JPS5932022B2 - How to connect and configure regulated ground identification devices - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of connecting and configuring a regulated ground identification device in a time division switch.

FIG. 1 shows an example of the configuration of a restricted ground identification device used in a conventional space-division type electronic exchange. Reference numeral 1 indicates a lower level station (hereinafter referred to as upper station) such as a network management center or central station, 2 indicates a central station lower than the upper station 1, and 3 indicates a terminal station under the upper station.

Reference numeral 4 denotes a regulation information sending device disposed in the upper station 1, 6 a regulation ground identification device, and T a central control unit for controlling the toll exchange provided in the lower station 2.

Here, when there is congestion of calls on the landmark lines or exchanges constituting the exchange network, the restriction ground identification device 6 receives restriction information from the restriction information transmitting device 4 of the land station 1 having a network management function. The restricted location identification device 6 receives call connection restriction information obtained by the central control device 7 by determining the restricted location, degree of restriction, etc.
In other words, a grouping processing command is sent to the subordinate terminal station 3, and the information is used to ensure that emergency calls, emergency calls, etc. can be made immediately. Note that, at this time, connection regulation control for the own station is also performed. The operation of the regulated ground identification device 6 is as follows:
This will be explained in detail according to the figure. Here, when a start signal is sent from the regulation information sending device 4 of the upper station 1 via the trunk line 16 and the transport device 5, the signal is input to the regulation ground identification device 6. When the trunk unit 13 receives the signal, the central control unit 7 detects the signal via the control unit 14. After that, the incoming trunk unit 13 returns the activation completion signal to the higher-level station 1 according to a command from the central control unit 7. The upper station 1 then transmits call connection regulation information in the form of a multi-frequency (MF) signal to the lower station, the central station 2.
Send to.

The restricted ground identification device 6 inputs this information to the input trunk section 13.
Next, the central control unit 7 decodes the received contents of the MF receiver 8, returns to its own station, and performs grouping processing, and the control unit 14
and issues a command for grouping processing to the terminal stations 3 under its control in order to ensure immediate communication of emergency calls, emergency calls, etc. In the above situation, when the upper station 1 wants to check the normality of the regulatory notification processing of the lower station 2, it activates the lower station 2 by a maintenance person's operation, and then activates the MF using the same procedure as described above. Send test call information by signal. When the central controller 7 identifies that the received information is test call information, it controls the control unit 14 to switch the contact 15 of the incoming trunk outgoing relay to the test incoming trunk 9 side, and connects it to the test incoming trunk 9 side. Start against it. Thereafter, the central control unit 7. receives the start-up completion signal, and sends it from the incoming trunk section 13 to the higher-level station 1 as a start-up preparation completion signal. When the upper station 1 receives the signal, it sends information such as the station number, test number, or subscriber number of the destination to be tested in the form of an MF signal. Below, in lower station 2, space is divided. Network 10, M
F-in register trunk 11. A device such as the talk trunk 12 performs a connection operation as a general call process, and if the regulation process is executed correctly, the maintenance person at the station 1 will issue a predetermined talk tone such as ``Please wait for a while and then call again.'' You will hear a message to that effect. As described in detail above, in this configuration, the restricted ground identification device 6 receives instructions from the central control device 7 to (1) receive the restricted information from the upper station and control the test call.

(2) Sending grouping commands to affiliated terminal stations〇 It performed functions such as.

Therefore, the internal operation and configuration of the restricted ground identification device 6 become complicated, and in order to directly interface with the upper station 1 and have the above-mentioned function (1), an internal interface section (input section) is required. A trunk section 13) is required, and a dedicated MF receiver 8 for receiving multi-frequency signals is also required.
It is also economically expensive due to the dedicated equipment. The present invention was made to provide a regulated ground identification function to a time-division switch, and as mentioned above, eliminates the drawbacks of the function used in a space-division switch, and makes it possible to apply it to a time-division switch. This made it possible.

In other words, it focuses on the signal processing function of the call path testing device in the time-division switch, and allows the call path testing device to receive control information from the National Register Office and control test calls. This is intended to simplify the function and configuration of the ground identification device and to make it more economical.

This will be explained in detail below using figures. FIG. 2 is an embodiment of the present invention, showing a connection configuration for a restricted ground identification device in the case of a time-sharing exchange.

Here, 1 to 5 and 7 and 16 have the same functions and configurations as in FIG. 23 is a time division network, 22
23 is a communication path test device for testing the network 23 and various trunk devices (not shown); 34 is a time-division multiplexed test cable; and 21 is a restricted ground identification device.

In the time division network 23, all voice information and control information for exchange operations are digitally time division multiplexed and transmitted and exchanged in that format. Further, numerals 24 and 25 are digital signal trunks for respectively transmitting and receiving a supervisory signal and a selection signal for this exchange operation. Further, 27 inside the digital channel testing device 22 is an A/D converter that converts the signal from the upper station from analog to digital, and 28 converts the signal to the rank station from digital to digital.
A D/A converter that performs analog conversion; 29 and 30 are supervisory signal trunks that transmit and receive digital supervisory signals for testing; 31 and 32 are MF signal trunks that transmit and receive digital multifrequency signals (MF); 33 is test equipment 2
A digital switch section 26 for distributing and connecting test signals, talk signals, etc. to the test-use Eway 34 accommodated in 2.
is a communication path test control device that controls the test device 22 according to the commands of the central control device 7. In the above configuration, the activation signal for sending out regulation information is sent from the land station 1 to the trunk line 16.
, transport device 5. When the signal is sent through the central station 2, which is a lower station, it is first converted into digital data by an A/D converter 27 and assigned to a specific signal time slot on the highway. Thereafter, when the digitally converted signal is received by the supervisory signal receiving trunk 29 via the digital switch section 33, the climate control device 26 receives the digitally converted signal.
The MF signal reception trunk is captured by this, and then a start-up completion signal is sent from the supervisory signal transmission trunk 30.
This startup completion signal is converted into a signal by the D/A converter 28 and sent back to the upper station 1. After 0, the upper station 1 sends the regulation information as an MF signal via the trunk line 16 and the transport device 5. The A/D converter 27 converts the signal into digital data and assigns it to a specific predetermined call time slot.
This assigned signal is received by the MF signal receiving trunk 31. In the central control device 7, the MF signal receiving trunk 3
After decoding the received signal in step 1, a command is sent to the control device 26,
A grouping command is sent to the affiliated terminal stations 3 via the restricted ground identification device 21. Next, after sending the grouping command, in the case of a test call from the higher-level station 1 to confirm the normality of regulatory information processing, activation control} and MF signal reception control are performed in the same manner as above. 0 That is, when the central control device 7 identifies information from the upper station 1, in other words, identifies the test call, the control device 26 controls the test call, and the digital switch section 33 performs information transmission from the upper station 1. A specific call time slot is connected to a dedicated time slot for regulatory ground identification assigned to the test highway 34.

Thereafter, the test equipment 22 performs startup control on the time division network 23 using the supervisory signal trunks 29 and 30 via the interface line 34, and when normal, sends a startup preparation completion signal to the upper station 1. Since the upper station 1 sends the destination number information using an MF signal, the lower station 2 is the central station 2.
Now, the time division network 23, the signal receiving trunk 24
The connection operation is performed as general call processing. If the regulation process is correct, the maintenance person at the upper station can hear a predetermined tone, so the maintenance person can know that the regulation process has been carried out correctly. On the other hand, if the restriction process is not performed correctly, the predetermined tone cannot be heard, and the maintenance person can distinguish it from the normal state as indicating that the restriction process was not performed correctly. A case will be described in which the carrier device that transmits signals between the regulatory information transmitting device 4 in No. 1 and the testing device 22 in the lower station 2 is the same as the space-division type, and the interface with the testing device is in the analog signal format. However, the present invention is not limited thereto.

For example, the test device may handle digitized time-division multiplexed signals, and in this case, the test device does not require an A/I converter or the like as shown in the above embodiment.
As described above in detail, in the above embodiment, the digital switch section 33 of the communication path test device 22 is connected to the digital switch section 1.
It provides regulatory information and a specific time slot for test calls, interfaces with the upper station 1 via the carrier device 5, and monitors signals for time-division channel testing by the channel testing device 22, MF. Since the signal transmitting/receiving function is utilized, reception of regulation information from the upper station 1 and test call control can be performed without providing a special signal transmitting/receiving device. That is, the incoming trunk section 1 for transmitting and receiving signals with the higher-level station, which is included in the regulated ground identification device of the space-division type exchange according to the prior art.
3. No configuration such as a dedicated MF receiver 8 is required, and by using the communication path test device 22, the regulated ground identification device 2
1, it is sufficient to have the function of sending out grouping commands to the terminal stations under its control, and the regulated ground identification device 21 can achieve a wide range of functions, simplify the configuration, and make the device more economical. There are advantages.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the connection configuration of a regulated ground identification device used in a space-division exchange and other devices and stations, and FIG. 2 is a diagram of a time-division exchange using the connection configuration according to the present invention. This is an example of a connection configuration of a restricted ground identification device. 1...Network management center or upper station (central station),
2... Lower station (centralized station), 3... Terminal station, 4... Regulation information sending device, 5... Transport device, 6, 21. ...Regulated ground identification device, 7.
... Central control unit, 8 ... Multi-frequency (MF
) Signal receiver, 9...Test trunk, 10
・・・・・・Space division network, 11・・・・・・
MF input register trunk, 12...Talking trunk, 13...Input trunk section, 14...
- Regulation ground identification device control unit, 15... switching contact, 16... relay line, 22... call path testing device, 23... time division network Work, 24・
...Digital signal receiving trunk, 25...
・Digital signal transmission trunk, 26...Call path test control device, 27...A/D converter, 28.
...D/A converter, 29...Monitoring signal receiving trunk, 30...Monitoring signal transmitting trunk,
31...MF signal receiving trunk, 32...
...MF signal transmission trunk, 33...Digital switch section, 34...Time division multiplex highway for testing.

Claims (1)

[Claims] 1. An upper station that has a network management function and sends out regulation information when calls on the local lines and exchanges that make up the exchange network are congested;
It is a time division switch that is connected via a test highway and has a lower station equipped with communication path test equipment consisting of trunks used for sending and receiving information, digital switches, and devices that control them, and terminal stations under the lower station. In this system, the lower station is equipped with a regulated ground identification device that intervenes in sending and receiving information regarding the regulated ground to subordinate terminal stations, and the relay line from the upper station is accommodated in the digital switch of the communication path testing device. Restriction information from the upper station to the lower station via the trunk line and various information necessary for controlling the test call are received on the trunk via the digital switch of the communication path testing device that accommodates the trunk line, If it is restriction information, a connection restriction command is sent to the terminal station under control via the restriction ground identification device to restrict connection, and if it is a test call, it is sent to the time division exchange via the test highway as normal call processing. A method for connecting and configuring a regulated ground identification device, which is characterized in that it is tested by performing a connection operation to a regulated ground identification device.