JPS5534586A - Trouble detecting system in two-ways data communication system - Google Patents
Trouble detecting system in two-ways data communication systemInfo
- Publication number
- JPS5534586A JPS5534586A JP10826278A JP10826278A JPS5534586A JP S5534586 A JPS5534586 A JP S5534586A JP 10826278 A JP10826278 A JP 10826278A JP 10826278 A JP10826278 A JP 10826278A JP S5534586 A JPS5534586 A JP S5534586A
- Authority
- JP
- Japan
- Prior art keywords
- center
- data
- polling
- devices
- circuit system
- 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
Links
Landscapes
- Dc Digital Transmission (AREA)
Abstract
PURPOSE: To be able to detect the status of troubles generated in a circuit system immediately by grasping it always bt means of polling from the center whether the power supply from the center has the legal voltage level in each part of the circuit system.
CONSTITUTION: Polling is always applied from center 1 to many terminal devices 7 trogether with TV signals and outputted inquiries and instructions are sent to the terminal devices as data signals. Each terminal device 7 with individual address code corresponds to the polling from center 1 and sends the necessary data to center 1 as an up-data signal. Main line amplifier 3, branch amplifier 4, branch equipment 5 and extension amplifier 6 are connected between center 1 and terminal devices 7 as the need arises and power is supplied from center 1 to these devices through main line 2 so as to operate the devices. Voltage supervisory equipment 8 equips the device, like terminal device 7, required for transmission/reception of up- and down- data. The center totalizes the up-data to analyize them and detects whether power source is legal or not at each position of the circuit system.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10826278A JPS5534586A (en) | 1978-09-04 | 1978-09-04 | Trouble detecting system in two-ways data communication system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10826278A JPS5534586A (en) | 1978-09-04 | 1978-09-04 | Trouble detecting system in two-ways data communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5534586A true JPS5534586A (en) | 1980-03-11 |
Family
ID=14480185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10826278A Pending JPS5534586A (en) | 1978-09-04 | 1978-09-04 | Trouble detecting system in two-ways data communication system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5534586A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59108120A (en) * | 1982-11-15 | 1984-06-22 | ゼネラル・エレクトリック・カンパニイ | Power source monitor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4997504A (en) * | 1972-12-15 | 1974-09-14 |
-
1978
- 1978-09-04 JP JP10826278A patent/JPS5534586A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4997504A (en) * | 1972-12-15 | 1974-09-14 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59108120A (en) * | 1982-11-15 | 1984-06-22 | ゼネラル・エレクトリック・カンパニイ | Power source monitor |
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