JPH0879805A - Diagnostic system for dial pulse receiver - Google Patents

Abstract

PURPOSE: To provide a dial pulse receiver diagnostic system in which the normality of the dial pulse receiver is confirmed by the control of a control section without provision of a dial pulse transmission means. CONSTITUTION: A control signal of a subscriber circuit is given by a bit map allocated to a signal on a subscriber control highway SD HW and a monitoring state of the subscriber circuit is given to a dial receiver 1 via the state monitor highway SCN HW. The subscriber signal processing system as above is provided with an insert circuit 3 in which bits of an optional subscriber on a subscriber control highway are inserted of an optional dial pulse receiver channel on the subscriber state monitor highway to the dial pulse receiver and a control section 5 of the subscriber signal processing system controls bits of the subscriber control highway and detects the reception result of the dial pulse receiver.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diagnostic system for a dial pulse receiver of a subscriber signal processing system.

[0002]

2. Description of the Related Art For diagnosis of a conventional dial pulse receiver, as shown in Japanese Patent Laid-Open No. 217194/1993, a number sending trunk is prepared, and a dial pulse returning means is used to turn the number pulse receiving trunk (to a dial pulse receiver). Equivalent)
I returned to and confirmed the normality of the number receiving trunk.

[0003]

In the above-mentioned conventional method, dial pulse sending means is required for diagnosing the dial pulse receiver. Therefore, in the method of the present invention, only the return insertion means is added for diagnosis.
An object of the present invention is to provide a dial pulse receiver diagnostic method capable of confirming the normality of the dial pulse receiver under the control of the control unit.

[0004]

According to the dial pulse receiver diagnosis method of the present invention, the control signal of the subscriber circuit is given by a bit map assigned to the signal on the subscriber control highway, and the status of the subscriber circuit is monitored. Is given to the dial pulse receiver via the status monitoring highway, in the subscriber signal processing system, the bit of any subscriber on the subscriber control highway is dialed to the dial receiver on the subscriber status monitoring highway. The control unit of the subscriber signal processing system is provided with an insertion circuit that can be inserted into the bits of the pulse receiver channel, and the control unit of the subscriber signal processing system is capable of controlling the bits of the subscriber control highway and that of the dial pulse receiver. The reception result can be detected.

Further, it is preferable that the state monitoring highway is directly connected to the dial pulse receiver or is connected to the dial pulse receiver via a switch circuit.

[0006]

The control section of the subscriber signal processing system controls the insertion circuit to give a diagnostic signal to the dial pulse receiver, and checks the reception result to make a diagnosis.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. 1 is a block diagram showing a dial pulse receiver diagnostic method of the present invention, FIG. 2 is a flow chart for explaining the operation of the embodiment of FIG. 1, and FIG.
It is a waveform diagram which shows the control pattern of the bit returned to a dial pulse receiver.

1 is a dial pulse receiver to be diagnosed (hereinafter abbreviated as DPR), 2 is a subscriber control highway (hereinafter referred to as SPR).
A circuit that controls each bit of D / HW (abbreviated as SD below)
(Abbreviated as circuit), 3 is an insertion circuit, 4 is a switch circuit, and 5 is a controller. The control unit 5 controls the SD circuit 2,
It can control any bit for any subscriber on the HW.

The switch circuit 4 is normally SCN / HW.
Among the status monitoring bits of the subscriber receiving the above dial,
DPR the loop status bit that is the source of the dial pulse
Enter in l. In the highway between the switch circuit 4 and DPRl, the bits corresponding to each channel of DPRl are multiplexed. The insertion circuit 3 is controlled by the control unit 5 during diagnosis.
Has a configuration in which a specific bit of an arbitrary subscriber on the SD / HW can be inserted into a bit corresponding to an arbitrary DPR channel on the highway between the switch circuit 4 and DPRl.

Next, the operation of the dial pulse receiver diagnostic system of the embodiment of FIG. 1 will be described with reference to FIGS. 2 and 3. The control unit 5 determines a specific subscriber and sets the S of that subscriber.
The inserting circuit 3 is controlled so that the specific bit on the D / HW is inserted into the bit under test of the DPRl on the highway between the switch circuit 4 and the DPRl (step S).
1). The control unit 5 controls the SD circuit 2 to control the folding bit like a dial pulse as shown in FIG. 3A (step S2), and after the inter-digit timing, reads the reception result of DPR1 to obtain a normal number. Information (“3” in the example in the figure)
It is checked (step S3). Further, as shown in FIG. 3 (b), the return bit is changed like a midway release (step S4), and after the disconnection timing, the reception result of DPR1 is read and it is checked whether it is abandoned midway (step S5). Next, it is judged whether or not the diagnosis is performed for all the channels of DPR1 (step S6). If the diagnosis is not performed for all the channels, the process returns to step S1 to proceed to the diagnosis for the next channel, If the diagnosis has been made for, the diagnosis is terminated. In addition, if the subscriber on the SD circuit side that sends the test bit is also changed and the judgment is made based on the combination of the reception results, the diagnosis can be performed with higher accuracy, and at the same time, the normality on the SD circuit side can be confirmed.

[0011]

As described above, according to the present invention, the bit to any subscriber on the subscriber control highway is set to the bit of any dial pulse receiver channel on the subscriber status monitoring highway to the dial pulse receiver. In order to eliminate the need for a dial pulse sending circuit for diagnosis, by changing the bit to be returned to the dial pulse receiver like a dial pulse or abandoning halfway, and comparing with the reception result of the dial pulse receiver. There is an effect that the normality of the dial pulse receiver can be confirmed and an economical dial pulse receiver diagnostic method can be provided.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a dial pulse receiver diagnostic system of the present invention.

FIG. 2 is a flowchart illustrating the operation of the embodiment of FIG.

FIG. 3 is a waveform diagram showing a control pattern of bits to be returned to the dial pulse receiver in the embodiment of FIG.

[Explanation of symbols]

1 dial pulse receiver (DPR) 2 subscriber control bit pattern control circuit (SD circuit) 3 insertion circuit 4 switch circuit 5 control unit S1 to S6 steps

Claims (3)

[Claims] A subscriber circuit control signal is provided in a bit map assigned to a signal on a subscriber control highway, and subscriber circuit condition monitoring is provided to a dial pulse receiver via a condition monitoring highway. Insertion circuit that can insert the bit of any subscriber on the subscriber control highway into the bit of any dial pulse receiver channel on the subscriber state monitoring highway to the dial pulse receiver in the subscriber signal processing system And a control unit of the subscriber signal processing system capable of controlling a bit of a subscriber control highway and detecting a reception result of a dial pulse receiver. Pulse receiver diagnostic method. 2. The dial pulse receiver diagnostic system according to claim 1, wherein the condition monitoring highway is directly connected to the dial pulse receiver. 3. The dial pulse receiver diagnostic system according to claim 1, wherein the condition monitoring highway is connected to the dial pulse receiver in a narrowed manner via a switch circuit.