KR920007490B1 - Universial signal transceiving circuit - Google Patents

Abstract

The method is for servicing transmission and reception of R2 multi- frequency compelled signal, dual tone multi-frequency signal, continuity test signal and audible signal tone using one universal signal tranceiver board assembly. The method includes the steps: (A) resetting the system; (B) initializing the system; (C) sending identity and initial operating state to a local service processors (1,2) and clearing execution flags; and (D) checking the state change of execution flags and mode message transmitted from the local service processors to execute the mode service selected by the local service processor.

Description

Signal service method of general-purpose signal transceiver circuit pack for electronic exchange

1 is a block diagram showing the configuration of the present invention.

2 is a flowchart showing a state of performing initialization and service operation mode selection of the present invention.

3 is a flowchart showing a state of performing a beep transmission and reception mode service of the present invention.

4 is a flowchart showing a state of transmitting and receiving a DTMF signal of the present invention.

5 is a flowchart showing a state in which transmission and reception of an R2 MFC signal and a continuity test tone of the present invention are performed.

6 is a flowchart showing a state in which an audible signal transmission of the present invention is performed.

7 is a flowchart showing a state of performing a standby mode service of the present invention.

The present invention provides a signal service device for an electronic switch, comprising: an electronic switch for transmitting and receiving functions such as an R2 MFC (Multi-Frequency Compelled) signal, a DTMF signal (Dual Tone Multi-Frequency) signal, a continuity test tone, and an audible tone. The present invention relates to a signal service method of a general-purpose signal transmission / reception circuit pack.

Conventionally, a signal service device is composed of circuit circuits each of which performs R2 MFC signal transmission / reception, DTMF signal transmission, audible signal transmission, and continuity test tone transmission / reception, which are used for call processing in an electronic exchange. In addition, they were provided to the subscriber line or the relay line via the switch network. However, according to the conventional method as described above, the control method of the signal service apparatus is configured in its own form and is complicated according to the type of circuit, the location of multiplexing service, and the type of service provided for each type of signal service. As the service devices are distributed and implemented in various types of circuit packs, the area occupied by the signal service devices in the electronic exchange is increased, reliability is lowered, and maintenance and operation are difficult.

Accordingly, the present invention provides a signal service method of a general-purpose signal transmission / reception circuit pack for processing services of transmission and reception functions for an R2 MFC signal, a DTMF signal, a continuity test sound, and an audible signal to one universal signal transmission / reception circuit pack. For that purpose.

The present invention will be described in detail with reference to the accompanying drawings as follows.

1 is a block diagram of a universal signal transmission / reception circuit pack (Universal Signal Transceiver Board Assembly), and is a processor for controlling various functions of a signal service device including a general-purpose signal transmission / reception circuit pack. 3) TD-bus interface block (3) connected to two Telephony Device-bus (TD-bus) to select any one of them to communicate with either LSP (1) or (2) And a control block (4) for reading various information received from the LSPs (1) and (2) from the TD-bus interface block (3) to control all signal service functions in the general-purpose signal transmission / reception circuit pack, and a control block. In accordance with the signal information received from (4), the transmission unit 6 which transmits the specified pulse coded modulation (PCM) signal data for each channel to the sub-high way (SHW) interface block 5 and the control of the control block 4 Number of signals according to the signal service function By selecting the function mode corresponding to R2 MFC signal with new function, DTMF signal and continuity test sound, and receiving and detecting serial data of PCMized signal information input from time division switch 7 through SHW interface block 5 The receiver 8, which transmits to the control block 4, the time division switch 7 and a plurality of SHWs for data transmission and reception, are connected to select a corresponding SHW among the various SHWs under the control of the control block 4, The signal data from 6) is transmitted to the time division switch 7, the signal data input from the time division switch 7 is sent to the receiver 8, and the PCM data transmitted for each channel from the transmitter 6 is received by the receiver 8. It consists of SHW interface blocks (5) that loop-back.

2 shows the initialization and service operation mode selection functions. The general-purpose signal transmission / reception circuit pack (hereinafter referred to as a board) may be obtained by turning the power ON or resetting by manual reset or control of the LSPs 1 and 2. The operation is started (step 10). Initiating the operation of the board, initiating the operation of all functions and circuits (step 11), and then reading the board's own identity and initial operating state (step 12).

The read result is notified to the LSP (1) and (2) using the common I / O (Input / Output) wrap area of the TD-bus interface block (3), and the run flag is cleared. (Clear) (step 13). Next, the state change of the execution flag is checked (step 14). When the state of the execution flag changes, the service mode designation message sent from the LSP (1) and (2) is read through the common I / O RAM (step 15). In step 16, the content of the service mode designation message is one of a beep transmission / reception mode service, an audible signal transmission mode service, and a standby mode service.

In this case, when the signal transmission / reception mode service is designated, the corresponding SHW and channel group in the SHW interface block 5 are selected as shown in FIG. 3 (step 17), and the operation state in the board is read to the common I / O RAM. Inform the LSP (1) and (2) while writing, and clear the execution flag (step 18).

If the status of the execution flag is changed again (step 19), if the status of the execution flag is changed, read the confirmation message of normal board operation status sent from LSP (1) and (2) after checking through common I / O RAM. (Step 20), if it is determined that the received message is abnormal, perform the operation for the beep transmission / reception mode service from the beginning again, and if it is determined to be normal, read the message sent from the LSP (1) and (2) to read the R2 MFC signal and DTMF signal. And which function mode of the continuity test tone is checked (step 21).

In the case of the DTMF signal function mode, as shown in FIG. 4, it is checked whether the DTMF signal reception function mode or the on-board signal transmission / reception loopback test is performed (step 22). The function mode is set to the first channel of step (8) (step 25), the DTMF signal digits detected from the receiving unit 8 are read and checked for new data (step 26). If the new data is received, the common I / O RAM is received. While writing to the area, notify the LSP (1) and (2) (step 27), and check whether the transmission area of the common I / O RAM to be read is the last channel (step 28). (Step 29), if not the last channel, performs the function while continuing to read the channel (step 30).

If it is not the new channel in step 26, check whether the transmission area of the common I / O RAM to be read is the last channel (step 31). If it is the last channel, perform the function from the first channel again (step 32). Starting from the next channel after the currently performed channel (step 33).

However, in the case of the loopback test in step 22, the loopback control circuit of the SHW interface block 5 is driven (step 23), and the corresponding DTMF signal digits are sent to the first channel of the transmitter 6 (step 24). From the step of setting the function mode to the first channel of the receiver 8 (step 25), the following process is the same as the case of the aforementioned beep transmission / reception mode service.

In the case of the R2 MFC signal and the continuity test tone function mode, as shown in FIG. 5, it is checked whether the signal transmission / reception function mode or the on-board transmission / reception loop back test is performed (step 34). While setting the function mode in the channel of the receiver 8 (step 36), the digit of the corresponding R2 MFC signal or continuity test tone is sent to the first channel of the transmitter 6 (step 37).

The R2 MFC signal or the digit of the continuity test sound detected by the receiving unit 8 is read to check whether it is new data (step 38), and if it is new data, the LSP (1) and (2) are written to the receiving area of the common I / O RAM. (Step 39), check whether the transmission area of the common I / O RAM to be read is the last channel (step 40), if the last channel is performed again from the first channel (step 41), and if not the last channel, Continue to read the next channel to perform the function (step 42).

If it is not the new digit in step 38, check whether the transmission area of the next common I / O RAM to be read is the last channel (step 43), and if it is the last channel, perform the first channel again (step 44). Starting from the next channel (step 45). However, in the case of the transmission / reception loopback test on the board in step 34, after driving the loopback control circuit of the SHW interface block 5 (step 35), setting the function mode on the first channel of the receiver 8 (step 36). The following process is the same as the case of the aforementioned beep transmission and reception mode service.

On the other hand, when the audible tone transmission mode service is selected in step 16, as shown in FIG. 6, both the corresponding SHW and available channels of the selected SHW are selected in the corresponding SHW interface block 5 (step 46). Reads the operation status on the board and writes to common I / O RAM to LSP (1) and (2), clears the execution flag of common I / O RAM (step 47), and checks the change status of execution flag. (Step 48).

After reading through the common I / O RAM, the message confirming whether the operation status of the board sent from the LSPs (1) and (2) is normal is checked (step 49). If the received message is determined to be abnormal, the audible tone function mode service is If it is determined that it is normal, it reads the message sent from the LSP (1) and (2), and sends out an audible tone according to the relevant control ratio group (step 50). When waiting for a change of flag and a change state of flag is generated, the message of common I / O RAM transmission area sent from LSP (1) and (2) is read, and an audible tone is sent according to the corresponding group (step 51). The same procedure is repeated while sending out an audible beep (step 52).

If it is selected as the standby mode service, as shown in FIG. 7, without selecting SHW, the operation status on the board is read, written to the common I / O RAM, notified to the LSP, and the execution flag is cleared (step 53). ), The change state of the execution flag is checked (step 54). After reading through the common I / O RAM the normal status confirmation message sent from the LSP (1) and (2) after checking (step 55), if the received message is determined to be abnormal, from the initial operation of the standby mode service If it is determined to be normal, read the message sent from the LSP (1) and (2) to check whether the operation mode service is changed (step 56), and if it is changed, whether it is the test mode or the beep transmission / reception mode service and the audible signal transmission mode. It checks which of the services is designated (step 57), and in the test mode, performs a test in a state of performing a loopback test (step 58).

Claims (6)

In the signaling service method of an electronic exchange, a step (10) of starting an operation by a reset, a step (11) of initializing all functions, an LSP (1) of its identity and an initial operation state are read and the result thereof is read. (2) and (2) to clear the execution flag (12, 13), and the message transmitted from the LSP (1), (2) while checking the state change of the execution flag is a beep transmission and reception mode service and audible signal transmission mode And checking each of a service and a standby mode service to perform a mode service designated by the message. The method according to claim 1, wherein when the message is designated as the beep transmission / reception mode service, the step (17) of selecting a SHW and a channel group, and notifying the LSPs (1) and (2) of the operating state of the board, Receiving a status check message to check the status of the execution flag and determine whether the operation state of the board is normal (18 to 20), and if it is determined to be abnormal, retry from the beginning, and if it is determined that the LSP (1) (2) checking which function mode of the R2 MFC signal, the DTMF signal, and the continuity test tone is performed, and performing a function mode designated by the message sent from the LSPs (1) and (2), respectively; 21) a signal service method of a general-purpose signal transceiver circuit pack for an electronic exchange. The method as claimed in claim 2, further comprising the step (22) of checking whether the message is a reception function or a loopback test if the message is selected as the function mode of the DTMF signal, and if the message is in the reception function mode, the first channel of the reception unit (8). When the mode is set, it is checked whether the received signal digit is new data, and if it is new data, it is notified to LSP (1) and (2), and should be read when it is not new data or notification of the LSP (1) and (2) is completed. Check whether the channel to be last is last, and if the last channel is performed again from the first channel, if not the last channel (26 to 33), and in the case of the loopback test, the SHW interface block 5 Driving the loopback control circuit and sending the corresponding DTMF signal digits to the first channel of the transmitter 6, and then setting the function mode to the first channel of the receiver 23, 24; Signal service method of a general-purpose signal transmission and reception circuit pack for an electronic exchange. The transmitter (6) according to claim 2, wherein if the message is selected as a beeper transmit / receive function mode when the R2 MFC and the continuity test tone are selected, a function mode is set in the first channel of the receiver (8) and the corresponding signal digit is transmitted to the transmitter (6). (36) and (37) to send to the first channel of < RTI ID = 0.0 >, < / RTI > driving a loopback control circuit if selected for the loopback test, and setting the function mode to the first channel of the receiver (8) in the case of the receive function mode. Check if the received signal digit is new data, and if it is new data, inform the LSP (1) and (2) .If the data is not new data or notification of the LSP (1) and (2) is completed, the channel to be read is the last. If it is the last channel, and if it is the last channel to perform again from the first channel and if not the last channel to perform the next channel (38 to 45) characterized in that it comprises Here exchange appointed general purpose signal transmission method of the signal circuit pack service. The LSP of claim 1, wherein when the message transmitted from the LSPs (1) and (2) is selected as the audible tone transmission mode service, the LSP is selected by selecting both a corresponding SHW and an available channel of the selected SHW. (1) and (2) to check (46, 47), and check the change status of the performance plug, check the normal status message of the operating status in the board, if it is abnormal to perform again from the beginning, if normal, LSP ( 1), (48) to read the message sent from (2) and repeat until the audible signal transmission operation according to the group of the control ratio is completed (48 to 52) of the universal signal transmission and reception circuit pack for an electronic exchange Signal service method. The method of claim 1, wherein when the message transmitted from the LSPs (1) and (2) is selected as the standby mode service, notifying the operating state to the LSPs (1) and (2) without selecting SHW ( 53), checking whether the operation status is normal or not and checking again if it is abnormal, and if it is normal, checking whether the contents of the message indicate whether the operation mode service is changed (54 to 56), and operation mode service. In step 57, it is checked whether the change of the test mode or the beep transmission / reception mode service and the audible transmission mode service is specified. In the test mode, the test is performed in the same manner as the loopback test. The signal service method of a universal signal transmission and reception circuit pack for an electronic exchange comprising a step (58).

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