WO2007007382A1 - Dispositif de communication, et modules de fonction du dispositif de communication - Google Patents

Dispositif de communication, et modules de fonction du dispositif de communication Download PDF

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Publication number
WO2007007382A1
WO2007007382A1 PCT/JP2005/012671 JP2005012671W WO2007007382A1 WO 2007007382 A1 WO2007007382 A1 WO 2007007382A1 JP 2005012671 W JP2005012671 W JP 2005012671W WO 2007007382 A1 WO2007007382 A1 WO 2007007382A1
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WO
WIPO (PCT)
Prior art keywords
function
module
transmission
functional module
reception
Prior art date
Application number
PCT/JP2005/012671
Other languages
English (en)
Japanese (ja)
Inventor
Tetsuji Sato
Takatoshi Yagisawa
Original Assignee
Fujitsu Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Limited filed Critical Fujitsu Limited
Priority to PCT/JP2005/012671 priority Critical patent/WO2007007382A1/fr
Publication of WO2007007382A1 publication Critical patent/WO2007007382A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/40—Transceivers

Definitions

  • the present invention relates to a communication device and a functional module of the communication device, and in particular, a communication device having a configuration in which a plurality of functional modules are mounted in each of a plurality of predetermined accommodating spaces of the same size, and the communication device. Regarding functional modules.
  • XFP Small Form Fac tor Pluggable
  • MSA Multi Source Agrement
  • This XFP module is called a so-called pluggable module, and is a functional module mounted on a communication device having a configuration in which a plurality of functional modules are mounted in each of a plurality of predetermined accommodating spaces having the same dimensions. It was developed as.
  • the 300-pin MSA SFF (Small Form Factor) optical transceiver module is required to be downsized to 1Z6 in size and 1Z3 in power consumption.
  • MSA SFF Small Form Factor
  • Patent Document 1 Japanese Patent Laid-Open No. 5-292040
  • the present invention does not increase the size of a functional module mounted on a communication device having a configuration in which a plurality of functional modules are mounted in each of a plurality of predetermined accommodating spaces having the same dimensions. It is an object of the present invention to provide a configuration of a communication device and a function module of the communication device capable of improving characteristics.
  • the reception function in one functional module has a reception performance for a signal from a predetermined distance, while the transmission function has a transmission performance for a predetermined neighborhood, and the reception function in the other functional module has Is configured to have a reception performance for signals from a predetermined neighborhood, while its transmission function has a transmission performance for a predetermined distance.
  • the communication signal received by the external force is received by one functional module, while the signal processed by the transmission function of the one functional module is once attached to the same communication device.
  • the signal processed by the reception function of another functional module and processed by the reception function of the other functional module is processed by the transmission function of the other functional module, and then the signal processed by the transmission function is transmitted as a communication signal. To the outside.
  • one functional module requires reception performance for receiving and processing communication signals received from an external force, but transmits it to other functional modules mounted on the same communication device. Only transmission performance is required. As a result, the size of the device for the transmission function can be effectively reduced in the one function module. As a result, it is possible to provide a device with a large size and high performance as a device for the reception function.
  • the other functional modules need only receive performance to receive one functional module power signal mounted on the same communication device, while relatively high-performance transmission performance to transmit to the outside Is required. For this reason, in the other function module, the size of the device for the reception function can be effectively reduced. As a result, it is possible to provide a device with a large size and high performance as a device for the transmission function.
  • the reception performance of the entire communication device without increasing each predetermined external dimension by combining the one functional module and the other functional module.
  • FIG. 1 is a block diagram of a communication module according to an embodiment of the present invention.
  • FIG. 2 is a hardware layout diagram and a functional block diagram of a reception function module among the communication modules shown in FIG. 1.
  • FIG. 3 is a hardware arrangement diagram and a functional block diagram of a transmission function module among the communication modules shown in FIG. 1.
  • FIG. 4 is a hardware layout diagram of the communication module shown in FIG.
  • a transmission function special module and a reception function special module are provided as pluggable modules each having a size in accordance with the XFP standard.
  • an LN (LN: LiNb03) modulator or the like is applied as an optical modulator to the transmission unit.
  • LN LiNb03
  • a configuration with improved reception sensitivity is applied to the reception unit.
  • each of the transmission function module and the reception function module has a configuration in which the transmission / reception unit is integrated. Therefore, in order to improve the performance, it is necessary to solve the problem of crosstalk between the transmission / reception units. There is.
  • each module the transmission characteristics and Z or reception characteristics of the entire communication device are improved while keeping the small shape of the module, so that transmission functions with individually improved transmission characteristics are provided.
  • a special function module and a reception function with individually improved reception characteristics A special function module is provided to connect the two modules.
  • each of the receiver and the receiver is increased in size and cannot be accommodated in one casing having a predetermined size.
  • a pluggable module (the transmission function characteristic module described above) provided with a transmission unit and a circuit size force, or a reception unit having normal characteristics, for improving the performance as described above.
  • a pluggable module (the above receiving function special module) provided with a receiving unit for improving the characteristics and a transmitting unit with a small circuit size and a small noise.
  • the transmission function specific module having a transmission unit that generates a larger amplitude signal and the reception function specific module with improved reception sensitivity are made separate modules, both are included in the same module. Compared to the case, advanced measures against crosstalk are not required.
  • the communication device employs a pluggable module having an outer dimension conforming to the XFP standard.
  • FIG. 1 is a block diagram of a communication module 100 according to an embodiment of the present invention.
  • the communication module 100 is roughly composed of a Bragabno module module Ml and a Pragab module module M2 each having external dimensions in accordance with the XFP standard.
  • the pluggable module Ml corresponds to the above-mentioned reception function module
  • the pluggable module M2 corresponds to the above-mentioned transmission function module.
  • the modules Ml and M2 are inserted into slots SL 1 and SL2 that conform to the XFP standard provided in the communication module 100.
  • Each of these pluggable modules Ml and M2 includes a receiving unit 10 that converts a received optical signal into an electric signal, and a transmitting unit 20 that converts a given electric signal into an optical transmission signal.
  • each of the pluggable modules Ml and M2 performs a necessary signal processing on the electric signal obtained by the receiving unit 10 and provides it as a received signal to the user side, and a transmission given from the user side.
  • a signal processing unit 30 having a function of generating a signal for driving the transmission unit 20 by performing necessary signal processing on the signal is provided.
  • the transmission signal converted into the electric signal by the receiving unit 10 is directly coupled to the transmitting unit 20 via the signal processing unit 30, so that the function related to signal exchange with the user side is unnecessary. It is.
  • the communication module 100 has signal terminals Rl, SI, R2, S2, R3, S3.
  • the optical signal transmitted for a predetermined long distance via the optical fiber L1 is coupled to the receiving unit 10 of the module M1 at the receiving terminal R1.
  • the reception signal converted into an electric signal by the receiving unit 10 and subjected to the required signal processing by the signal processing unit 30 is coupled to a user-side signal processing module (not shown) via a terminal R3.
  • the transmission signal given from the signal processing module on the user side is coupled to the signal processing unit 30 of the same module M1 via the terminal S3.
  • the transmission signal subjected to the required signal processing in the signal processing unit 30 is coupled to the transmission unit 20 in the same module Ml.
  • the transmitted signal is After being converted into an optical signal, the module M2 installed in the nearby slot SL2 that forms the same communication module 100 directly from the transmission terminal SI through the optical fiber L2 and directly through the reception terminal R2 is received. Combined with part 10.
  • the transmission signal converted into the electrical signal by the receiving unit 10 of the module M2 is subjected to the required signal processing by the signal processing unit 30 in the same module M2, and then the transmission unit 20 in the same module M2. Combined.
  • the transmission unit 20 converts the transmission signal into an optical transmission signal again.
  • the optical transmission signal is coupled to the transmission optical fiber L3 via the transmission terminal S2 and used for transmission over a predetermined long distance.
  • FIG. 2 is a hardware layout diagram of the module Ml as the reception function specific module.
  • the receiving unit 10 of the module Ml includes an APD 11 and an LIA 12, and the transmitting unit 20 includes a direct modulation LD 22 and a small amplitude LD driver 21 that drives the modulation LD 22.
  • the signal processing unit 30 has a CDR (Clock and Data Recovery) function.
  • Module Ml uses an APD to improve reception sensitivity in order to process optical reception signals transmitted over long distances.
  • the transmission unit 20 since the optical signal transmitted from the module Ml is directly coupled to the nearby module M2, as described above, it is almost unnecessary to consider the transmission distance. For this reason, small direct modulation circuits 21 and 22 that can be operated with small amplitude are used for the purpose of minimizing crosstalk to the receiver 10 in the same module Ml.
  • FIG. 3 is a hardware layout diagram of the module M2 as the transmission function specific module.
  • the receiving unit 10 of the module M2 includes a PIN PD 15, and the transmitting unit 20 includes a direct modulation LD built-in LN 26 and a driver 25 for driving the LN 26.
  • the size of the receiving unit 10 needs to be as small as possible. As described above, it is only necessary to be able to receive an optical transmission signal transmitted from a nearby module Ml. Therefore, it is possible to apply a small and simple circuit that does not need to have a high reception sensitivity characteristic.
  • the transmission signal converted into an electric signal by the receiving unit 10 in the module M2 is folded as it is without being supplied to the outside and coupled to the transmitting unit 20.
  • the receiving unit 10 can be miniaturized by applying PIN PD having a small circuit scale.
  • transmission characteristics can be improved by applying LN 26 with a built-in modulation LD directly to the transmitter 20, and wavelength division multiplexing transmission by conversion of the transmission wavelength becomes possible by applying a LD that can be modulated.
  • FIG. 4 is a hardware layout diagram of the communication module 100 described above.
  • the modules Ml and M2 are inserted and mounted in the adjacent slots SL1 and SL2, respectively, and the equipment side terminals of the modules Ml and M2 are ports PI and P2 provided in the respective slots SL1 and SL2. Connected to.
  • the port P1 of the slot SL1 is used in a mode for a normal pluggable module.
  • the output terminal of the inserted module Ml is connected to the external terminal R3 via this port P1 and supplied to the user side module (not shown).
  • the external terminal S3 which receives a signal given from the user side module is coupled to the input terminal of the module Ml.
  • module M2 is a module having only a relay function as described above, so there is no transmission / reception of communication signals with the device side. Therefore, only the power supply terminals and control terminals necessary for the operation of module M2 are used here.
  • the optical fiber L2 for coupling the optical signal between the modules Ml and M2 may be of a length that allows wiring between the adjacent slots SL1 and S12.
  • the transmission function module M2 has a configuration in which only the relay function is provided. It is also possible to configure the reception function module Ml to have only a relay function and to send and receive signals to / from the user module via the signal processing unit 30 of the transmission function module M2. is there.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

Le dispositif de communication selon l’invention comporte une structure dans laquelle une pluralité de modules de fonction sont placés dans chacun d’une pluralité prédéterminée d’emplacements adaptés présentant tous les mêmes dimensions. La pluralité de modules de fonction comprend un premier module de fonction et un autre module de fonction. Chacun des modules de fonction présente des fonctions de réception et de transmission prédéterminées. La fonction de réception du premier module de fonction est capable de recevoir un signal provenant d’une distance prédéterminée, tandis que la fonction de transmission du premier module de fonction est capable de transmettre un signal dans un voisinage prédéterminé. La fonction de réception de l’autre module de fonction est capable de recevoir un signal provenant d'un voisinage prédéterminé, tandis que la fonction de transmission de l'autre module de fonction est capable de transmettre un signal à une distance prédéterminée.
PCT/JP2005/012671 2005-07-08 2005-07-08 Dispositif de communication, et modules de fonction du dispositif de communication WO2007007382A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/012671 WO2007007382A1 (fr) 2005-07-08 2005-07-08 Dispositif de communication, et modules de fonction du dispositif de communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/012671 WO2007007382A1 (fr) 2005-07-08 2005-07-08 Dispositif de communication, et modules de fonction du dispositif de communication

Publications (1)

Publication Number Publication Date
WO2007007382A1 true WO2007007382A1 (fr) 2007-01-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/012671 WO2007007382A1 (fr) 2005-07-08 2005-07-08 Dispositif de communication, et modules de fonction du dispositif de communication

Country Status (1)

Country Link
WO (1) WO2007007382A1 (fr)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"The XFP MSA Group, Ratified XFP MSA Public Release 3.1.", 2 April 2003 (2003-04-02), pages 88 - 97, XP002991717 *

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