KR0182643B1 - Uni global bus compatible apparatus - Google Patents

Abstract

The present invention relates to a uni-global bus compatible device that can be used interchangeably according to the communication method in the global bus-type communication circuit used in the electronic switch, the conventional global bus communication method of the electronic switch is RS 485 communication There is a communication circuit using a method, and there is a communication circuit using a DS 3662 bus drive type universe. In order to use these two methods, the respective circuits must be provided. The shortcomings can be improved by using a communication circuit using an RS 485 communication method and a communication circuit using a DS 3662 bus drive method according to the communication method.

Description

Uni-Global Bus Compatible Device

1 is a block diagram illustrating an embodiment of a global communication bus used in a conventional electronic switch.

2 is a block diagram for explaining an embodiment of an RS 485 global bus of the communication circuit according to FIG.

3 is a block diagram illustrating an embodiment of a uni-global bus using a DS 3662 bus drive of the communication circuit according to FIG.

4 is a block diagram for explaining an embodiment of a uni-global bus compatible apparatus used for an electro-electronic exchange according to the present invention, which is compatible with an RS 485 global bus circuit used for an electro-electronic exchange and a DS 3662 bus drive.

* Explanation of symbols for main parts of the drawings

100: bus signal transmission and reception unit 101: bus signal transmission control unit

102: bus signal receiver 103: data bus signal transmitter

104: clock bus signal transmitter 201: data bus signal transceiver

202: clock bus signal transmission and reception unit 300: reception signal selection control unit

301: transmission signal selection control unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a uni global bus compatible apparatus used for a full electronic switching system, and more particularly, to a communication circuit of a global bus system used for an all electronic switching system. It is about a uniglobal bus compatible device that can be used interchangeably.

In this regard, FIG. 1 is a block diagram for explaining an embodiment of a global communication bus used in a conventional electronic switch, in which a communication circuit block (A) is provided with two identical communication circuits (E, E ') and redundant. Communication circuits D1 and communication circuit blocks A in the communication circuit block A 'of the same configuration via the global buses 14, 15, 16, 17 and the connectors 10, 11, 12, 13, respectively. It communicates with the internal communication circuit D2.

At this time, the communication circuit block A is the main control device of the all-electronic exchange, and the communication circuit blocks A 'and A are the auxiliary control devices of the all-electronic exchange.

The communication circuits E and E 'are communication circuits respectively present in each of the redundant main control circuits belonging to the communication circuit block A, and each of the duplicated main control circuits is used for call processing and maintenance of the electronic switchboard. To provide a communication path with other control circuits to perform the function of, the communication circuit (D1, D2) is a communication circuit existing inside the auxiliary control circuit belonging to each communication circuit block (A, A '), In order to allow each auxiliary control circuit to perform an auxiliary control function such as subscriber circuit control of an all-electronic switch, a communication path with other control circuits is provided.

FIG. 2 is a block diagram for explaining an embodiment of the RS 485 global bus of the communication circuit E according to FIG. 1, wherein the bus signal transmission control unit 101 controls various transmission bus signals, and data from outside. Under the control of the bus signal receiving unit 102 and the bus signal transmitting control of the bus signal transmitting control unit 101, the data bus signal transmitting unit 103 and the clock bus signal transmitting unit 104 transmit data bus signals and various clock signals. Each transmission is performed, and includes a bus signal transmitter and receiver 100 for receiving data from the bus signal receiver 102.

Referring to the RS 485 global bus circuit of the communication circuit E configured as described above, first, the bus signal transmission and reception unit 100 receives various transmission bus signal control of the bus signal transmission control unit 101, and then the data bus signal transmission unit 103. ) And the clock bus signal transmitter 104 transmit data bus signals and various clock signals, respectively, and receive data from the bus signal receiver 102.

That is, the bus signal transmission control unit 101 receives the occupied pseudo signal 113 of the global bus and the global bus occupiable time signal 122 generated from the bus signal transmission / reception unit 100, and receives the bus signal transmission / reception unit. TXEN (Tx Enable), which is a control signal that can be transmitted to the data bus signal transmitter 103 so that the data bus signal 115 output from the 100 is output as the global bus signal 120 through the data bus signal transmitter 103. When the communication circuit operates as a clock master by performing a clock redundancy control function, various clock signals 116 output from the bus signal transmitting and receiving unit 100 are clock bus signal transmitting units 104. ) Outputs a clock mast signal 118 that controls the clock bus signal transmitter 104 to be output as a bus signal 119 through the "

Next, the bus signal receiver 102 receives the global bus signal 120 and the bus signal 119, that is, receives various bus signals on the global bus under the control of the RXEN (Rx Enable) signal to transmit the bus signal. As a block output to the receiver 100, the RXEN is always high by the power supply VCC so that reception is always possible.

Subsequently, the data bus signal transmitter 103 is a block for transmitting the data bus signal output from the bus signal transmitter and receiver 100 under the control of the TXEN signal 117 of the bus signal transmission controller 101 to the global bus. Here, the data bus signals are data and Assert signals.

In addition, the clock bus signal transmitter 104 receives a plurality of clock signals 116 output from the bus signal transmitter and receiver 100 under the control of the clock mast signal 118 under the redundancy control of the bus signal transmission controller 101. It is a block to transmit as (119).

At this time, the clock mast signal 118 is output high in the clock master communication circuit among the redundant communication circuits, and low in the slave communication circuit.

Here, the type of each signal is as follows.

114 signals: RXCLK, RXDATA, RXASSERT, RXFRAME

115 signals: TXDATA, TXASSERT

116 Signal: TXCLK, TXFRAME

117 Signal: TXEN (Tx Enable)

118 Signal: TXMAST (Tx Master)

119 Signal: CLK +, CLK-, FRAME +, FRAME-

120 Signals: DATA +, DATA-, ASSERT +, ASSERT-

122 Signal: Expire signal indicating when the frame on the bus receives the Assert and Clock signals and the magnetic circuit can occupy the bus.

3 is a block diagram illustrating an embodiment of a uni-global bus using a DS 3662 bus drive of the communication circuit E according to FIG. 1. First, the bus signal transmitting and receiving unit 100 and the bus signal transmitting control unit are described. The function of 101 is shown in FIG.

Next, the data bus signal transmission / reception unit 201 receives the data bus signal 115 transmitted from the bus signal transmission / reception unit 100 under the control of the TXEN signal 117 of the bus signal transmission control unit 101 to transmit to the global bus. The data bus signal loaded on the global bus is controlled by the RXEN signal 211 and transmitted to the bus signal transmitter / receiver 100.

The clock bus signal transmitter / receiver 202 is controlled by a clock mast signal 118 outputting various clock bus signals 116 transmitted from the bus signal transmitter / receiver 100 from the bus signal transmission controller 101. By transmitting to the bus, the clock bus loaded on the global bus is controlled by the control of the RXEN signal 211 and transmitted to the bus signal transmitting and receiving unit 100.

Here, the type of each signal is as follows.

210 signal: DATA, ASSERT, CLK, FRAME

211 Signal: RXEN goes low in the global bus configuration so that 212 and 213 signals on the global bus are always received.

212 Signal: DATA, ASSERT

213 Signal: CLK, FRAME

214 Signal: RXDATA, RXASSERT

215 Signal: RXCLK, RXFRAME

However, in this conventional technology, the global bus communication method of the electronic switchboard includes a communication circuit using an RS 485 communication method, and a communication circuit using a DS 3662 bus drive type universe. In order to use, each must have a corresponding circuit.

The present invention has been made to solve the above-mentioned drawbacks of the prior art, the global bus communication system of the electronic switchboard has a communication circuit using the RS 485 communication method, communication using a DS 3662 bus drive universe There is a method circuit, and the purpose of the present invention is to provide a uni-global bus compatible device that can be used to select any one communication method circuit according to the bus drive communication method by providing a circuit that enables compatibility between the two circuit methods.

Hereinafter, the present invention for achieving the object described in detail by the accompanying drawings as follows.

Referring to FIG. 4, FIG. 4 shows an embodiment of a uni-global bus compatible device used in an electro-electronic switch according to the present invention, which is compatible with an RS 485 global bus circuit used in an electro-electronic switch and a DS 3662 bus drive. As a block diagram for explaining, under the control of various transmission bus signals of the bus signal transmission control unit 101, the data bus signal transmission unit 103 and the clock bus signal transmission unit 104 transmit the data bus signal 115 and various clock signals ( Receiving the bus signal transmission and reception unit 100 for transmitting each of the 116, the occupied pseudo signal 113 of the global bus and the global bus occupiable timing signal 122 generated from the bus signal transmission and reception unit 100 The TXEN (Tx Enable) signal, which is a transmittable control signal, is output such that the data bus signal 115 output from the bus signal transmitter / receiver 100 is output as the global bus signal 120 through the data bus signal transmitter 103. When the communication circuit operates as a clock master by performing a clock redundancy control function, various clock signals 116 output from the bus signal transmitter / receiver 100 are clock bus signal transmitters 104. Bus signal transmission control unit 101 for outputting the clock mast signal 118 and the global bus signal 120 and the bus signal 119 to be output to the bus signal 119 through A bus signal receiver 102 for receiving various bus signals, a data bus signal transmitter 103 for transmitting the data bus signal 115 output from the bus signal transmitter / receiver 100 to the global bus, and various clock signals ( The TXEN signal of the bus signal transmission control unit 101 converts the clock bus signal transmission unit 104 that converts 116 into a bus signal 119 and transmits the data bus signal 115 that is transmitted from the bus signal transmission and reception unit 100. Controlled by 117 Clock bus signal 118 outputting data bus signal transmission / reception unit 201 to be transmitted to global bus and various clock bus signals 116 transmitted from bus signal transmission / reception unit 100 to bus signal transmission control unit 101. When the clock bus signal transmission / reception unit 202 and the PBEN signal 314 select an RS 485 global bus function to be selected under the control of the control bus, the bus signal receiver 102 When the received signal 114 is selected and transmitted to the bus signal transmitter / receiver unit 100 and the PBEN signal is optionally processed to select a universe function using the DS 3662 bus drive, the data bus signal transceiver unit 201 outputs the signal. A reception signal selection control unit 300 for selecting a signal 214 and a signal 215 output from the clock bus signal transmission / reception unit 202 and transmitting the signal 214 to the bus signal transmission / reception unit 100, a PBEN signal 314, TXEN signal ( 117 and the clock mast signal 118 to control each data bus signal transmitter 103, clock bus signal transmitter 104, data bus signal transceiver 201 and clock bus signal transceiver 202, respectively. When the control signals 310,311, 312,313 are output, and the PBEN signal 314 is optional for the RS 485 global bus function selection, transmission and reception of the data bus signal of the universe using the DS 3662 bus drive The transmission functions of the unit 201 and the clock bus signal transmission / reception unit 202 are stopped, and the data bus signal transmission unit 103 and the clock bus signal transmission unit 104 of the RS 485 global bus are made transmittable, and the PBEN signal is transmitted. If 314 has optionally handled the selection of the universe function using the DS 3662 bus drive, the data bus signal transmitter 103 and clock bus signal transmitter 104 may not transmit. And a transmission function of a data bus signal reception unit 201 and the clock bus signal reception unit 202 comprises a transmit signal selecting unit 301 that is possible.

The present invention made in this way is described in detail as follows.

Hereinafter, for the remaining blocks except for the reception signal selection unit 300 and the transmission signal selection unit 301 will be described above.

First, the reception signal selection unit 300 determines the reception method based on the PBEN signal 314 (P bus and B bus selection signals), and the PBEN signal 314 selects the global bus function of the RS 485 method. Option), the received signal selection controller 300 selects the signal 114 received from the bus signal receiver 102 and transmits the signal 114 to the bus signal transmitter / receiver 100. On the contrary, the PBEN signal is a DS 3662 bus drive. After the optional processing is performed to select a universe function using the received signal, the received signal selection controller 300 may output a signal 214 output from the data bus signal transceiver 201 and a signal 215 output from the clock bus signal transceiver 202. ) Is sent to the bus signal transmitter / receiver 100.

Next, the transmission signal selector 301 combines the PBEN signals 314 (P bus and B bus selection signals), the TXEN signal 117 (Tx Enable), and the clock mast signal 118 to each data bus signal transmitter 103. Each control signal 310, 311, 312, 313 for controlling the clock bus signal transmitter 104, the data bus signal transceiver 201, and the clock bus signal transceiver 202 is generated and output.

At this time, if the PBEN signal 314 has processed an option to select the 485 global bus function, the data bus signal transceiver 201 and the clock bus signal transceiver 202 of the universe using the DS 3662 bus drive are used. Transmission function is stopped, and the data bus signal transmitter 103 and the clock bus signal transmitter 104 of the RS 485 global bus are capable of transmission.

On the contrary, if the PBEN signal 314 has been optionally processed to select a universe function using the DS 3662 bus drive, the data bus signal transmitter 103 and the clock bus signal transmitter 104 stop the transmission function, and transmit and receive the data bus signal. The transmission functions of the unit 201 and the clock bus signal transmitting / receiving unit 202 output respective control signals 310, 311, 312 and 313, respectively.

In this case, the control signals 310 and 312 are controlled according to the control of the PBEN signal 314 and the TXEN signal 117, and the control signals 311 and 313 are controlled according to the control of the PBEN signal 314 and the clock mast signal 118. .

As described above, the present invention can be used interchangeably between the communication circuit using the RS 485 communication method and the communication circuit using the DS 3662 bus drive system of the global bus communication method of the electronic switchboard according to the communication method. In other words, instead of having each communication circuit implemented in the corresponding communication method as in the conventional method, it is possible to reduce the cost by enabling two bus communication methods to be compatible with one communication circuit.

Claims (1)

A bus which transmits the data bus signal 115 and the various clock signals 116 to the data bus signal transmitter 103 and the clock bus signal transmitter 104 under the control of various transmission bus signals by the bus signal transmission controller 101. A signal transmitting and receiving unit 100; Data received from the bus occupancy pseudo signal 113 of the global bus and the global bus occupancy possible time signal 122 generated from the bus signal transmitter / receiver 100 and output from the bus signal transmitter / receiver 100. The bus signal 115 outputs a TXEN signal, which is a transmittable control signal, to be output as the global bus signal 120 through the data bus signal transmitter 103, and performs a clock redundancy control function so that the communication circuit operates as a clock master. In this case, the clock mast signal 118 is outputted so that various clock signals 116 output from the bus signal transmitter / receiver 100 can be output as the bus signal 119 through the clock bus signal transmitter 104. A bus signal transmission control unit 101; A bus signal receiver 102 receiving the global bus signal 120 and the bus signal 119 and receiving various bus signals on the global bus; A data bus signal transmitter 103 for transmitting the data bus signal 115 output from the bus signal transmitter / receiver 100 to the global bus; A clock bus signal transmitter 104 for changing and transmitting various clock signals 116 into bus signals 119; Data bus signal transmission / reception unit 201 for controlling the data bus signal 115 transmitted from the bus signal transmission / reception unit 100 by the TXEN signal 117 of the bus signal transmission control unit 101 to transmit to the global bus. Wow; Clock bus signal transmission and reception for transmitting various clock bus signals 116 transmitted from the bus signal transmission and reception unit 100 to the global bus under the control of the clock mast signal 118 output from the bus signal transmission control unit 101. Unit 202; When the PBEN signal 314 is processed to select the global bus function of RS 485, the signal 114 received from the bus signal receiver 102 is selected and transmitted to the bus signal transmitter / receiver 100, When the PBEN signal is optionally processed to select a universe function using the DS 3662 bus drive, the signal 214 output from the data bus signal transceiver 201 and the signal output from the clock bus signal transceiver 202 ( A reception signal selection control unit 300 for selecting and transmitting 215 to the bus signal transmission / reception unit 100; The PBEN signal 314, the TXEN signal 117, and the clock mast signal 118 are combined to combine the data bus signal transmitter 103, the clock bus signal transmitter 104, the data bus signal transmitter and receiver 201, and the clock bus. After outputting the control signals 310, 311, 312 and 313 for controlling the signal transceiver 202 respectively, and processing the PBEN signal 314 to select the global bus function of the RS 485 method, the universe using the DS 3662 bus drive The transmission function of the data bus signal transceiver 201 and the clock bus signal transceiver 202 is stopped, and the data bus signal transmitter 103 and the clock bus signal transmitter 104 of the RS 485 global bus are stopped. The data bus signal transmitter 103 when the PBEN signal 314 has been optionally processed to select a universe function using a DS 3662 bus drive. And the transmission signal selection control unit 301 to stop the transmission function of the clock bus signal transmission unit 104 and to enable transmission functions of the data bus signal transmission / reception unit 201 and the clock bus signal transmission / reception unit 202. Uni-Global bus compatible device including a.