CN202696618U - Modularized network type PHD optical transmitter and receiver - Google Patents
Modularized network type PHD optical transmitter and receiver Download PDFInfo
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- CN202696618U CN202696618U CN 201220399769 CN201220399769U CN202696618U CN 202696618 U CN202696618 U CN 202696618U CN 201220399769 CN201220399769 CN 201220399769 CN 201220399769 U CN201220399769 U CN 201220399769U CN 202696618 U CN202696618 U CN 202696618U
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- amplifilter
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Abstract
The utility model discloses a modularized network type PHD optical transmitter and receiver. The optical transmitter and receiver comprises an optical signal receiving terminal, an optical/electrical converter, an electric signal de-multiplexing module, a D/A converter, an amplifilter and a user receiving terminal, wherein the output end of the optical signal receiving terminal is connected with the input end of the optical/electrical converter, the output end of the optical/electrical converter is connected with the input end of the electric signal de-multiplexing module, the output end of the electric signal de-multiplexing module is connected with the input end of the D/A converter, the output end of the D/A converter is connected with the input end of the amplifilter, the output end of the amplifilter is connected with the user receiving terminal, and an ADPLL phase-locked loop circuit is connected between the amplifilter and the user receiving terminal. The modularized network type PHD optical transmitter and receiver can effectively reduce signal jitter of an E1 interface.
Description
Technical field
The utility model relates to a kind of PDH optical transceiver, is specifically related to a kind of modular network type PDH optical transceiver.
Background technology
Telecommunications network in, use the PDH optical transceiver more.This PDH optical transceiver series has preferably adaptability to traditional point to point link.The bit rate that it is unified, unified interface standard is for interconnected the providing between devices from different manufacturers may.And along with the developing rapidly of digital communication, be the needs that are fit to the Modern Telecommunication business development, and the needs of modernized telecommunication network management, the PDH optical transceiver will constantly improve.Experience the most intuitively for the client is exactly the stability of this network.The PDH optical transceiver offers user's E1 interface, and the reason of shining into its shake has a variety of.And the shake meeting of e1 port signal brings use inconvenience to the user, can allow the user that the provider of network is brought bad impression, directly affects the income of Network Provider.
The utility model content
The utility model has overcome the deficiencies in the prior art, and a kind of PDH optical transceiver is provided, and this PDH optical transceiver can effectively reduce E1 interface signal jitter problem.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of modular network type PDH optical transceiver, it comprises light signal receiving terminal, light/electric transducer, signal of telecommunication demultiplexing, D/A converter, amplifilter and user's receiving terminal; The output of described light signal receiving terminal is connected with the input of light/electric transducer; The output of described light/electric transducer is connected with the input of signal of telecommunication demultiplexing; The output of described signal of telecommunication demultiplexing is connected with the input of D/A converter; The output of described D/A converter is connected with the input of amplifilter; The output of described amplifilter links to each other with user's receiving terminal; Also be connected with an ADPLL phase-locked loop circuit between described amplifilter and the user's receiving terminal.That above-mentioned light/electric transducer adopts is HTB-GM03; That signal of telecommunication demultiplexing adopts is Canadian EVERTZ, is a kind of two-way multiplex/demultiplex module; D/A converter adopts DAC0830; Amplifilter adopts LFC1536.The light signal receiving terminal passes to light/electric transducer to the signal that receives, light/electric transducer is converted to the signal of telecommunication with light signal, again with electrical signal transfer to signal of telecommunication demultiplexing, signal of telecommunication demultiplexing passes to D/A converter with signal, D/A converter changes digital signal to analog signal, integrate through the amplification filtering of amplifilter again, pass to the user.For the signal jitter that the user is received effectively reduces, before user's receiving terminal, connect an ADPLL phase-locked loop circuit.
Further technical scheme is:
Described user's receiving terminal comprises 4 road E1 digital signal interfaces and 1 road 100M Ethernet data interface or RS-232/485 data-interface.This device can improve 4 road E1 and 1 road 100M Ethernet or RS-232/485 data channel, is particularly suitable for video conference monitoring, DDN and extends etc. and both to have needed again occasion that local area network (LAN) is interconnected of TDM passage.
Described ADPLL phase-locked loop circuit is between amplifilter and 4 road E1 digital signal interfaces.
Compared with prior art, the beneficial effects of the utility model are:
1, be connected with an ADPLL phase-locked loop circuit between amplifilter and the user's receiving terminal, the ADPLL phase-locked loop circuit can effectively reduce the information shake of interface, and the shake index is much better than international standard.
2, this device is simple, is convenient to make.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is structure flow chart of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.Execution mode of the present utility model includes but not limited to the following example.
Embodiment
A kind of modular network type PDH optical transceiver as shown in Figure 1, it comprises light signal receiving terminal, light/electric transducer, signal of telecommunication demultiplexing, D/A converter, amplifilter and user's receiving terminal; The output of light signal receiving terminal is connected with the input of light/electric transducer; The output of light/electric transducer is connected with the input of signal of telecommunication demultiplexing; The output of signal of telecommunication demultiplexing is connected with the input of D/A converter; The output of D/A converter is connected with the input of amplifilter; The output of amplifilter links to each other with user's receiving terminal; Also be connected with an ADPLL phase-locked loop circuit between amplifilter and the user's receiving terminal.User's receiving terminal comprises 4 road E1 digital signal interfaces and 1 road 100M Ethernet data interface or RS-232/485 data-interface.The ADPLL phase-locked loop circuit is between amplifilter and 4 road E1 digital signal interfaces.
According to the above embodiments, can well finish the utility model.
Be as mentioned above embodiment of the present utility model.The utility model is not limited to above-mentioned execution mode, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, all fall within the protection range of the present utility model.
Claims (3)
1. modular network type PDH optical transceiver, it is characterized in that: it comprises light signal receiving terminal, light/electric transducer, signal of telecommunication demultiplexing, D/A converter, amplifilter and user's receiving terminal; The output of described light signal receiving terminal is connected with the input of light/electric transducer; The output of described light/electric transducer is connected with the input of signal of telecommunication demultiplexing; The output of described signal of telecommunication demultiplexing is connected with the input of D/A converter; The output of described D/A converter is connected with the input of amplifilter; The output of described amplifilter links to each other with user's receiving terminal; Also be connected with an ADPLL phase-locked loop circuit between described amplifilter and the user's receiving terminal.
2. modular network type PDH optical transceiver according to claim 1, it is characterized in that: described user's receiving terminal comprises 4 road E1 digital signal interfaces and 1 road 100M Ethernet data interface or RS-232/485 data-interface.
3. modular network type PDH optical transceiver according to claim 1 and 2, it is characterized in that: described ADPLL phase-locked loop circuit is between amplifilter and 4 road E1 digital signal interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220399769 CN202696618U (en) | 2012-08-14 | 2012-08-14 | Modularized network type PHD optical transmitter and receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220399769 CN202696618U (en) | 2012-08-14 | 2012-08-14 | Modularized network type PHD optical transmitter and receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202696618U true CN202696618U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220399769 Expired - Fee Related CN202696618U (en) | 2012-08-14 | 2012-08-14 | Modularized network type PHD optical transmitter and receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202696618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595487A (en) * | 2012-08-14 | 2014-02-19 | 成都思迈科技发展有限责任公司 | A modularized network type PDH optical transceiver |
-
2012
- 2012-08-14 CN CN 201220399769 patent/CN202696618U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595487A (en) * | 2012-08-14 | 2014-02-19 | 成都思迈科技发展有限责任公司 | A modularized network type PDH optical transceiver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20130814 |