CN101141507B - Power-off escape method and apparatus - Google Patents
Power-off escape method and apparatus Download PDFInfo
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- CN101141507B CN101141507B CN2007101641633A CN200710164163A CN101141507B CN 101141507 B CN101141507 B CN 101141507B CN 2007101641633 A CN2007101641633 A CN 2007101641633A CN 200710164163 A CN200710164163 A CN 200710164163A CN 101141507 B CN101141507 B CN 101141507B
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Abstract
The present invention discloses a power breakdown escaping device, which comprises at least an external switching office FXO interface and at least two corresponding external switching station FXS interfaces, the FXO interface is connected with a public telephone exchange network PSTN, the FXS interface is connected with a telephone equipment, the present invention also comprises a switch switching unit corresponding to the quantity of the FXS interface, the switch switching unit is used to control the connection with FXS internal processing circuit when the FXS interface on the device is deenergized, when being deenergized, the device is connected with the corresponding FXS interface. The present invention effectively reduces the quantity of a standby FXO interface, the investment cost and the usage cost of a user are lowered; and the breakdown escaping between a board card is realized, the complexity of the board card software and hardware design is reduced, and thus being convenient for the user to operate.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of power-off escape method and equipment.
Background technology
Analog of telephone line inserts VoIP (Voice over IP, IP-based voice) network phone system, or traditional forms of enterprises's communication switchboard is when being connected to the IP network service provider equipment, all need (Foreign eXchange Station by FXS, FXS) and FXO (Foreign eXchange Office, FXO) realize.Wherein, FXS is a kind of cable voice port, be digital telephone exchange system and POTS (P1ain Old Telephony Service, Plain Old Telephone Service) a circuit link between the phone, FXS simulation PABX (Private Automatic Branch eXchange, PABX) extension set interface (or user interface of central office), can realize being connected of an ordinary telephone set and a multiplexer, FXS can directly link to each other with common analog telephone, facsimile machine, IP phone.FXO is a kind of cable voice port, it is a relay connection between central office exchange and the digital telephone exchange system, for the central office, FXO simulates a PABX extension set, can realize being connected of an ordinary telephone set and a multiplexer, just the interface that directly links to each other with the stored-program control exchange of telephone office with analog form.
Continuous development and user's improving constantly along with voip technology to the VoIP reliability requirement, the power-off survival function of most of VoIP equipment suppliers' product support FXO interface, it realizes that principle is: when voice gateways or router device outage, normally-closed contact by relay directly is connected the corresponding Tip of two electric wire Tip (positive electrical wire) of the composition telephony wiring circuit of FXS interface FXO interface direct with Ring (negative electrical wire) and the escape outlet with Ring, because the Tip of FXO interface and Ring are respectively and PSTN (Public Switched Telephone Network, public switched telephone network (PSTN)) Tip of office of network center links to each other with Ring, this moment, the equipment of user side was equivalent to be directly connected on the PSTN network, and voice gateways or router device are by bypass.As long as the PSTN network work is normal, the user can normally call out and facsimile service under VoIP device powers down state.When voice gateways or router device powered on, the normally-closed contact of relay disconnected, and the normally opened contact adhesive does not influence the operate as normal of voice gateways and router.
Existing FXO interface power-off survival mode is that the FXS interface is corresponding one by one with escape outlet FXO interface, and a certain FXO interface only can be for specific a certain FXS interface escape when outage.As shown in Figure 1, the 2FXS1FXO interface card of certain company, only the FXS1 interface is supported the power-off survival function, the FXS0 interface is not supported the power-off survival function, when phone need be when the FXS1 interface be breathed out, if VoIP equipment operate as normal is then directly carried out language data process by the inter-process circuit, and breathes out by voice gateways; If the VoIP device powers down then inserts public telephone network by FXO; When by the incoming call of FXO interface, if VoIP equipment operate as normal is then directly carried out language data process by the inter-process circuit,, then send the shake bell by FXS1 if during the VoIP device powers down, the user is answered.For make when outage all FXS interfaces all can escape, need to exist the FXO interface corresponding with FXS interface quantity.
Yet the frequency that the abnormal conditions of use power-off survival take place is extremely low, stands ready as the escape outlet for such abnormal conditions provide a large amount of FXO interfaces, will certainly cause the wasting of resources of equipment, increases the weight of user's cost of investment.But in order to reduce user's cost of investment, do not provide the FXO interface with quantity such as FXS interface, only support the power-off survival function of some FXS interface, make that the user need search available phone one by one when device powers down, use to the user and brought very big inconvenience.
In addition, the scope of application of power-off survival is limited to the same integrated circuit board inside of card insert type voice gateways or router in the prior art, can't support the power-off survival between integrated circuit board, when integrated circuit board designs, have to FXS interface and FXO Interface design to have brought inconvenience for design and user use an integrated circuit board inside.
Summary of the invention
The embodiment of the invention provides a kind of power-off escape method and equipment, to realize that same FXO interface can be used as the escape outlet of a plurality of FXS interfaces, and can support the power-off survival between different integrated circuit boards, support the FXS interface of integrated circuit board to pass through fixedly FXO interface power-off survival.
The embodiment of the invention provides a kind of power breakdown escaping device, comprise at least one FXO FXO interface and at least two FXS FXS interfaces, described FXO interface is connected with public switched telephone network (PSTN) PSTN, described FXS interface is connected with telephone plant, also comprise and the corresponding switch switching unit of described FXS interface quantity
Described switch switching unit is a relay, the normally opened contact of described FXS interface by relay separately and FXS inter-process circuit separately are connected, described relay is used to control the FXS interface and is connected with FXS inter-process circuit when device powers on, described FXS interface is connected with same FXO interface by the normally-closed contact of relay separately, described relay be used to control the FXS interface when device cuts off the power supply with corresponding FXO interface connection.
Described with corresponding FXO interface connects and specifically comprises: the TIP line of FXS interface is connected with the TIP line of FXO interface, and the RING line of FXS interface is connected with the RING line of FXO interface.
The present invention also provides a kind of power-off survival system, comprises base plate, is arranged at least one FXO interface and at least one FXS interface board on the FXO interface board; Comprising under the FXS interface board situation, described FXS interface board comprises at least two FXS interfaces, comprising under the above FXS interface board situation, described FXS interface board comprises at least one FXS interface, also comprise the corresponding switch switching unit of FXS interface quantity that comprises with described FXS interface board in the described FXS interface board
Described switch switching unit is a relay, the normally opened contact of described FXS interface by relay separately and FXS inter-process circuit separately are connected, described relay is used to control corresponding FXS interface and connects with described corresponding FXS interface inter-process circuit when described FXS interface board powers on, described FXS interface is connected with same FXO interface by the normally-closed contact of relay separately, described relay be used to control the FXS interface when the FXS interface board cuts off the power supply with corresponding FXO interface connection.
Described at least one FXO interface is arranged on the FXO interface board, by idle pin of back plane connector and corresponding FXS interface connection; Or described at least one FXO interface is arranged on the base plate, connects with corresponding FXS interface.
The present invention also provides a kind of power-off escape method, be applied to comprise in the device of at least one FXO FXO interface and at least two FXS FXS interfaces, described FXO interface is connected with public switched telephone network (PSTN) PSTN, described FXS interface is connected with phone or facsimile machine, said method comprising the steps of:
Described at least two FXS interfaces are divided into groups;
Make the normally opened contact of FXS interface by corresponding relay and FXS separately the inter-process circuit be connected, be used for controlling FXS interface in the same grouping and when device powers on, be connected with FXS interface inter-process circuit separately respectively;
The FXS interface is connected with same FXO interface by the normally-closed contact of corresponding relay, and the FXS interface FXS interface FXO interface corresponding with this grouping in this grouping when the device outage that is used for controlling in the same grouping connects.
The FXO interface that FXS interface in the described same grouping is corresponding with this grouping connects and specifically comprises: the TIP line of FXS interface is connected with the TIP line of FXO interface, and the RING line of FXS interface is connected with the RING line of FXO interface.
Described at least one FXO interface and described at least two FXS interfaces are arranged on the same integrated circuit board; Or described at least one FXO interface is arranged on the FXO interface board, and the FXO interface corresponding with same grouping is connected by back plane connector free time pin with the FXS interface of this same grouping; Or described at least one FXO interface is arranged on the base plate, connects with corresponding FXS interface.
In the embodiments of the invention, effectively reduce the quantity of standby FXO interface, reduced user's cost of investment and use cost; And realize the power-off survival between integrated circuit board, reduced the complexity of integrated circuit board design of hardware and software, convenient for users.
Description of drawings
Fig. 1 is the connection diagram of FXS interface power-off survival in the prior art;
Fig. 2 is to be the schematic diagram of example with the 2FXS1FXO interface card among the present invention;
Fig. 3 is the escape mode schematic diagram between card insert type voice gateways or fot router among the present invention;
Fig. 4 is the fixed interface FXO interface that provides by panel among the present invention schematic diagram of escaping.
Embodiment
Be elaborated below in conjunction with specific embodiment.
The present invention's multi-section phone in daily use is being connected on the same interface mode of using at times by the mode of getting lines crossed.Its core concept is that the Tip of a plurality of FXS interfaces and Ring are parallel to respectively on the Tip and Ring of FXO interface by the normally-closed contact of relay, when device powers down, phone on these FXS interfaces is being equivalent to be connected simultaneously on the PSTN network by the mode of getting lines crossed, and is in full accord with the situation that the multi-section cross talk is used.The benefit of doing like this is the quantity that has reduced the outage escaping exit, under identical escaping exit quantity, but the phone of operate as normal when the user need not search outage one by one, at will plucked a phone, as long as do not use the escape outlet just can normally use with shared other phones that export of escaping of this phone.Though the present invention is mainly used under the situation of device powers down and escapes, but also can expand to the situation that other faults take place equipment according to actual conditions, only during device powers down, realize escaping from FXO interface phone automatically in relay outage back, and for other faults, because equipment is outage not, relay can not automatically switch to the escape of FXO interface phone, therefore needs the switch of control unit (for example CPU etc.) control relay in the equipment.
According to above-mentioned thought, the invention provides a kind of power breakdown escaping device, comprise that at least one FXO interface, at least two FXS interfaces reach and the corresponding switch switching unit of described FXS interface quantity.Wherein, the FXO interface is connected with PSTN, the FXS interface is connected with telephone plant, switch switching unit is used to control the FXS interface and is connected with FXS inter-process circuit when device powers on, in when outage device and corresponding FXO interface connection: the TIP line of FXS interface is connected with the TIP line of FXO interface, and the RING line of FXS interface is connected with the RING line of FXO interface.Switch switching unit includes but not limited to relay, and when being relay, the FXS interface is connected with the FXO interface by the normally-closed contact of described relay, and the FXS interface is connected with FXS inter-process circuit by the normally opened contact of relay.
In the above-described embodiments, the shared FXO interface of a plurality of FXS interfaces of same device interior is as the escape outlet.8FXS/8FXO interface card for original just can be designed as the 8FXS/4FXO interface card, and the shared FXO interface of per 2 FXS interfaces has effectively reduced the quantity of FXO interface as the escape outlet, has reduced user's cost.The present invention is an example with the 2FXS1FXO interface card, and as shown in Figure 2, when device powers down, the FXS_TIP1 of FXS1 and FXS_RING1 are connected to FXO_TIP and the FXO_RING of FXO respectively by relay 1; The FXS_TIP0 of FXS0 and FXS_RING0 are connected to FXO_TIP and the FXO_RING of FXO respectively by relay 0, the phone on FXS1 and the FXS0 interface is being equivalent to be connected simultaneously on the PSTN network by the mode of getting lines crossed.When device power, the FXS_TIP1 of FXS1 and FXS_RING1 are connected to the FXS_T1 and the FXS_R1 of FXS1 inter-process circuit respectively by relay 1; The FXS_TIP0 of FXS2 and FXS_RING0 are connected to the FXS_T0 and the FXS_R0 of FXS0 inter-process circuit respectively by relay 0, carry out communicating by voice gateways after the normal language data process.
The present invention also provides a kind of power-off survival system, comprises at least one FXO interface, at least one FXS interface board and base plate; Comprising under the FXS interface board situation, described FXS interface board comprises at least two FXS interfaces, comprising under the above FXS interface board situation, described FXS interface board comprises at least one FXS interface, also comprise in the described FXS interface board and the corresponding switch switching unit of described FXS interface quantity, described switch switching unit is used to control corresponding FXS interface and is connected with described FXS interface inter-process circuit when described FXS interface board powers on, and connects with described corresponding FXO interface when the FXS interface board cuts off the power supply.This system is mainly used in the escape mode between card insert type voice gateways or fot router, as shown in Figure 3.The Tip of the FXS interface of same integrated circuit board inside and Ring are parallel on the Tip and Ring of integrated circuit board and back plane connector by the normally-closed contact of relay, and the Tip of connector and Ring are connected on the Tip and Ring of specific escape slot position connector by the base plate upward wiring.The Tip of other groove positions and Ring are connected on other the Tip and Ring of this escape groove position, and each is connected respectively on the Tip and Ring of corresponding FXO interface Tip/Ring.These Tip and Ring use integrated circuit board and the unnecessary contact pin of back plane connector respectively, do not influence the normal use of other integrated circuit boards like this.When the FXS interface board cuts off the power supply, normally-closed contact by relay directly is connected the corresponding Tip of two electric wire Tip of the composition telephony wiring circuit of FXS interface FXO interface direct with Ring and the escape outlet with Ring, because the Tip of FXO interface links to each other with Ring with the Tip of office of PSTN network center respectively with Ring, this moment, the FXS interface was equivalent to be directly connected on the PSTN network, therefore, the FXS interface on these groove positions can be called out by the FXO interface on the escape groove position.Router that has 4 slots for example, 2-4 groove position can be inserted the 4FXS card respectively, and 1 groove position is as specifying escape groove position to insert the 3FXO interface card, and the FXS interface of 2-4 groove position is 3 each FXO interfaces escape by 1 groove position respectively.Certainly, 2-4 groove position also can be inserted the 1FXS card that only has a FXS interface respectively.
In addition, card insert type voice gateways of the present invention or router also can be by the escape modes of fixing escape outlet, as shown in Figure 4.Similar with the implementation of Fig. 3, the only Tip of each groove position and Ring and be free of attachment to specific groove position, but the some or several fixing FXO interfaces of the equipment that is connected to.Router that has 4 slots for example, 4 slots all can insert the 4FXS card, and these FXS interfaces are escaped by the fixed interface FXO interface that panel provides.
The present invention also provides a kind of power-off escape method, be applied to comprise in the device of at least one FXO FXO interface and a plurality of FXS FXS interfaces, described FXO interface is connected with public switched telephone network (PSTN) PSTN, and described FXS interface is connected with phone or facsimile machine.FXO interface and FXS interface are arranged on the same integrated circuit board; Or described FXO interface is arranged on the FXO interface board, connects by the idle pin of back plane connector; Or described FXO interface is arranged on the base plate.Said method comprising the steps of:
Step s101 divides into groups described a plurality of FXS interfaces.
Step s102, the FXS interface of controlling in the same grouping is connected with each FXS interface inter-process circuit respectively when device powers on, in when outage device and corresponding FXO interface connection.Wherein, the FXS interface of controlling in the same grouping is connected with each FXS interface inter-process circuit respectively when device powers on, realize by relay with corresponding FXO interface connection in when outage device, specifically comprise: when the FXS interface arrangement powers on, the FXS interface is connected with FXS inter-process circuit by the normally opened contact of corresponding relay, when the FXS interface arrangement cut off the power supply, the FXS interface was connected with the FXO interface by the normally-closed contact of corresponding relay.The FXS interface is connected specifically with the FXO interface and comprises: the TIP line of FXS interface is connected with the TIP line of FXO interface, and the RING line of FXS interface is connected with the RING line of FXO interface.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (7)
1. power breakdown escaping device, comprise at least one FXO FXO interface and at least two corresponding FXS FXS interfaces, described FXO interface is connected with public switched telephone network (PSTN) PSTN, described FXS interface is connected with phone or facsimile machine, it is characterized in that, also comprise and the corresponding switch switching unit of described FXS interface quantity
Described switch switching unit is a relay, the normally opened contact of described FXS interface by relay separately and FXS inter-process circuit separately are connected, described relay is used to control the FXS interface and is connected with FXS inter-process circuit when device powers on, described FXS interface is connected with same FXO interface by the normally-closed contact of relay separately, described relay be used to control the FXS interface when device cuts off the power supply with corresponding FXO interface connection.
2. power breakdown escaping device according to claim 1 is characterized in that, described with corresponding FXO interface connects and specifically comprises: the TIP line of FXS interface is connected with the TIP line of FXO interface, and the RING line of FXS interface is connected with the RING line of FXO interface.
3. a power-off survival system comprises base plate, is arranged at least one FXO interface and at least one FXS interface board on the FXO interface board; Comprising under the FXS interface board situation, described FXS interface board comprises at least two FXS interfaces, comprising under the above FXS interface board situation, described FXS interface board comprises at least one FXS interface, it is characterized in that, also comprise the corresponding switch switching unit of FXS interface quantity that comprises with described FXS interface board in the described FXS interface board
Described switch switching unit is a relay, the normally opened contact of described FXS interface by relay separately and FXS inter-process circuit separately are connected, described relay is used to control corresponding FXS interface and connects with described corresponding FXS interface inter-process circuit when described FXS interface board powers on, described FXS interface is connected with same FXO interface by the normally-closed contact of relay separately, described relay be used to control the FXS interface when the FXS interface board cuts off the power supply with corresponding FXO interface connection.
4. as power-off survival system as described in the claim 3, it is characterized in that described at least one FXO interface is arranged on the FXO interface board, by idle pin of back plane connector and corresponding FXS interface connection; Or described at least one FXO interface is arranged on the base plate, connects with corresponding FXS interface.
5. power-off escape method, be applied to comprise in the device of at least one FXO FXO interface and at least two FXS FXS interfaces, described FXO interface is connected with public switched telephone network (PSTN) PSTN, described FXS interface is connected with phone or facsimile machine, it is characterized in that, said method comprising the steps of:
Described at least two FXS interfaces are divided into groups;
Make the normally opened contact of FXS interface by corresponding relay and FXS separately the inter-process circuit be connected, be used for controlling FXS interface in the same grouping and when device powers on, be connected with FXS interface inter-process circuit separately respectively;
The FXS interface is connected with same FXO interface by the normally-closed contact of corresponding relay, and the FXS interface FXS interface FXO interface corresponding with this grouping in this grouping when the device outage that is used for controlling in the same grouping connects.
6. as power-off escape method as described in the claim 5, it is characterized in that, the FXO interface that FXS interface in the described same grouping is corresponding with this grouping connects and specifically comprises: the TIP line of FXS interface is connected with the TIP line of FXO interface, and the RING line of FXS interface is connected with the RING line of FXO interface.
7. as power-off escape method as described in the claim 5, it is characterized in that described at least one FXO interface and described at least two FXS interfaces are arranged on the same integrated circuit board; Or described at least one FXO interface is arranged on the FXO interface board, and the FXO interface corresponding with same grouping is connected by back plane connector free time pin with the FXS interface of this same grouping; Or described at least one FXO interface is arranged on the base plate, connects with corresponding FXS interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101641633A CN101141507B (en) | 2007-10-08 | 2007-10-08 | Power-off escape method and apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101641633A CN101141507B (en) | 2007-10-08 | 2007-10-08 | Power-off escape method and apparatus |
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| CN101141507A CN101141507A (en) | 2008-03-12 |
| CN101141507B true CN101141507B (en) | 2010-06-16 |
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| CN2007101641633A Active CN101141507B (en) | 2007-10-08 | 2007-10-08 | Power-off escape method and apparatus |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952666B (en) * | 2014-03-25 | 2017-05-10 | 国基电子（上海）有限公司 | Relay switching circuit |
| CN107302452B (en) * | 2017-06-15 | 2023-08-15 | 深圳市潮流网络技术有限公司 | Control method for PBX service continuity |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1375996A (en) * | 2001-03-16 | 2002-10-23 | 昱源科技股份有限公司 | Telephone exchange system with multiple lifelines |
| CN1427610A (en) * | 2001-12-13 | 2003-07-02 | Lg电子株式会社 | VoDSL integrated connecting apparatus and control method thereof |
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2007
- 2007-10-08 CN CN2007101641633A patent/CN101141507B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1375996A (en) * | 2001-03-16 | 2002-10-23 | 昱源科技股份有限公司 | Telephone exchange system with multiple lifelines |
| CN1427610A (en) * | 2001-12-13 | 2003-07-02 | Lg电子株式会社 | VoDSL integrated connecting apparatus and control method thereof |
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Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee after: Xinhua three Technology Co., Ltd. Address before: 310053 Hangzhou hi tech Industrial Development Zone, Zhejiang province science and Technology Industrial Park, No. 310 and No. six road, HUAWEI, Hangzhou production base Patentee before: Huasan Communication Technology Co., Ltd. |
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