CN201393220Y - Novel long-distance 40G QSFP communication active copper-cable component - Google Patents

Novel long-distance 40G QSFP communication active copper-cable component Download PDF

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Publication number
CN201393220Y
CN201393220Y CN200920035506U CN200920035506U CN201393220Y CN 201393220 Y CN201393220 Y CN 201393220Y CN 200920035506 U CN200920035506 U CN 200920035506U CN 200920035506 U CN200920035506 U CN 200920035506U CN 201393220 Y CN201393220 Y CN 201393220Y
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communication
signal
unit
copper cable
qsfp
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Expired - Fee Related
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CN200920035506U
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周新军
高海兵
施高鸿
刘圣
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Innolight Technology Suzhou Ltd
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Innolight Technology Suzhou Ltd
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Abstract

The utility model relates to a long-distance 40G QSFP communication active copper-cable component, which consists of two electrical transmission modules and a 15m of high-frequency communication copper cable, wherein each two electrical transmission module comprises a power supply unit, a digital diagnosis and communication unit, a signal transmission unit, a signal receiving unit and a 38PIN interface unit; the digital diagnosis and communication unit is connected with the signal transmission unit and the signal receiving unit; the power supply unit supplies working power; the digital diagnosis and communication unit is communicated with an external system; the signal transmission unit receives the signal of the external system, and after being processed, the signal is sent to the high-frequency communication copper cable; the signal receiving unit receives the signal of the high-frequency communication copper cable, and after being processed, the signal is transmitted to the external system; the 38PIN interface unit is connected with the internal electrical transmission modules and the external system; and the high-frequency communication copper cable is connected with the two electrical transmission modules. The long-distance 40G QSFP communication active copper-cable component can overcome the high-frequency actuation characteristic of the copper cable, realizes the 15m of full-duplex transmissions for four pairs of 10G signal, can be used for high performance computing and used in a data center and other occasions.

Description

A kind of novel length is apart from 40G QSFP communication active copper cable assembly
Technical field
The utility model relates to a kind of length apart from 40G QSFP communication active copper cable assembly, belongs to communication technical field.
Background technology
Along with the development of communication network technology, the advantage of big capacity, two-forty is widely used and popularizes, and the rapid increase of broadband services is especially in recent years had higher requirement to the capacity and the closeness of network system equipment.Because the area of system equipment machinery panel is limited, the quantity of module connecting line is restricted, and at the SFP+ joint of the standard of use, the port number that can hold is subjected to the restriction of physical space.
A lot of abroad companies all begin to research and develop QSFP 40G communication active copper cable assembly, but it is short-range mostly, generally is no more than 10 meters, in longer distance owing to Optical Fiber Transmission has been adopted in the decay of copper cable.
In order to solve the contradiction in speed and space, be badly in need of a kind of length of design apart from 40G QSFP communication active copper cable assembly, can realize the long Distance Transmission of full duplex of parallel four road 10G signals, and have the numerical diagnostic function, can monitor link.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of low cost, low-power consumption, small size 40G QSFP communication active copper cable assembly are provided, and satisfies the demand of high density, little encapsulation, high rate communication.
The purpose of this utility model is achieved through the following technical solutions:
A kind of novel length is apart from 40G QSFP communication active copper cable assembly, characteristics are: described communication active copper cable assembly is made up of the HF communication copper cable of two electrical transmission module and long 15 meters, described electrical transmission module comprises power supply unit, numerical diagnostic and communication unit, signal transmitting unit, signal receiving unit, 38PIN interface unit
Described power supply unit extracts power supply from the 38PIN interface unit and offers numerical diagnostic and communication unit, signal transmitting unit and signal receiving unit;
Described numerical diagnostic and communication unit, the operating state of monitoring electrical transmission module also receives external system information, and I2C communicates by letter with external system;
Described signal transmitting unit from the signal of 38PIN interface unit reception external system, sends to the HF communication copper cable to signal amplification, preemphasis processing;
Described signal receiving unit receives the signal of HF communication copper cable, and to signal data recover, balanced, postemphasis, amplify, signal is transferred to external system by the 38PIN interface unit;
Described 38PIN interface unit connects internal electrical transport module and external system;
Described HF communication copper cable connects two electrical transmission module, 4 pairs of 10G signals of parallel transmission;
Wherein: described numerical diagnostic is connected the state of pilot signal transmitting element with communication unit with signal transmitting unit, signal receiving unit.
Further, above-mentioned a kind of novel length is apart from 40G QSFP communication active copper cable assembly, described numerical diagnostic and communication unit comprise processor, external memory storage, communication module, unlatching or reset signal and send and the receiving element circuit, and external memory storage is deposited and the register information of signal receiving unit and signal transmitting unit and the state information that communication link is monitored; The signal of communication module output I2C form is communicated by letter with external system; The state information of processor pilot signal transmitting element and signal receiving unit, and store, with external device communication; Open or reset signal transmission and receiving element circuit, by the state of processor control signal transmitting element and signal receiving unit.
Further, above-mentioned a kind of novel length is apart from 40G QSFP communication active copper cable assembly, and described signal transmitting unit and signal receiving unit are formed by a clock and data recovery chip and a peripheral circuit that independently has four tunnel high frequency difference frequency sub-signals.
Again further, above-mentioned a kind of novel length is apart from 40G QSFP communication active copper cable assembly, and described 38PIN interface unit is the 38PIN golden finger interface of QSFP agreement regulation.
The substantive distinguishing features of technical solutions of the utility model and progressive being mainly reflected in:
1. the utility model overcomes the characteristic of the high frequency attenuation of copper cable, realizes 15 meters full duplex transmission of four pairs of 10G signals; And general traditional HF communication copper cable assembly can only transmit 3～5 meters distance, in case surpass 5 meters, all adopts optical module;
2. two electrical transmission module volumes are little, and only big by 30% than common SFP+ module, communication active copper cable module dissipation is very low, less than 1.2W;
3. all electrical properties of active copper cable assembly and communication interface satisfy the requirement of QSFP standard SFF-8436 multi-source agreement to the QSFP copper cable fully, and be hot-swappable, the consensus standard SFF-8431 of the compatible SFP+ of electrical property;
4. owing to copper cable transmission, with respect to the SFP+ module that industry is used, saved light emission component and optical fiber receive module, and light transmits and receives the assembly cost and accounts for about 50% of SFP+ total cost, thereby saves cost greatly;
5. this 40G QSFP active communication copper cable assembly have that volume is little, hot-swappable, low in energy consumption, stable performance, transmission rate advantages of higher, its cost is more much lower than four pairs of 10G SFP+ modules, and transmission range is longer; Can be widely used in occasions such as ten thousand mbit ethernets, Infiniband, data center, high-performance calculation and big capacity storage.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1: the functional block diagram of the utility model communication active copper cable assembly;
Fig. 2: the utility model communication active copper cable assembly and external system communicate to connect block diagram.
The implication of each Reference numeral sees the following form among the figure:
Reference numeral Implication Reference numeral Implication Reference numeral Implication
1 Power supply unit 2 Numerical diagnostic and communication unit 3 Signal transmitting unit
Reference numeral Implication Reference numeral Implication Reference numeral Implication
4 Signal receiving unit 5 The 38PIN interface unit 6 The HF communication copper cable
7 Communication interface 8 The external system connector
Embodiment
Long design apart from 40G QSFP communication active copper cable assembly can reduce system power dissipation, saves cost, reduces volume, realizes 15 meters transmission of copper cable, and is significant for the development of high-speed communicating network.
As shown in Figure 1, novel length is apart from 40G QSFP communication active copper cable assembly, HF communication copper cable by two electrical transmission module and one long 15 meters is formed, electrical transmission module comprises power supply unit 1, numerical diagnostic and communication unit 2, signal transmitting unit 3, signal receiving unit 4,38PIN interface unit 5, numerical diagnostic is connected the state of pilot signal transmitting element with communication unit 2 with signal transmitting unit 3, signal receiving unit 4.Power supply unit 1 provides the power supply and the voltage monitoring of electrical interface module inside chip, extracts power supplys from 38PIN interface unit 5 and offers numerical diagnostic and communication unit 2, signal transmitting unit 3 and signal receiving unit 4.Numerical diagnostic and communication unit 2, be used to monitor link transmission state and with communicate with external system, the operating state of monitoring electrical transmission module also receives external system information, I2C communicates by letter with external system.Signal transmitting unit 3 receives the 10G high-frequency signal of external systems from 38PIN interface unit 5, to four the tunnel independently differential signal amplify carrying out clock synchronization and signal equalization, be sent to HF communication copper cable 6 then.Signal receiving unit 4 receives the signal of HF communication copper cable 6, through module carry out that signal postemphasises, Clock Extraction and synchronously, signal equalization amplifies, and then signal is transferred to external system by 38PIN interface unit 5.38PIN interface unit 5 connects internal electrical transport module and external system, is the communication interface mode of QSFP standard agreement requirement.HF communication copper cable 6 connects two electrical transmission module, and transmission range is 15 meters, can be to 4 groups of 10G differential signal full duplex transmission.
During specific design, power supply unit 1 sends signal end power supply and received signal end power supply by obtaining from the 38PIN interface unit, by electric power management circuit, opens the power supply that is sent to numerical diagnostic and communication unit 2, signal transmitting unit 3, signal receiving unit 4.
Numerical diagnostic and communication unit 2 comprise very fast processor, external memory storage, communication module, unlatching or a reset signal of the speed of service and send and the receiving element circuit, and external memory storage is used to deposit monitor state information; The signal of communication module output I2C form is communicated by letter with external system; Processor is used for that signal is sent receiving element and carries out condition monitoring, and control signal receives, the unlatching of transmitting element; And the state of link transmission sent to external host, and receive the instruction of control transmission state from main frame; Open or reset signal sends and the receiving element circuit is made up of the power reset chip, the state of two transmission units is resetted and initialization, by the state of processor control signal transmitting element and signal receiving unit.
Signal transmitting unit 3 and signal receiving unit 4 have all adopted speed to reach 40G, and the Clock Extraction of high efficiency, low-power consumption, data are postemphasised and balanced chip, the loss of compensating signal in the high frequency copper cable; The transfer function of its realization is equivalent to the electric oral instructions transmission function of 4 pairs of SFP+ optical modules, according to SFP+ agreement regulation, the power consumption of each SFP+ is less than 1W, so 8 should be less than 8W, but its power consumption of module in utility model is 1.2W, is far smaller than the requirement of the 8W of 8 SFP+.Realize 15 meters long Distance Transmission, when signal input signal receiving element, signal is adjusted the rising edge of assembly amplifying signal to increase slope, carries out the preemphasis clock synchronization, to offset the decay of signal transmission in the HF communication copper cable; Carry out signal at signal receiving end and recover, clock synchronization is postemphasised, the balanced amplification to reduce distorted signals and the decay in reflection and the compensation transmission link, to reach the purpose of long-distance transmissions.
38PIN interface unit 5 is the 38PIN golden finger interface of QSFP agreement regulation, processor is set up communication link by communication interface and peripheral control unit equipment, conversion between the control command of realization outer computer or controller and the command format that the internal circuit chip can be discerned and the differential signal that receives four tunnel full duplex 10G that will transmit from external equipment.
HF communication copper cable 6 is used to carry out link transmission, employing be that high frequency is multi-thread to copper cable, its differential impedance is strict controlled in 100 Ω, and is low cross-talk, low decay, low time delay, with the electric module of transmission by being welded to connect.
The utility model length can be used for occasions such as ten thousand mbit ethernets, Infiniband, data center, high-performance calculation and big capacity storage apart from 40G QSFP communication active copper cable assembly.General traditional HF communication copper cable assembly can only transmit 3～5 meters distance, in case surpass 5 meters, all adopt optical module, and the utility model overcomes the characteristic of the high frequency attenuation of copper cable, realizes 15 meters full duplex transmission of four pairs of 10G signals.Two electrical transmission module volumes are little, and only big by 30% than common SFP+ module, communication active copper cable module dissipation is very low, less than 1.2W.All electrical properties of active copper cable assembly and communication interface can satisfy the requirement of the QSFP standard SFF-8436 multi-source agreement (SFF-8436Specification for QSFP COPPER AND OPTICAL TRANSCERIVERS) of in August, 2008 publication to the QSFP copper cable fully, hot-swappable, the consensus standard SFF-8431 of the compatible SFP+ of electrical property.Owing to copper cable transmission, with respect to the SFP+ module that industry is used, saved light emission component and optical fiber receive module, and light transmits and receives the assembly cost and accounts for about 50% of SFP+ total cost, can save cost greatly.
The utility model communication active copper cable assembly application such as Fig. 2 in communication equipment, for heat pluggable, the golden finger interface of the QSFP by copper cable two, directly and the CONNECTOR in the main frame be connected; Signal transmitting unit 3, signal receiving unit 4, numerical diagnostic and communication unit 2 all are connected with external system connector 8 by communication interface 7 with power supply unit 1.Can transmit the high-frequency signal that main frame sends and can realize that main frame monitors the state in the transmission link.
The requirement of the main electrical characteristics accord with Q SFP multi-source agreement regulation that this communication active copper cable assembly sends and receives four tunnel independence difference 10G signals, table 1 are QSFP agreement and the utility model high-frequency signal performance contrast tabulation.
Table 1
Figure G2009200355060D00071
In sum, adopted the data of high efficiency low-power consumption to send and recovery component, the real-time digital diagnosis, I2C communication at a high speed, succinct circuit design makes this QSFP 40G active communication copper cable assembly have that volume is little, hot-swappable, low in energy consumption, stable performance, the transmission rate advantages of higher; Compare with four pairs of 10G SFP+ modules, saved cost especially, and transmission range is longer.
What need understand is: above-mentioned explanation is not to be to restriction of the present utility model, and in the utility model design scope, the interpolation of being carried out, conversion, replacement etc. also should belong to protection range of the present utility model.

Claims (4)

1. a novel length is apart from 40G QSFP communication active copper cable assembly, it is characterized in that: described communication active copper cable assembly is made up of the HF communication copper cable of two electrical transmission module and long 15 meters, described electrical transmission module comprises power supply unit (1), numerical diagnostic and communication unit (2), signal transmitting unit (3), signal receiving unit (4), 38PIN interface unit (5)
Described power supply unit (1) extracts power supply from 38PIN interface unit (5) and offers numerical diagnostic and communication unit (2), signal transmitting unit (3) and signal receiving unit (4);
Described numerical diagnostic and communication unit (2), the operating state of monitoring electrical transmission module also receives external system information, and I2C communicates by letter with external system;
Described signal transmitting unit (3) from the signal of 38PIN interface unit (5) reception external system, sends to HF communication copper cable (6) to signal amplification, preemphasis processing;
Described signal receiving unit (4) receives the signal of HF communication copper cable (6), and to signal data recover, balanced, postemphasis, amplify, signal is transferred to external system by 38PIN interface unit (5);
Described 38PIN interface unit (5) connects internal electrical transport module and external system;
Described HF communication copper cable (6) connects two electrical transmission module, 4 pairs of 10G signals of parallel transmission;
Wherein: described numerical diagnostic is connected the state of pilot signal transmitting element with communication unit (2) with signal transmitting unit (3), signal receiving unit (4).
2. a kind of novel length according to claim 1 is apart from 40G QSFP communication active copper cable assembly, it is characterized in that: described numerical diagnostic and communication unit (2) comprise processor, external memory storage, communication module, unlatching or reset signal and send and the receiving element circuit, and external memory storage is deposited and the register information of signal receiving unit and signal transmitting unit and the state information that communication link is monitored; The signal of communication module output I2C form is communicated by letter with external system; The state information of processor pilot signal transmitting element and signal receiving unit, and store, with external device communication; Open or reset signal transmission and receiving element circuit, by the state of processor control signal transmitting element and signal receiving unit.
3. a kind of novel length according to claim 1 is characterized in that apart from 40G QSFP communication active copper cable assembly: described signal transmitting unit (3) and signal receiving unit (4) are formed by a clock and data recovery chip and a peripheral circuit that independently has four tunnel high frequency difference frequency sub-signals.
4. a kind of novel length according to claim 1 is characterized in that apart from 40G QSFP communication active copper cable assembly: described 38PIN interface unit (5) is the 38PIN golden finger interface of QSFP agreement regulation.
CN200920035506U 2009-03-12 2009-03-12 Novel long-distance 40G QSFP communication active copper-cable component Expired - Fee Related CN201393220Y (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102213806A (en) * 2011-06-14 2011-10-12 苏州旭创科技有限公司 Temperature control type 10G 80km SFP+ (enhanced 8.5 and 10 gigabit small form factor pluggable module) optical module with low power consumption

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102213806A (en) * 2011-06-14 2011-10-12 苏州旭创科技有限公司 Temperature control type 10G 80km SFP+ (enhanced 8.5 and 10 gigabit small form factor pluggable module) optical module with low power consumption
CN102213806B (en) * 2011-06-14 2013-07-31 苏州旭创科技有限公司 Temperature control type 10G 80km SFP+ (enhanced 8.5 and 10 gigabit small form factor pluggable module) optical module with low power consumption

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Granted publication date: 20100127

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