JPH0248876U - - Google Patents
Info
- Publication number
- JPH0248876U JPH0248876U JP12870588U JP12870588U JPH0248876U JP H0248876 U JPH0248876 U JP H0248876U JP 12870588 U JP12870588 U JP 12870588U JP 12870588 U JP12870588 U JP 12870588U JP H0248876 U JPH0248876 U JP H0248876U
- Authority
- JP
- Japan
- Prior art keywords
- open collector
- signal transmission
- transistor
- signal
- transmission line
- 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
- 230000008054 signal transmission Effects 0.000 claims 4
- 238000001514 detection method Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
第1図は本考案によるオープンコレクタによる
伝送回路図。第2図は従来のオープンコレクタに
よる伝送回路図。
1……抵抗、2……トランジスタ、3……コネ
クタ、4……伝送ライン、5……コネクタ、6…
…負荷抵抗、7……増幅回路、8……電源母線、
9……トランジスタ、10……抵抗、11……コ
ネクタ、12……伝送ライン、13……コネクタ
、14……スイツチ回路、15……抵抗、16…
…電源母線、17……電圧計測回路。
FIG. 1 is a transmission circuit diagram using an open collector according to the present invention. Figure 2 is a transmission circuit diagram using a conventional open collector. 1...Resistor, 2...Transistor, 3...Connector, 4...Transmission line, 5...Connector, 6...
...Load resistance, 7...Amplification circuit, 8...Power supply bus,
9... Transistor, 10... Resistor, 11... Connector, 12... Transmission line, 13... Connector, 14... Switch circuit, 15... Resistor, 16...
...Power bus, 17...Voltage measurement circuit.
Claims (1)
スタを設けた信号伝送システムにおいてオープン
コレクタのトランジスタと並列に別のトランジス
タを追加接続し、並列に追加接続したトランジス
タの制御信号を前記信号伝送システムの受信側か
ら送信することによつてオープンコレクタ信号伝
送ラインの断線を検知するようにしたことを特徴
とするオープンコレクタ信号伝送ラインの断線検
出回路。 In a signal transmission system in which an open collector transistor is provided in the output stage of the transmitting side, another transistor is additionally connected in parallel with the open collector transistor, and a control signal of the additionally connected transistor is transmitted from the receiving side of the signal transmission system. 1. A disconnection detection circuit for an open collector signal transmission line, characterized in that a disconnection in the open collector signal transmission line is detected by transmitting a signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12870588U JPH0619099Y2 (en) | 1988-09-30 | 1988-09-30 | Open collector signal transmission line disconnection detection circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12870588U JPH0619099Y2 (en) | 1988-09-30 | 1988-09-30 | Open collector signal transmission line disconnection detection circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0248876U true JPH0248876U (en) | 1990-04-04 |
JPH0619099Y2 JPH0619099Y2 (en) | 1994-05-18 |
Family
ID=31382295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12870588U Expired - Lifetime JPH0619099Y2 (en) | 1988-09-30 | 1988-09-30 | Open collector signal transmission line disconnection detection circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0619099Y2 (en) |
-
1988
- 1988-09-30 JP JP12870588U patent/JPH0619099Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0619099Y2 (en) | 1994-05-18 |