JPS6246954U - - Google Patents
Info
- Publication number
- JPS6246954U JPS6246954U JP13009685U JP13009685U JPS6246954U JP S6246954 U JPS6246954 U JP S6246954U JP 13009685 U JP13009685 U JP 13009685U JP 13009685 U JP13009685 U JP 13009685U JP S6246954 U JPS6246954 U JP S6246954U
- Authority
- JP
- Japan
- Prior art keywords
- section
- status
- terminal
- status signal
- host computer
- 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.)
- Granted
Links
- 230000001052 transient effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案のターミナル機器切り換え器の
ステータス・トランジエント・メモリ部の具体的
な構成例の図、第２図は第１図のトランジエント
・メモリ部の動作を表わすタイムチヤート、第３
図はターミナル・ステータスＴＳＴが変化した場
合と変化しなかつた場合を分けて表わしたタイム
チヤート、第４図は本考案のターミナル機器切り
換え器を実際のシスタムに接続した際を示す図、
第５図は従来のターミナル機器切り換え器を表わ
す図である。
１……変化検出器、２……Ｄタイプ・フリツプ
・フロツプ回路、３……エクスクルーシブ・オア
回路、４……タイマ回路、５，６……アンド・ゲ
ート、７……オア・ゲート、Ｈ……ホスト計算機
、Ｓ，Ｓ……切り換え器、ｍ，ｍ１，〜，ｍ４…
…ステータス・トランジエント・メモリ部、ｔ１
，〜，ｔ４……ターミナル機器。
FIG. 1 is a diagram showing a specific configuration example of the status/transient memory section of the terminal equipment switching device of the present invention, FIG. 2 is a time chart showing the operation of the transient memory section of FIG. 1, and FIG.
The figure is a time chart showing cases in which the terminal status TST has changed and cases in which it has not changed. Figure 4 is a diagram showing when the terminal device switching device of the present invention is connected to an actual system.
FIG. 5 is a diagram showing a conventional terminal equipment switching device. 1... Change detector, 2... D type flip-flop circuit, 3... Exclusive OR circuit, 4... Timer circuit, 5, 6... AND gate, 7... OR gate, H... ...Host computer, S, S ...Switcher, m, m1 , ~, m4 ...
...Status transient memory section, t1
,~, t4 ...Terminal equipment.
Claims (1)
のターミナル機器を選択接続するターミナル切り
換え器において、各ターミナル機器の切り換え部
に、前記ターミナル機器からのステータス信号の
変化を検出するステータス信号変化検出部と、こ
のステータス信号変化分を記憶するラツチ部と、
前記ホスト計算機からセレクト信号が与えられた
際に前記ラツチ部に記憶されたステータス変化情
報をステータス信号ラインに割り込ませるセレク
ト・タイマ部を有するステータス・トランジエン
ト・メモリ部を設けたことを特徴とするターミナ
ル機器切り換え器。 In a terminal switching device that selectively connects a host computer to one of a plurality of terminal devices, a switching section of each terminal device includes a status signal change detection section that detects a change in a status signal from the terminal device; a latch section that stores changes in the status signal;
The present invention is characterized by comprising a status transient memory section having a select timer section that interrupts the status change information stored in the latch section into the status signal line when a select signal is applied from the host computer. Terminal equipment switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985130096U JPH0445066Y2 (en) | 1985-08-27 | 1985-08-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985130096U JPH0445066Y2 (en) | 1985-08-27 | 1985-08-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6246954U true JPS6246954U (en) | 1987-03-23 |
| JPH0445066Y2 JPH0445066Y2 (en) | 1992-10-23 |
Family
ID=31027267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985130096U Expired JPH0445066Y2 (en) | 1985-08-27 | 1985-08-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0445066Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5466734U (en) * | 1977-10-21 | 1979-05-11 |
-
1985
- 1985-08-27 JP JP1985130096U patent/JPH0445066Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5466734U (en) * | 1977-10-21 | 1979-05-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0445066Y2 (en) | 1992-10-23 |
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