and 6b for passing the optical transmission signals 9a and 9c emitted from the light emitting circuits 4a and 4c to the light receiving circuits 4b and 4d, and the light reflecting mirrors 7a and 7
b, 7c, 7d.

【0016】図1の状態は、インタフェースケーブル8
a、8b、8c、8dが光モジュール3a、3bに接続
され、回線ボード1のポートが他装置に接続されている
状態を示す。以下、1ポート分の動作を例に送信及び受
信動作を説明する。
In the state shown in FIG. 1, the interface cable 8 is used.
It shows a state in which a, 8b, 8c and 8d are connected to the optical modules 3a and 3b, and the port of the line board 1 is connected to another device. The transmission and reception operations will be described below by taking the operation for one port as an example.

【0017】送信動作は、送信回路2aから出力された
電気送信信号2a1を発光回路4aで電気信号から光送
信信号9aに変換し、発光接続端子5a、光インタフェ
ースケーブル8aを通して他装置へ送信する。
In the transmission operation, the electric transmission signal 2a1 output from the transmission circuit 2a is converted from the electric signal into the optical transmission signal 9a by the light emitting circuit 4a and transmitted to another device through the light emission connection terminal 5a and the optical interface cable 8a.

【0018】受信動作は、光インタフェースケーブル8
bを通して送られてきた光受信信号9bを受光接続端子
5bを通して受光回路4bで光信号から電気受信信号2
b1に変換し、受信回路2bに受信する。
The receiving operation is performed by the optical interface cable 8
The optical reception signal 9b sent from the optical reception signal 9b is transmitted from the optical signal to the electric reception signal 2 through the light reception connection terminal 5b.
It is converted into b1 and received by the receiving circuit 2b.

【0019】図2の状態は、光モジュール3a、3bに
インタフェースケーブルが未接続で発光回路4a、4c
から出力した光送信信号9a、9cが光モジュール3
a、3bの内部で受光回路4b、4dに折り返している
状態を示す。
In the state shown in FIG. 2, the light emitting circuits 4a and 4c are not connected to the optical modules 3a and 3b and the interface cables are not connected.
The optical transmission signals 9a and 9c output from the optical module 3
The state of being folded back to the light receiving circuits 4b and 4d inside a and 3b is shown.

【0020】以下、1ポート分の動作を例に折り返し動
作を説明する。インタフェースケーブルが接続されてい
ない状態では、光反射鏡7a、7bは図2に図示するよ
うに発光回路4aから出力した光送信信号9aがループ
用光ファイバ6aを通して受光回路4bに入る角度に開
く。送信回路2aから出力した電気送信信号2a1は、
発光回路4aで電気信号から光信号に変換する。変換さ
れた光送信信号9aは、光反射鏡7aで反射され、ルー
プ用光ファイバ6aを通して、光反射鏡7bで再び反射
され受光回路4bに送られる。受光回路4bでは光信号
を電気受信信号2b1に変換し、受信回路2bに送る。
こうして光モジュール内で折り返し動作を行う。
The folding operation will be described below by taking the operation for one port as an example. When the interface cable is not connected, the light reflecting mirrors 7a and 7b open to an angle at which the optical transmission signal 9a output from the light emitting circuit 4a enters the light receiving circuit 4b through the loop optical fiber 6a as shown in FIG. The electric transmission signal 2a1 output from the transmission circuit 2a is
The light emitting circuit 4a converts an electric signal into an optical signal. The converted optical transmission signal 9a is reflected by the light reflecting mirror 7a, is reflected again by the light reflecting mirror 7b through the loop optical fiber 6a, and is sent to the light receiving circuit 4b. The light receiving circuit 4b converts the optical signal into an electric reception signal 2b1 and sends it to the reception circuit 2b.
In this way, the folding operation is performed in the optical module.

【0021】以上で説明した通り、本発明によれば次の
特徴が有る。
As described above, the present invention has the following features.

【0022】(1)光インタフェースケーブルを接続し
ないポートは、光モジュール内部で自動的に自ポート折
り返し状態に成る。
(1) The port to which the optical interface cable is not connected is automatically turned back inside the optical module.

【0023】(2)従来技術の外部折り返しのようにイ
ンタフェースコネクタにループ用のコネクタやケーブル
を接続すること無く送信回路と受信回路を折り返すこと
ができる。
(2) The transmitting circuit and the receiving circuit can be folded back without connecting a loop connector or a cable to the interface connector as in the conventional external folding.

【0024】(3)従来技術の内部折り返しでは、送信
ドライバや受信ドライバの確認ができなかったが、本発
明によれば発光素子、受光素子まで含めて確認ができ
る。
(3) Although the transmission driver and the reception driver cannot be confirmed by the internal folding of the prior art, according to the present invention, it is possible to confirm the light emitting element and the light receiving element.

【0025】本実施例では、光をループさせるのに光反
射鏡を用いた例を示したが、本発明を実現するための光
モジュールは、例えば特公昭56−2922号公報記載
のプリズムや特公昭55−30602号公報記載の光分
波器のような公知の技術、さらには現状の光通信技術の
進歩から今後実現が予想される光モジュールでもよいこ
とはいうまでもない。
In this embodiment, an example in which a light reflecting mirror is used to loop the light is shown, but an optical module for realizing the present invention is, for example, a prism or a special light disclosed in Japanese Patent Publication No. 56-2922. It goes without saying that a publicly known technique such as the optical demultiplexer described in JP-B-55-30602, or an optical module which is expected to be realized in the future due to the progress of the present optical communication technique may be used.

【0026】[0026]

【発明の効果】以上説明したように、本発明によれば、
発光素子及び受光素子を含めて内部折り返しが可能な光
モジュールを採用することで、装置外部にループケーブ
ルを接続することなく発光素子及び受光素子まで含めて
確認ができる。これにより、装置単体での高い信頼性の
確保が容易にかつ確実にできると共にコストパフォーマ
ンスの優れた自己診断方式を実現することができる。
As described above, according to the present invention,
By adopting an optical module that can be internally folded including the light emitting element and the light receiving element, the light emitting element and the light receiving element can be checked without connecting a loop cable to the outside of the device. As a result, it is possible to easily and surely secure high reliability of the device alone, and it is possible to realize a self-diagnosis method having excellent cost performance.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の内部折り返し解除状態構成
図。
FIG. 1 is a configuration diagram of an internal folding back release state according to an embodiment of the present invention.

【図2】本発明の一実施例の内部折り返し状態構成図。FIG. 2 is a configuration diagram of an internal folded state according to an embodiment of the present invention.

【図3】従来技術の内部折り返しの自己診断構成図。FIG. 3 is a self-diagnosis configuration diagram of internal folding according to the related art.

【図4】従来技術の外部折り返しの自己診断構成図。FIG. 4 is a configuration diagram of a self-diagnosis of external folding according to the related art.

【符号の説明】 1,10…回線ボード 2a,2c,11a,11c…
送信回路 2b,2d,11b,11d…受信回路 2a1,2c
1…電気送信信号 2b1,2d1…電気受信信号 3a,3b…光モジュ
ール 4a,4c…発光回路 4b,4d…受光回路 5a,
5c…発光接続端子 5b,5d…受光接続端子 6a,6b…ループ用光フ
ァイバ 7a,7b,7c,7d…光反射鏡 8a,8b,8c,8d…光インタフェースケーブル 9a,9c…光送信信号 9b,9d…光受信信号 12a,12b…内部ループ回路 121,122…論
理積回路 123…論理和回路 124…インバータ回路 13a,13c…送信ドライバ 13b,13d…受信
ドライバ 14a,14b…インタフェースコネクタ 15a,15b…外部折り返し指示信号 16…ループコネクタ 17…インタフェースケーブル
[Explanation of Codes] 1, 10 ... Circuit boards 2a, 2c, 11a, 11c ...
Transmitting circuits 2b, 2d, 11b, 11d ... Receiving circuits 2a1, 2c
1 ... Electric transmission signal 2b1, 2d1 ... Electric reception signal 3a, 3b ... Optical module 4a, 4c ... Light emitting circuit 4b, 4d ... Light receiving circuit 5a,
5c ... Light emitting connection terminal 5b, 5d ... Light receiving connection terminal 6a, 6b ... Loop optical fiber 7a, 7b, 7c, 7d ... Optical reflecting mirror 8a, 8b, 8c, 8d ... Optical interface cable 9a, 9c ... Optical transmission signal 9b , 9d ... Optical reception signal 12a, 12b ... Inner loop circuit 121, 122 ... AND circuit 123 ... Logical sum circuit 124 ... Inverter circuit 13a, 13c ... Transmission driver 13b, 13d ... Reception driver 14a, 14b ... Interface connector 15a, 15b … External loopback instruction signal 16… Loop connector 17… Interface cable

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】光インタフェースを介してデータ通信を行
う情報処理装置において、他装置と接続する光インタフ
ェースケーブル接続口の直前で自ポートの発光素子と受
光素子の確認を含めた折り返し機能を有する光モジュー
ル(電気信号を光信号に、光信号を電気信号に変換する
機能と他装置と光ケーブルで接続するコネクタ部を有す
る素子)を実装し、前記光モジュールの折り返し機能を
用いて送信機能と受信機能の折り返し確認を可能にする
ことで、装置外部に診断用の光折り返しケーブル等を接
続することなく、該光モジュールの発光素子及び受光素
子まで含めた他装置と接続する光インタフェースケーブ
ル接続口の直前まで確認を可能にした情報処理装置の自
己診断方式。
1. An information processing apparatus for performing data communication via an optical interface, which has an optical return function including confirmation of a light emitting element and a light receiving element of its own port immediately before an optical interface cable connection port to be connected to another apparatus. A module (an element having a function of converting an electric signal into an optical signal and a function of converting an optical signal into an electric signal and a connector portion which is connected to another device with an optical cable) is mounted, and a folding function of the optical module is used to perform a transmitting function and a receiving function. By making it possible to check the return of the optical module, immediately before the optical interface cable connection port for connecting to another device including the light emitting element and the light receiving element of the optical module without connecting the optical folding cable for diagnosis to the outside of the apparatus. A self-diagnosis method for information processing equipment that enables confirmation up to this point.
JP7049437A 1995-03-09 1995-03-09 Self diagnostic system for information processor Pending JPH08249202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7049437A JPH08249202A (en) 1995-03-09 1995-03-09 Self diagnostic system for information processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7049437A JPH08249202A (en) 1995-03-09 1995-03-09 Self diagnostic system for information processor

Publications (1)

Publication Number Publication Date
JPH08249202A true JPH08249202A (en) 1996-09-27

Family

ID=12831093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7049437A Pending JPH08249202A (en) 1995-03-09 1995-03-09 Self diagnostic system for information processor

Country Status (1)

Country Link
JP (1) JPH08249202A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012127692A1 (en) * 2011-03-24 2012-09-27 富士通株式会社 Information processing device, transmission device, and information processing device control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012127692A1 (en) * 2011-03-24 2012-09-27 富士通株式会社 Information processing device, transmission device, and information processing device control method

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