SU1584118A2 - Device for checking automatic telephone exchange - Google Patents

Abstract

The invention relates to telecommunications. The purpose of the invention is to provide an automated check of the conversational path circuit of the established connection and localization of the non-connection stage. The device contains programmer 1, AND 2 elements - 6, OR 7 element, indication block 8, called subscriber 9, receiver Zanto signal receiver 10, control block 11, caller simulator 12, key block 13, analyzer 14 calls, consisting of a receiver 15 calls and a selector 16 number of calls, sensor 17 malfunction, trigger 18, corrector-distributor 19, r-r 20 clock pulses, receiver 21 acoustic signals, receiver 22 conversational path, latch 23 states of the conversational path , analyzer 24 linear signals, translator 25 signal monitored Rakta, transformers 26, integrators 27, a fail-over transmitter 28 failures and a 29-drive translator-drive. In this device, telephone stations are checked by periodically sequential sequential sixteen-fold establishment and selection of each of the sixteen monitored connections. During the test cycle, a single establishment of sixteen consecutive connections is checked. 1 il.

Description

Signal Zanto, control unit 11, caller simulator 12, key block 13, call analyzer 14 consisting of receiver 15 calls and selector 16 number of calls, fault sensor 17, trigger 18, distributor 19, r-clock 20 pulses, receiver 21 acoustic signals, receiver 22 conversational path, latch 23 states of the conversational path, analyzer 24 linear signals, translator 25 signal

control path, and, transformers 26, | integrators 27, a bounce translator 28, and a bounce translator of 29 states. In this device, the verification of telephone exchanges is made by periodically alternating auxiliary sixteen-fold establishment and selection of each of the sixteen monitored connections. During the test cycle, a single establishment of sixteen consecutive connections is checked. 1 silt

The invention relates to power, communication, can be used in test equipment of the AB (thematic telephone exchange (PBX) and is an improvement of the device according to bus number 1218495.

The purpose of the invention is to provide an automated check of the circuit of the talk path of the established connection and the localization of the non-connection stage.

The drawing shows a structural electrical circuit of the proposed device.

The device for monitoring the PBX contains programmer 1, first 2, second 3, third 4, fourth 5 and fifth 6 elements AND element 7, display unit 8, simulated callers 9.1-E, receiver 10 of signal Zanto, block 11 controls, a caller simulator 12, a block of 13 keys, a call analyzer 14, including a call receiver 15 and a call number selector 16, a fault sensor 17, a trigger 18, a distributor 19, a clock generator 20, a receiver 21 acoustic signals cash, receiver 22 conversational truck, ta, latch 23 times a speech path, analyzer 24 linear signals, a transponder 25 of the control path signal, transformers 26.1-26.n integrators 27 ,. 1-27.P, a bounce translator 28 failures and a bounce translator of 24 states.

The device works as follows

Telephone stations are checked by periodically alternating sequential sixteen-fold establishment and selection of each

of the sixteen controlled compounds (CS). The period during which verification (the one-time establishment of sixteen consecutive connections) is called the verification cycle.

After power is turned on by the operator, subscriber numbers are recorded for controlled connections in the caller simulator 12. At the same time, for a more reliable operation, it is recommended that the manual switching button of the key block 13 be momentarily inserted for resetting the triggers of the call analyzer 14 and the latch 23 of the conversational path states (the Auto and RH buttons of the block 13 are intended to provide automatic diagnostics). and manual start of the block 11).

The test starts after switching on the Start button of the key block 13, which allows the programmer 1 to issue information necessary for checking the first monitored connection, by forming the corresponding binary: address and cycle code combinations and their order numbers in the position code (code 1 from 16). This information enters the control unit 11, the call receiver 15, and the transmitters 28 and 29.

The control unit 11 provides an electrical simulation of the caller's sequence of actions when establishing a connection by forming the appropriate commands and signals — a service request (to occupy the station), a dialing number, from, -

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connection before the station is busy checking each subsequent monitored connection.

In the call receiver 15, the arrival of a ringing signal to the called subscriber, operatively assigned to the controlled connection, is determined by dialing the corresponding subscriber number on the caller simulator 12 keyboard. The display unit 8 provides information on the test progress in the form of counting the serial numbers of the monitored connections and the corresponding cycles, the same information can be sent to a recording device (not shown). Fault drive accumulators 28 and states 29 indicate the address of the monitored connections and the corresponding cycles during the step-wise detection of the failures.

Subsequently, the programmer 1 switches when generating addresses and sequence numbers of subsequent controlled connections and cycles under the influence of signals generated by the corrector-distributor 19 together with the first 2, second 3 and third 4 elements I. Signals needed for the corrector-distributor 19 , are formed by the element OR 7 after the establishment of the failure-free operation of the monitored connection when the following information arrives at the fifth element AND 6: the presence, answer, subscriber to the incoming call, are formed th receiver 15 calls analyzer 14 calls; the absence of parallel receipt of calls to two or more subscribers (as detected by the call selector 16); fixing an auto answer (signal control of the spoken path) when the connection between the calling and called parties is established; the presence of a Zanto signal (also perceived by receiver 10) on the caller’s line after the callee picks.

As a result, the signal generated by the specified information at the output of the fifth element And 6 changes the signal at the output of the element OR 7. After this, the new signal, which appears at the output of the element OR 7, fills the outputs of the corrector- distributor 19. As a result, it is prohibited to issue information from the program

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torus 1, set to original | the state triggers of the receiver 15 of the calls and the latch 23 of the conversational path, as well as the control unit 11 and the malfunction sensor 17, after which the signals at the output of the fifth element AND 6 and the outputs of the element 7 and the corrector-distributor 19 change again, providing clock pulses of MALS to count the next monitored connection and cycle (after counting 16 connections). Control unit 11 is then restarted, and testing of the next connection to be established begins. At the same time, according to the commands received from control unit 11, the caller simulator 12 accordingly changes the state of the line loop, ensuring its closure during occupation, closure and opening during translation of digits of the subscriber number when it is dialed, disconnected or disconnected. The signal of the end of the cycle enters the programmer 1 through the fourth element And 5. The same signal permits the operation of the trigger 18, which controls the fault sensor 17.

The release command, initially generated by control unit 11, ensures that the next monitored connection is disconnected from the caller’s station before testing the next monitored connection, as well as setting the functional parts of the linear signal analyzer 24 to the state required to ensure step-by-step monitoring and zeroing of the memory of the drive translators 28 and 29 in the absence of failures in previous tested connections.

When the information on the analyzer outputs 24 of the linear signals connected to the corresponding inputs of the transmitter 28 of the failures is zeroed, there is no synchronization output on the synchronization output of the analyzer 24, driving the zero information on the memory banks of the translator of the storage 28, clearing them from false signals that occur when the power is turned on or due to surge voltages.

Subsequently, the control unit 11, under the action of the clock pulses TI2, generates a sequence of commands necessary for establishing a connection between subscribers and a phased control of the station being tested715

In the analyzer 24 linear signals rtocxynaioT the following commands generated by control unit 11: Reject and Occupy - to the sixth inputs, dialing commands in the form of information about the activation of the corresponding group Buttons of the simulator keyboard 12 (GpA or Grb) - to the seventh inputs, switch on the sensor faults ondn - to the fifth input.

On a job command that is valid for the entire time of connection establishment, including checking the spoken path, the loop of the calling subscriber simulator 12 is closed and the output from the analyzer 23 is allowed to send to the drive transferer 2.8 failures detected Compound. In this case, it is possible to record information about only one detected failure in the established connection, since subsequent failures, as a rule, are the result of the same source of failures (defect). At the same time, a write sync pulse is generated in the analyzer 24, which in case of failure not only records information into the transfer accumulator 28, but also records the state of the Station devices in the transfer store 29. Thus, the detected faults are localized while reducing the amount of information on failures by one set compound.

The clock pulses are not formed immediately, but after a predetermined time interval, necessary to wait for the station to respond to the subscriber action. For example, the Ready signal is connected to a line within a period of time not more than 0.5 s after a service request. At the same time, on the first (signal of the conversational path PT), the second (acoustic signal AC), the seventh, the decade (fixation of the call signal of the FSM and the tenth (call signal of the AC), the inputs of the analyzer 24 appear information only at the second input, i.e., the readiness of the Ready signal to the line of the caller is confirmed due to its reception by the receiver 21 acoustic signals, the output of which is connected to the second input of the analyzer 24. When dialing the number, the corresponding information signals roklyu18

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The buttons of the simulator 12's keyboard are sent to one of the seventh inputs of the analyzer 24, and there is no information about the presence of signals on the first, second, ninth and ten inputs due to the disconnection of the Ready signal after the first opening of the loop when translating dialing digit pulses into a line.

Receiving a call control signal by a caller is determined by the presence of corresponding information signals at the second and tenth inputs of the analyzer 24 line signals. The first signal is generated by the receiver 21 of acoustic signals, and the second - by the receiver 15 calls by matching the address of the monitored connection and the information about the call to the specified line formed by the corresponding simulator 9 of the called subscriber. At the same time, the corresponding integrator 27 provides for a delay in the closure of the line with respect to the appearance of the signal at the output in the corresponding simulator 9, which makes it possible to compare information about the presence of a ringing signal in the line of the callee and its test parcel in the line of the caller.

After the called subscriber answers and disconnects the ringing signal, information about the call ringing (MFC) and its disconnection from the outputs of the receiver 15 calls in parallel enters the translator 25 and the analyzer 24, providing a translation of the control signal of the path connected to the first input of the translator 25 through the corresponding The connecting transformer 26 and simulator 9 from the called subscriber to the caller, i.e. simulates an auto answer used to monitor the conversational path chain of an established connection. Due to the difference in the frequency of the control parcel (1000 Hz) and the acoustic station signals (425 Hz), the first is received by the receiver 22 and fixed by the latch 23 of the conversational path states, i.e. If there is information on call signal latching (PCF) on the ninth input of the analyzer 24, the working capacity of the conversational path circuit is also determined by the presence of a signal at the first input (PT) of the analyzer 24 linear signals. The established connection is held by the appropriate integrator 27 for a predetermined period of time necessary for organizing an answering service 27. When the integrator finishes, the callee is automatically released and the station is sent to the caller’s line, so when the analyzer receives 24 linear call command signals the signal from the receiver 15 calls or the inclusion of a malfunction sensor (on DN) from the control unit 11 is prohibited from analyzing the signals generated by nick 21 acoustic signals to prevent false positives analyzer 24 from the Zahn signal.

Thus, when detecting the unsettled connections fixed by the malfunction sensor 17, the line signal analyzer 24 and the transponders accumulators 28 and 29, a failure detection stage, i.e. a signal is generated for the presence of a failure of NO or an excess of the allowable number of rollbacks (overflow) of the control panel and the state of the station devices. For example, the connection was not established, and at the same time, at the service request stage, the subscriber did not receive the Ready signal. Based on the information received, the search for a defect is performed within the equipment providing the maintenance of this request (station devices for selecting and connecting intermediate lines, registers, etc.). In addition, the availability of information on the state of the station devices involved in servicing the request phase further reduces the scope of the problem search, since it indicates specific devices that did not provide the specified mode of operation, or revealed incompleteness during maintenance. Lack of ringing limits troubleshooting by cord sets and switching systems.

The range of monitored failures is also expanded by fixing faults that do not directly affect the establishment of connections, but deprive the subscriber of information about the station's response to its sequence of actions, due to the lack of connection of the corresponding acoustic signals to its line.

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Claims (1)

Formula of the image Retention Device for controlling an automatic telephone exchange on auth.St. No. 1218495, characterized in that, in order to provide an automated check of the conversation circuit of the established connection and localization of the connection failure stage, an acoustic signal receiver, a conversational path receiver, a linear signal analyzer, a path control signal translator, a failover drive transmitter, a translator are introduced the torus state accumulator, as well as transformers and integrators by the number of callee simulators, while the input of the receiver of acoustic signals is connected to the input of the receiver with The signal is also connected to the input of the receiver of the spoken path, the output of which is connected via the latch of the states of the spoken path to the third input of the And element and to the first input of the linear signal analyzer, the corresponding inputs of which are connected to the output of the receiver of acoustic signals, with the first and second outputs of the clock generator , with the first, second and third outputs of the control unit, with the fourth output of the key block, with the control output and the additional output of the call receiver, the second input of the talk state lock The first path is connected to the output of the first element I, the first and second inputs of the translator of the control signal of the path, the third input of which is the input of the frequency signal of the control, are connected respectively to the control output and to the auxiliary output of the call receiver, are connected to the first the inputs of the corresponding transformers, the second input of each of which is connected to the first output of the corresponding integrator and the first additional output of the corresponding simulator of the called a Onent, the second and third additional outputs and the first and second additional inputs of which are connected respectively to the first and second outputs and the second output of the corresponding integrator and to the output of the corresponding transformer, the first, second, third and fourth inputs of the fault accumulator of the failures torus accumulatorP158411812 bodies of states and are connected by a corresponding torus-nakshtel failure mode is connected to overflow output and you-corresponding analyzer output the course of the clock pulses of the analyzer of linear signals, and the signal inputs linear signals, with the outputs of the addressee of the state torus accumulator the monitored connection and the addresses are the status signal inputs programmer cycle, the fifth input of the trans devices of the monitored station.