CN203406979U - Digital trunk board of digital program-controlled scheduling switch - Google Patents
Digital trunk board of digital program-controlled scheduling switch Download PDFInfo
- Publication number
- CN203406979U CN203406979U CN201320510006.4U CN201320510006U CN203406979U CN 203406979 U CN203406979 U CN 203406979U CN 201320510006 U CN201320510006 U CN 201320510006U CN 203406979 U CN203406979 U CN 203406979U
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- digital
- logic control
- trunk board
- control driving
- digital trunk
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Abstract
The utility model relates to a component of a program-controlled switch and particularly relates to a digital trunk board of a digital program-controlled scheduling switch. The digital trunk board comprises a primary cluster interface circuit, the primary cluster interface circuit is connected with a logic control driving module, the logic control driving module is connected with a parallel interface, and the logic control driving module is connected with a protective circuit module. When the digital trunk board of the digital program-controlled scheduling switch is working, the voltage and the temperature of the logic control driving module are monitored through the protective circuit module, communication of the logic control driving module is stopped when the voltage and the temperature exceed a certain value, and working of the digital trunk board is restored when the voltage or temperature level drops to a normal level, thus effectively protecting normal operation of equipment.
Description
Technical field
The utility model relates to a kind of programme-controlled exchange thermomechanical components, especially a kind of digital program control scheduling switch Digital Trunk Board.
Background technology
Different telephone exchanges for electric power dispatching is the equipment of talking connection between a kind of user of realization, generally includes speech path equipment and control appliance two large divisions.Wherein, speech path equipment mainly comprises various interface circuit and switching network; Control appliance mainly comprises marker and register(system), control appliance generally adopts computer to realize, be that different telephone exchanges for electric power dispatching is to adopt computer to carry out programme controlled equipment, utilization realizes the work of switching system to the scanning of speech path equipment state and program control.
In different telephone exchanges for electric power dispatching, be generally provided with a Digital Trunk Board, be used to switch that the primary group interface of two 2.048Mb/S is provided, the extraction that realizes line code conversion, transmission error control, frame synchronization, line signal insertion extraction, clock signal by a logic control driver module is output as the function that system provides reference clock.But existing Digital Trunk Board is when signal forward relay, and deal with data and semaphore are larger, logic control driver module load is large, so voltage and temperature rise are large, situation is easily burnt when serious.
Summary of the invention
The utility model provides a kind of energy support equipment steady operation, avoids the digital program control scheduling switch Digital Trunk Board of device damage.
To achieve these goals, the utility model adopts following technical scheme:
It comprises that primary group interface circuit, primary group interface circuit connect logic control driver module, and logic control driver module connects parallel interface, and its improvement is: described logic control driver module connects a protective circuit module.
Preferably, described protective circuit module comprises one or more in thermistor unit, piezo-resistance unit and clamped protected location.
Owing to having adopted said structure; digital program control scheduling switch Digital Trunk Board of the present utility model passes through a protective circuit module when work; the voltage of monitoring logic drive control module and temperature; when surpassing certain numerical value; stop the communication of logical drive control module; when voltage or temperature levels drop to normal level, resume work, effectively protected the normal operation of equipment.
Accompanying drawing explanation
Fig. 1 is the modular structure schematic diagram of the utility model embodiment.
Embodiment
As shown in Figure 1; the digital program control scheduling switch Digital Trunk Board primary group interface circuit 1 of the utility model embodiment, primary group interface circuit 1 connect logic control driver module 2; logic control driver module 2 connects parallel interface 3, and described logic control driver module 2 connects a protective circuit module 4.When work, protective circuit module 4 monitoring logics are controlled the operational factor of driver module 2, during parameter overrate, stop its work, when recovering normal value, resume work.
Concrete, the parameter of monitoring due to protective circuit module 4 is mainly temperature and voltage, so in the present embodiment, described protective circuit module comprises one or more in thermistor unit, piezo-resistance unit and clamped protected location.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (2)
1. digital program control scheduling switch Digital Trunk Board; comprise that primary group interface circuit, primary group interface circuit connect logic control driver module; logic control driver module connects parallel interface, it is characterized in that: described logic control driver module connects a protective circuit module.
2. digital program control scheduling switch Digital Trunk Board as claimed in claim 1, is characterized in that: described protective circuit module comprises one or more in thermistor unit, piezo-resistance unit and clamped protected location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510006.4U CN203406979U (en) | 2013-08-09 | 2013-08-09 | Digital trunk board of digital program-controlled scheduling switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510006.4U CN203406979U (en) | 2013-08-09 | 2013-08-09 | Digital trunk board of digital program-controlled scheduling switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203406979U true CN203406979U (en) | 2014-01-22 |
Family
ID=49942897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320510006.4U Expired - Fee Related CN203406979U (en) | 2013-08-09 | 2013-08-09 | Digital trunk board of digital program-controlled scheduling switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203406979U (en) |
-
2013
- 2013-08-09 CN CN201320510006.4U patent/CN203406979U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20140809 |
|
| EXPY | Termination of patent right or utility model |