KR20080076562A - Circuit apparatus for receiving user defined alarm signal in communication system - Google Patents

Circuit apparatus for receiving user defined alarm signal in communication system Download PDF

Info

Publication number
KR20080076562A
KR20080076562A KR1020070016665A KR20070016665A KR20080076562A KR 20080076562 A KR20080076562 A KR 20080076562A KR 1020070016665 A KR1020070016665 A KR 1020070016665A KR 20070016665 A KR20070016665 A KR 20070016665A KR 20080076562 A KR20080076562 A KR 20080076562A
Authority
KR
South Korea
Prior art keywords
alarm signal
signal
input
input port
alarm
Prior art date
Application number
KR1020070016665A
Other languages
Korean (ko)
Inventor
한광희
Original Assignee
삼성전자주식회사
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 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to KR1020070016665A priority Critical patent/KR20080076562A/en
Publication of KR20080076562A publication Critical patent/KR20080076562A/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

The present invention relates to a user-defined alarm signal receiving circuit device in a communication system, comprising: a resistor assembled or not assembled according to a notification signal receiving method, and three inputs for receiving an alarm signal from any device according to the alarm signal receiving method. A photocoupler operating according to a level of a signal input through a port, the input port and a resistor, and a pull-up for changing an output port to a high or low level signal depending on whether the photo coupler is operated or not; By designing a circuit that receives both user-defined alarm signals by supporting both high / low and open / short methods, including pull-up registers, Depending on the type of alarm signal used, alarm cards can be changed or duplicated.

Description

CIRCUIT APPARATUS FOR RECEIVING USER DEFINED ALARM SIGNAL IN COMMUNICATION SYSTEM}

1 illustrates a user-defined alarm signal receiving circuit using a high / low method according to the prior art;

2 is a diagram illustrating a user-defined alarm signal receiving circuit using an open / short scheme according to the prior art, and

3 shows a multi-user custom alarm signal receiving circuit arrangement in a communication system in accordance with the present invention.

The present invention relates to a circuit device for receiving a user-defined alarm signal in a communication system, and in particular, to support both a high / low method and an open / short method to receive a user-defined alarm signal. It relates to a circuit device.

In general, in a wireless communication system, any device or equipment may be installed at an installation site of a base station (or RAS (Radio Access Station)) according to the needs of operators. At this time, the base station should be able to receive a user-defined alarm signal generated from the arbitrary device. To this end, conventionally, any device directly transmits a high or low signal to the base station to indicate whether the notification signal is generated or to an alarm port where the device transmits the alarm signal. A method of informing whether an alarm signal is generated by opening or shorting two allocated signal lines is used.

Accordingly, the base station according to the related art selects a circuit capable of supporting any one of the high / low method and the open / short method to implement a circuit for receiving a user-defined alarm signal from the arbitrary device. have.

When the arbitrary device uses the high / low scheme, the alarm signal receiving circuit of the base station is configured as shown in FIG. 1, and the arbitrary signal is input through the input port 1 101 and the input port 2 103. Receive alarm signals from the device. In this case, when an alarm does not occur in any of the devices or equipment, a low signal of the same level is input to the input port 1 101 and the input port 2 103 so that the photo coupler 103 does not operate. The signal output to the output port 115 maintains a high level signal due to the pull-up resistor 113. On the other hand, when an alarm occurs in the arbitrary device, a high level signal is input to the input port 1 (101) compared to the signal input to the input port 2 (103) to operate the photo coupler (103). As a result, the current flowing through the pull-up resistor 113 flows to the photo TR 107 so that the high level signal output to the output port 115 is changed to the low level. Here, when the level of the signal output to the output port 115 becomes low, the base station can know that the alarm occurs in the arbitrary device.

When the arbitrary device uses the open / short scheme, the alarm signal receiving circuit of the base station is configured as shown in FIG. 2, and the arbitrary signal is input through the input port 1 201 and the input port 2 203. Receive alarm signals from the device. Herein, the input port 1 201 and the input port 2 203 are connected by a switch 205, and the input port 2 203 is connected to a digital ground. If an alarm does not occur in any device, the switch 205 is opened so that the input port 1 201 and the input port 2 203 are not connected. Accordingly, a high signal having the same level is input to the light emitting diode 209 so that the photo coupler 207 does not operate, so that the signal output to the output port 219 becomes high due to the influence of the pull-up resistor 217. The signal of the level is maintained. On the other hand, when an alarm occurs in the arbitrary device, the switch 205 is shorted to connect the input port 1 201 and the input port 2 203. Accordingly, signals of different levels are input to the light emitting diodes 209 so that the photo coupler 207 operates so that a current flowing through the pull-up resistor 217 flows to the photo TR 211 to the output port. The high level signal output to 219 is changed to the low level. This allows the base station to know that an alarm has occurred in the arbitrary device.

As described above, conventionally, the base station installs and uses a circuit supporting only one of the high / low method and the open / short method. Therefore, when the system is sold to a carrier that requires a method different from that supported by the circuit installed in the base station, it is inconvenient to change the alarm card provided with the circuit.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a user-defined alarm signal receiving circuit device in a communication system.

Another object of the present invention is to provide a circuit device for receiving a user-defined alarm signal by supporting both a high / low method and an open / short method in a communication system.

According to a first aspect of the present invention for achieving the above objects, the user-defined alarm signal receiving circuit device in the communication system is any resistance according to the alarm signal receiving method and the resistor assembled or not assembled according to the notification signal receiving method. Three input ports for receiving an alarm signal from a device, a photo coupler operating according to a level of a signal input through the input port and a resistor, and an output port high or high depending on whether the photo coupler is operated. And a pull-up resistor for changing to a low level signal.

According to a first aspect of the present invention for achieving the above object, a method of operating a circuit for receiving a user-defined alarm signal in a communication system, the process of assembling or not assembling the resistor according to the alarm signal receiving method, and Receiving an alarm signal from any device through two of the three input ports according to the alarm signal receiving method, and the photo coupler is operated in accordance with the resistance and the level of the signal input to the two input ports And changing the output port to a high or low level signal according to the operation of the photo coupler.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, a circuit device for receiving a user defined alarm signal by supporting both a high / low method and an open / short method in a communication system will be described.

3 shows a multi-user custom alarm signal receiving circuit arrangement in a communication system in accordance with the present invention.

Referring to FIG. 3, the alarm signal receiving circuit includes three input ports 301, 303, and 305, so that the input port 1 301 and the input port according to the alarm signal transmission method used in the arbitrary device. An alarm signal is received using the 2 303 or an alarm signal using the input port 2 303 and the input port 3 305. In other words, when the arbitrary device uses the high / low method, the input port 1 301 and the input port 2 303 are connected to the arbitrary device, and the arbitrary device uses the open / short method. In this case, the input port 2 303 and the input port 3 305 are connected to the arbitrary device. Herein, the input port 3 305 is connected to the digital ground and is connected or disconnected from the input port 2 303 according to whether or not an alarm occurs in the arbitrary device.

R1 307 is a resistor that can be assembled or not assembled to a card that implements an alarm circuit. R1 307 is not assembled when the arbitrary device operates in the high / low manner, but only when the open / short method operates. It is assembled and used. In this case, in the open / short mode, the R1 307 plays a role of inputting a high level signal to the light emitting diode 313.

R2 (309) is a resistor that connects between the input port 2 (303) and the light emitting diode (313) of the photo coupler 311, can be assembled or unassembled, but as a result of the test fixed resistance of 100 ohm (ohm) You may use it.

The photo coupler 311 includes a high output infrared light emitting diode 313 and a high sensitivity silicon photo TR 315. When the light generated from the light emitting diode 313 is transferred to the photo TR 315, the photo TR ( The circuit 315 is configured to be operable and its operation is determined according to signal levels input to both pins of the light emitting diode 313. That is, when signals of different levels are input to the light emitting diode 313, the light emitting diode 313 generates light and the photo TR 315 receives the generated light to operate. On the other hand, when a signal having the same level is input to the light emitting diode 313, the light emitting diode 313 does not generate light, so that the photo TR 315 also does not operate.

R3 317 is a pull-up resistor used to make the point a high signal when a certain point is normally floating. Here, the floating state represents a state in which the high signal and the low signal are not in the digital logic circuit. For example, when the pull-up resistor is connected, a push-pull switch is connected to one of the floating wires, and when the wire is pressed, the logic signal is a low signal. If the switch is not pressed, that is, the normal state is to connect the power supply (+) side and the lead using a resistor so that the lead becomes a high signal, the lead becomes a high signal. It becomes possible. The resistor used at this time is called a pull-up resistor. In particular, the present invention performs a function of applying a high or low signal to the output port 319 depending on whether the photo coupler 315 is operated.

The switch 321 connects or releases the input port 3 305 to the input port 2 303 which is shorted or opened depending on whether an alarm signal is generated and connected to the digital ground. In other words, when the alarm is generated, the switch 321 is shorted to connect the input port 3 305 and the input port 2 303. When the alarm is not generated, the switch 321 is opened. The connection between the input port 3 (305) and the input port 2 (303) is released.

In the following, the operation of the high / low method and the open / short method will be described. Here, R1 307 is not assembled.

First, when operating in the high / low manner, the input port 1 301 and the input port 2 303 are connected to the arbitrary device.

If an alarm does not occur in the arbitrary device, the random device transmits the same low level signal to the input port 1 301 and the input port 2 303. Accordingly, the low level signal is input to the light emitting diode 313 so that the light emitting diode 313 does not generate light and the photo TR 315 also does not operate. Therefore, the signal of the output port 319 is maintained by the pull-up resistor R3 (317) of the high level signal.

On the other hand, when an alarm is generated in the arbitrary device, the random device outputs a signal indicating a high value, that is, a signal higher than 0.7V, compared to the signal input to the input port 2 (303). Send to 1 (301). Accordingly, signals of different levels are input to the light emitting diodes 313, so that the light emitting diodes 313 generate light, and the photo TR 315 is operated by the generated light. Accordingly, the current flowing through the pull-up resistor R3 317 flows to the photo TR 315 so that the high level signal flowing to the output port 319 is changed to the low level, so that the base station generates an alarm in the arbitrary device. You can see what happened.

Next, when operating in the open / short mode, the input port 2 303 and the input port 3 305 are connected to the arbitrary device.

If an alarm does not occur in any device or device, the switch 321 is opened so that the input port 2 303 and the input port 3 305 are not connected. Accordingly, a high level signal input to the input port 2 303 is input to the light emitting diode 313, and a high level signal is input to the light emitting diode 313 by the R1 307. Since the light emitting diodes 313 receive high signals of the same level on both sides and do not generate light, the photo TR 315 does not operate. Accordingly, the output port 319 outputs a high level signal due to the influence of the pull-up resistor R3 317.

On the other hand, when an alarm occurs in any device or equipment, the switch 205 is shorted to connect the input port 2 303 and the input port 3 305. Accordingly, the high level signal input to the input port 2 303 is output to the digital ground connected to the input port 3 303 so that the low level signal is input to the light emitting diode 313. At this time, a high level signal is inputted to the light emitting diode 303 by the R1 307, so that the light emitting diode 303 receives signals of different levels on both sides to generate light, thereby causing the photo TR ( 315) is activated. As the photo TR 315 operates, a current flowing through the pull-up resistor R3 317 flows to the photo TR 315 such that a high level signal output from the output port 319 is changed to a low level. The base station may know that an alarm has occurred in any device or equipment.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention can be used in any apparatus by designing a circuit for receiving a user-defined alarm signal by supporting both a high / low scheme and an open / short scheme in a base station. According to the alarm signal method, it is possible to prevent the alarm card from being changed or duplicated.

Claims (11)

A user defined alarm signal receiving circuit device in a communication system, Resistors assembled or not assembled according to the alarm signal receiving method, Three input ports for receiving an alarm signal from any device according to the alarm signal receiving method, A photo coupler operating according to a level of a signal input through the input port and a resistor; And a pull-up resistor for changing an output port to a high or low level signal depending on whether the photo coupler is in operation. The method of claim 1, The resistor may be unassembled when the notification signal receiving method is a high / low method, and assembled when the method is an open / short method. The method of claim 1, The three input ports, characterized in that for receiving the alarm signal through the two input ports of the three input ports in accordance with the alarm signal receiving method. The method of claim 1, Two input ports of the three input ports are connected to the photo coupler, And the other input port is connected to the digital ground. The method of claim 4, wherein The other input port is When the alarm signal receiving method is open / short is connected to any device, characterized in that connected to or disconnected from the other input port connected to the arbitrary device depending on whether the alarm occurs. The method of claim 1, The photo coupler, And receiving signals from two input ports when the alarm signal receiving method is a high / low method, and receiving signals through one input port and a resistor when the method is an open / short method. In a method of operating a circuit for receiving a user-defined alarm signal in a communication system, The process of assembling or not assembling the resistor according to the alarm signal receiving method, Receiving an alarm signal from an arbitrary device through two of the three input ports according to the alarm signal receiving method; Operating a photo coupler according to the resistance and the level of the signal input to the two input ports; And changing an output port to a high or low level signal depending on whether the photo coupler is in operation. The method of claim 7, wherein The process of assembling or not assembling the resistor, And when the notification signal reception method is a high / low method, is not assembled, and is assembled when the method is an open / short method. The method of claim 7, wherein Two input ports of the three input ports are connected to the photo coupler and the other input port is connected to a digital ground. The method of claim 9, The other input port is When the alarm signal receiving method is open / short, it is connected to the arbitrary device, characterized in that connected to or disconnected from the other input port connected to the arbitrary device depending on whether the alarm occurs. The method of claim 7, wherein The photo coupler may receive a signal from two input ports when the alarm signal reception method is a high / low method, and a signal through one input port and a resistor when the method is an open / short method. How to.
KR1020070016665A 2007-02-16 2007-02-16 Circuit apparatus for receiving user defined alarm signal in communication system KR20080076562A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070016665A KR20080076562A (en) 2007-02-16 2007-02-16 Circuit apparatus for receiving user defined alarm signal in communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070016665A KR20080076562A (en) 2007-02-16 2007-02-16 Circuit apparatus for receiving user defined alarm signal in communication system

Publications (1)

Publication Number Publication Date
KR20080076562A true KR20080076562A (en) 2008-08-20

Family

ID=39879797

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070016665A KR20080076562A (en) 2007-02-16 2007-02-16 Circuit apparatus for receiving user defined alarm signal in communication system

Country Status (1)

Country Link
KR (1) KR20080076562A (en)

Similar Documents

Publication Publication Date Title
CN111800697B (en) Charging box, earphone system, charging control method and storage medium
CN104583791B (en) Interface circuit for test device
US20180239856A1 (en) Field-programmable gate array based emulation system and method therefor
RU2007139097A (en) CURRENT MODE CONNECTOR FOR HIGH-SPEED COMMUNICATION OUTSIDE THE IC
US9984033B2 (en) Systems and methods for biasing a bus
JP2004507834A (en) Recognition of device connection status in USB
KR20080076562A (en) Circuit apparatus for receiving user defined alarm signal in communication system
US8788898B2 (en) Remote testing system
TW201702622A (en) On-chip built-in test and operational qualification
US11030140B2 (en) Bus network terminator
US20160301372A1 (en) Configurable transceiver circuit architecture
KR20020064666A (en) Driver circuit and data communication device
JP2019505862A (en) Method and apparatus for adjusting USB power delivery signal
KR102320697B1 (en) communication system
JP2005513872A (en) Method and apparatus for bidirectional transmission of data
CN112737699A (en) Current splitter for a LIN bus system
CN109905248B (en) Ethernet power supply device
JP2015195487A (en) Electronic apparatus, connection confirmation device and connection confirmation method
US10615550B2 (en) Earphone recognition and connection methods and circuits and storage medium
KR102436271B1 (en) Relay apparatus for having diagnosis function of digital signal input circuit
KR20180134177A (en) Semiconductor Test System and Test Method
CN203554410U (en) 28V/open circuit discrete magnitude input preprocessing circuit
CN218213859U (en) TTL serial port definition automatic identification equipment
US11316339B2 (en) Electronic device configuration
CN111193501B (en) Control circuit and handheld electronic equipment

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination