CN102055631A - Remote dispatching desk access method based on PCM (pulse code modulation) - Google Patents
Remote dispatching desk access method based on PCM (pulse code modulation) Download PDFInfo
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- CN102055631A CN102055631A CN 201010617134 CN201010617134A CN102055631A CN 102055631 A CN102055631 A CN 102055631A CN 201010617134 CN201010617134 CN 201010617134 CN 201010617134 A CN201010617134 A CN 201010617134A CN 102055631 A CN102055631 A CN 102055631A
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Abstract
The invention discloses a long-distance dispatching desk access method based on PCM (pulse code modulation) in the technical filed of communication. The method comprises the following steps: adding a first PCM transmission device and a second PCM transmission device respectively at two sides of a first switcher and a second switcher; connecting two B passages and a D passage on the U interface of the first switcher to a time slot corresponding to the E1 interface of the first PCM transmission device; connecting two B passages and a D passage on the U interface of the second switcher to a time slot corresponding to the E1 interface of the second PCM transmission device; and connecting the first PCM transmission device and the second PCM transmission device through an E1 circuit. In the invention, the switcher is connected through the E1 circuit instead of an ISDN (integrated services digital network) circuit, the transmission distance is increased, and the long-distance dispatching capability of the long-distance dispatching desk is improved.
Description
Technical field
The invention belongs to communication technical field, relate in particular to a kind of remote scheduling platform cut-in method based on PCM.
Background technology
The remote scheduling platform is to be deployed in the strange land but ownership place is local dispatching desk.Fig. 1 is the remote scheduling platform connection diagram of using always, and among Fig. 1, remote scheduling platform commonly used is connected into switch by u interface, and generally connects by ISDN between the switch, so its transmission range is restricted.
PCM (Pulse Code Modulatio, pulse code modulation) technology be a time continuous, the value continuous analog signal is transformed into a kind of technology of transmitting after time discrete, the value discrete digital signal in channel.Pulse code modulation be one to analog signal sampling earlier, again to the process of sample value amplitude quantizing, coding.In China, PCM adopts the E1 standard, carries out asymmetric or symmetrical transmission by 75 Ω coaxial cables or 120 Ω twisted-pair feeders, the E1 circuit transmission that promptly is commonly called as.The E1 circuit is divided into 32 time slots, and each time slot is 64k/s, and 32 time slots transmit data simultaneously, so the speed of E1 circuit is 2.048M/s.After the formation digital signal, by the transmission of E1 circuit, so its transmission range is greatly improved because the PCM technology is encoded analog signal.In addition, each time slot of E1 circuit is 64k/s, and each the B passage in the 2B+D passage of ISDN is 64k/s, and the D passage is 16k/s, so the time slot of E1 can carry the B passage of ISDN and the flow of D passage fully.For these reasons, realize long-distance transmissions, can consider to use the farther circuit E1 of transmission range to realize the connection of switch in order to make dispatching desk.
Summary of the invention
The objective of the invention is to, at the switch use ISDN connection of remote scheduling platform commonly used, the problem that its transmission range is limited proposes a kind of remote scheduling platform cut-in method based on PCM, in order to improve the transmission range of remote scheduling platform.
Technical scheme is that a kind of remote scheduling platform cut-in method based on PCM is characterized in that described method comprises the following steps:
Step 1: increase a PCM transmission equipment and the 2nd PCM transmission equipment at first switch and the second switch both sides respectively;
Step 2: 2 B passages on the first switch u interface and 1 D passage are routed on the corresponding time slot of E1 interface of a PCM transmission equipment;
Step 3: 2 B passages on the second switch u interface and 1 D passage are routed on the corresponding time slot of E1 interface of the 2nd PCM transmission equipment;
Step 4:, connect a PCM transmission equipment and the 2nd PCM transmission equipment by the E1 circuit.
On the corresponding time slot of the described E1 interface that 2 B passages on the first switch u interface and 1 D passage is routed to a PCM transmission equipment, adopt the mode of semi-fixing continuing.
On the corresponding time slot of the described E1 interface that 2 B passages on the second switch u interface and 1 D passage is routed to the 2nd PCM transmission equipment, adopt the mode of semi-fixing continuing.
On the corresponding time slot of the described E1 interface that 2 B passages on the first switch u interface and 1 D passage is routed to a PCM transmission equipment, specifically be that 2 B passages and 1 D passage are routed to respectively on any 1 time slot of E1 interface of a PCM transmission equipment, perhaps according to setting on the setting time slot of E1 interface that rule is routed to 2 B passages and 1 D passage respectively the one PCM transmission equipment.
On the corresponding time slot of the described E1 interface that 2 B passages on the second switch u interface and 1 D passage is routed to the 2nd PCM transmission equipment, specifically be that 2 B passages and 1 D passage are routed to respectively on any 1 time slot of E1 interface of the 2nd PCM transmission equipment, perhaps according to setting on the setting time slot of E1 interface that rule is routed to 2 B passages and 1 D passage respectively the 2nd PCM transmission equipment.
Effect of the present invention is, uses the E1 circuit to replace isdn line to connect switch, has increased transmission range, has improved the remote dispatching of remote scheduling platform.
Description of drawings
Fig. 1 is the remote scheduling platform connection diagram of using always;
The remote scheduling platform that Fig. 2 is based on PCM inserts schematic diagram;
Fig. 3 is first switch and a PCM transmission equipment connection diagram;
Fig. 4 is second switch and the 2nd PCM transmission equipment connection diagram.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment is elaborated.Should be emphasized that following explanation only is exemplary, rather than in order to limit the scope of the invention and to use.
Embodiment
The remote scheduling platform that Fig. 2 is based on PCM inserts schematic diagram.Among Fig. 2, the remote scheduling platform cut-in method based on PCM provided by the invention comprises the following steps:
Step 1: increase a PCM transmission equipment and the 2nd PCM transmission equipment at first switch and the second switch both sides respectively.
Step 2: 2 B passages on the first switch u interface and 1 D passage are routed on the corresponding time slot of E1 interface of a PCM transmission equipment.
Step 3: 2 B passages on the second switch u interface and 1 D passage are routed on the corresponding time slot of E1 interface of the 2nd PCM transmission equipment.
Step 4:, connect a PCM transmission equipment and the 2nd PCM transmission equipment by the E1 circuit.
Wherein, 2 B passages on the first switch u interface and 1 D passage are routed on the corresponding time slot of E1 interface of a PCM transmission equipment, adopt the mode of semi-fixing continuing.2 B passages on the second switch u interface and 1 D passage are routed on the corresponding time slot of E1 interface of the 2nd PCM transmission equipment, also adopt the mode of semi-fixing continuing.
Fig. 3 is first switch and a PCM transmission equipment connection diagram.2 B passages on the first switch u interface and 1 D passage are routed on the corresponding time slot of E1 interface of a PCM transmission equipment, specifically be that 2 B passages and 1 D passage are routed to respectively on any 1 time slot of E1 interface of a PCM transmission equipment, perhaps according to setting on the setting time slot of E1 interface that rule is routed to 2 B passages and 1 D passage respectively the one PCM transmission equipment.As Fig. 3,2 B passages and 1 D passage on the first switch u interface are routed on time slot 1, time slot 2 and the time slot 3 of the E1 interface of a PCM transmission equipment respectively.Also can set rule, set time slot 1, time slot 2 and time slot 3 and be respectively and B passage and the channel attached setting time slot of D, 2 B passages and 1 D passage on the first switch u interface are routed to respectively on time slot 1, time slot 2 and the time slot 3.
Fig. 4 is second switch and the 2nd PCM transmission equipment connection diagram.2 B passages on the second switch u interface and 1 D passage are routed on the corresponding time slot of E1 interface of the 2nd PCM transmission equipment, specifically be that 2 B passages and 1 D passage are routed to respectively on any 1 time slot of E1 interface of the 2nd PCM transmission equipment, perhaps according to setting on the setting time slot of E1 interface that rule is routed to 2 B passages and 1 D passage respectively the 2nd PCM transmission equipment.In Fig. 4,2 B passages and 1 D passage on the second switch u interface are routed on time slot 1, time slot 2 and the time slot 3 of the E1 interface of the 2nd PCM transmission equipment respectively.Also can set rule, set time slot 1, time slot 2 and time slot 3 and be respectively and B passage and the channel attached setting time slot of D, 2 B passages and 1 D passage on the first switch u interface are routed to respectively on time slot 1, time slot 2 and the time slot 3.
By increase the PCM transmission equipment that can use the transmission of E1 circuit in the switch both sides, make the switch of remote scheduling platform insert the PCM transmission equipment earlier, use the farther E1 circuit of transmission range to transmit then, overcome the distance limit of using the isdn line transmission.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (5)
1. the remote scheduling platform cut-in method based on PCM is characterized in that described method comprises the following steps:
Step 1: increase a PCM transmission equipment and the 2nd PCM transmission equipment at first switch and the second switch both sides respectively;
Step 2: 2 B passages on the first switch u interface and 1 D passage are routed on the corresponding time slot of E1 interface of a PCM transmission equipment;
Step 3: 2 B passages on the second switch u interface and 1 D passage are routed on the corresponding time slot of E1 interface of the 2nd PCM transmission equipment;
Step 4:, connect a PCM transmission equipment and the 2nd PCM transmission equipment by the E1 circuit.
2. a kind of remote scheduling platform cut-in method according to claim 1 based on PCM, it is characterized in that adopting the mode of semi-fixing continuing on the corresponding time slot of the described E1 interface that 2 B passages on the first switch u interface and 1 D passage is routed to a PCM transmission equipment.
3. a kind of remote scheduling platform cut-in method according to claim 1 based on PCM, it is characterized in that adopting the mode of semi-fixing continuing on the corresponding time slot of the described E1 interface that 2 B passages on the second switch u interface and 1 D passage is routed to the 2nd PCM transmission equipment.
4. a kind of remote scheduling platform cut-in method according to claim 1 based on PCM, it is characterized in that on the corresponding time slot of the described E1 interface that 2 B passages on the first switch u interface and 1 D passage is routed to a PCM transmission equipment, specifically be that 2 B passages and 1 D passage are routed to respectively on any 1 time slot of E1 interface of a PCM transmission equipment, perhaps according to setting on the setting time slot of E1 interface that rule is routed to 2 B passages and 1 D passage respectively the one PCM transmission equipment.
5. a kind of remote scheduling platform cut-in method according to claim 1 based on PCM, it is characterized in that on the corresponding time slot of the described E1 interface that 2 B passages on the second switch u interface and 1 D passage is routed to the 2nd PCM transmission equipment, specifically be that 2 B passages and 1 D passage are routed to respectively on any 1 time slot of E1 interface of the 2nd PCM transmission equipment, perhaps according to setting on the setting time slot of E1 interface that rule is routed to 2 B passages and 1 D passage respectively the 2nd PCM transmission equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010617134 CN102055631A (en) | 2010-12-30 | 2010-12-30 | Remote dispatching desk access method based on PCM (pulse code modulation) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010617134 CN102055631A (en) | 2010-12-30 | 2010-12-30 | Remote dispatching desk access method based on PCM (pulse code modulation) |
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| CN102055631A true CN102055631A (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010617134 Pending CN102055631A (en) | 2010-12-30 | 2010-12-30 | Remote dispatching desk access method based on PCM (pulse code modulation) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103327149A (en) * | 2013-07-08 | 2013-09-25 | 上海市共进通信技术有限公司 | Method for realizing anomaly detection of PCM (Pulse Code Modulation) channel in VoIP (Voice over Internet Protocol) network terminal equipment |
| CN110225211A (en) * | 2019-05-07 | 2019-09-10 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | Multichannel pulse modified modulating voice exchange system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1822615A (en) * | 2006-01-24 | 2006-08-23 | 北京佳讯飞鸿电气有限责任公司 | Multimedia dispatching device |
| CN101141524A (en) * | 2007-09-30 | 2008-03-12 | 中兴通讯股份有限公司 | Method of providing stationary tone in access equipment |
| CN101557544A (en) * | 2009-05-18 | 2009-10-14 | 北京佳讯飞鸿电气股份有限公司 | Module connecting 2B+D scheduling desks by E1 line and method |
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2010
- 2010-12-30 CN CN 201010617134 patent/CN102055631A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1822615A (en) * | 2006-01-24 | 2006-08-23 | 北京佳讯飞鸿电气有限责任公司 | Multimedia dispatching device |
| CN101141524A (en) * | 2007-09-30 | 2008-03-12 | 中兴通讯股份有限公司 | Method of providing stationary tone in access equipment |
| CN101557544A (en) * | 2009-05-18 | 2009-10-14 | 北京佳讯飞鸿电气股份有限公司 | Module connecting 2B+D scheduling desks by E1 line and method |
Non-Patent Citations (1)
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| 《电力***通信》 20070630 李峻 市级电力调度交换网的组建方案 第28卷, 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103327149A (en) * | 2013-07-08 | 2013-09-25 | 上海市共进通信技术有限公司 | Method for realizing anomaly detection of PCM (Pulse Code Modulation) channel in VoIP (Voice over Internet Protocol) network terminal equipment |
| CN110225211A (en) * | 2019-05-07 | 2019-09-10 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | Multichannel pulse modified modulating voice exchange system and method |
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Application publication date: 20110511 |