CN211959217U - RemotePHY equipment with function of simulating light entrance and light exit - Google Patents

Abstract

The utility model discloses a Remote PHY equipment with simulation light goes into light-out, optical transmitter, first optical receiver and second optical receiver and Remote PHY equipment (RPS-M) are integrated to a module in, through this module, can realize traditional Remote PHY equipment and add the function of optical transmitter, optical receiver and branching unit combiner.

Description

RemotePHY equipment with function of simulating light entrance and light exit

Technical Field

The utility model relates to an optical communication technical field especially relates to a RemotePHY equipment with light-out is gone into to analog light.

Background

The Remote PHY is a physical layer conversion device, and its main functions include: converting downstream DOCSIS signals, MPEG video signals and OOB signals transmitted from the CCAP Core via an ethernet or PON (passive optical network) into analog radio frequency signals; the received upstream DOCSIS signals and OOB signals are converted into digital signals and transmitted to the CCAP Core via the Ethernet or PON. The CCAP Core uses the MHAv2 protocol to connect to the devices of the RPS-M. The interior circuit of the Remote PHY device mainly comprises a down QAM modulation, an up QAM demodulation, a pseudo wire logic connected to the CCAP Core and the like.

As shown in fig. 1, the downstream signal output by the Remote PHY device is transmitted to a Combiner (Combiner) via a downstream channel DS, the Combiner combines the downstream signal with a CMTS 2.0 downstream signal, an IPQAM signal and other signals, and then inputs the combined signal to an Optical Transmitter (analog Optical Transmitter), and the analog Optical Transmitter modulates the combined signal into an analog Optical signal and transmits the analog Optical signal to a lower Optical station; an Optical Receiver converts an uplink Optical signal from a lower Optical station into a radio frequency signal, and transmits the radio frequency signal to a Remote PHY device through a Splitter and Combiner.

After an analog radio frequency signal output by the analog optical receiver 1 is divided into four paths of signals by a splitter 1, one path of the signals is input to a combiner 1 and then input to Remote PHY equipment RPS-M by an uplink channel US 0; the analog radio frequency signal output by the analog optical receiver 2 is divided into four paths of signals by the splitter 2, wherein one path of signals is input to the combiner 2 and then input to the Remote PHY device RPS-M through the uplink channel US 1. The two analog optical signals are input, and the two radio frequency signals are respectively output to the RPS-M, wherein the two analog optical signals are input and output.

After an analog radio frequency signal output by the analog optical receiver 1 is divided into four paths of signals by the splitter 1, two paths of signals are respectively input to the combiner 1 and the combiner 2 and are respectively transmitted to the Remote PHY device RPS-M through the uplink channels US0 and US 1. The condition is that one path of analog optical signal is input, and two paths of radio frequency signals are output to the RPS-M, and the condition is that one path of signal enters two paths of signals to be output.

An analog radio frequency signal output by the analog optical receiver 1 is divided into four paths of signals by a splitter 1; the analog rf signal output from the analog optical receiver 2 is split into four signals by the splitter 2. Each of the two four-path signals is input to the combiner 1 or the combiner 2, and is transmitted to the Remote PHY device RPS-M through the uplink channel US0 or US 1. The condition is that two analog optical signals are input, and one radio frequency signal is output to the RPS-M, and the condition is that two signals enter one signal to be output.

However, in the existing network structure, the optical transmitter, the optical receiver, the splitter and the combiner occupy a small space in the machine room; in addition, the cabling of the rooms is made more complicated by the coaxial cables connecting them, in particular the cables connecting the splitters and combiners.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem who exists among the background art, the utility model provides a remotePHY equipment with light-out is gone into to simulation light to it is big to solve among the prior art equipment occupation space, the complicated problem of wiring.

The utility model provides a RemotePHY equipment with light goes into light-out is imitated, include: an RPS-M module, an optical transmitter, a first optical receiver, and a second optical receiver, wherein,

the optical transmitter is connected with the RPS-M module through a downlink channel DS; the first optical receiver and the second optical receiver are respectively connected with the RPS-M module through uplink channels US0 and US1, convert received analog optical signals into radio frequency signals and input the radio frequency signals to the RPS-M module through US0 and US 1;

wherein, the RPS-M module specifically comprises:

a control unit;

the FPGA is connected with the control unit;

the data storage unit is connected with the control unit;

the data storage DDR3 is connected with the FPGA and the clock network unit;

the clock network unit is connected with the FPGA, the PHY interface circuit, the data storage DDR3 and the ADC/DAC;

the ADC/DAC is connected with the FPGA, the radio frequency filtering and amplifying circuit and the clock network unit;

the PHY interface circuit is connected with the upper computer, the FPGA and the clock network unit;

and the radio frequency filtering and amplifying circuit is connected with the ADC/DAC and is connected with the optical transmitter, the first optical receiver and the second optical receiver.

Preferably, the control unit is a CPU.

Preferably, the data storage unit is an EEPROM.

The utility model discloses in, with prior art Remote PHY module and optical transmitter, optical receiver, branching unit and combiner etc. are integrated in a module, have reduced the space that occupies the computer lab, have simplified the wiring of simplifying the computer lab.

Drawings

Fig. 1 is a diagram of a prior art RemotePHY device with analog light ingress and egress;

fig. 2 is a diagram of a RemotePHY device structure with analog light input and output according to an embodiment of the present invention.

Detailed Description

Embodiment 1 of the utility model provides a remotePHY equipment with light goes into light out is simulated to embodiment 1, as shown in fig. 2, include: an RPS-M module 40, an optical transmitter 10, a first optical receiver 20 and a second optical receiver 30. Wherein the content of the first and second substances,

the optical transmitter 10 is connected with the RPS-M module 40 through a downlink channel DS; the first optical receiver 20 and the second optical receiver 30 are connected to the RPS-M module 40 through uplink channels US0 and US1, respectively, convert the received analog optical signal into a radio frequency signal, and input the radio frequency signal to the RPS-M module 40 through US0 and US1, respectively.

The RPS-M module 40 specifically includes:

a control unit 41, configured to control and monitor signals in the RPS-M module 40, control transmission of configuration information, implement communication with an upper computer, and the like; for example, when different configuration modes are required, the upper computer issues a control signal corresponding to the configuration mode to the control unit 41 through a debugging command, and after the control unit 41 reads the control signal, the control unit retrieves the configuration file in the data storage unit 43 and issues the configuration file to the FPGA 42; the control unit uses a CPU (central processing unit);

an FPGA (Field Programmable Gate Array) 42 connected to the control unit 41, wherein the FPGA42 can realize the function of inputting two paths of analog optical signals in the uplink direction and outputting two paths of radio frequency signals, or inputting one path of analog optical signals and outputting two paths of radio frequency signals, or inputting two paths of analog optical signals and outputting one path of radio frequency signals after being automatically configured according to a configuration file sent by the control unit 41;

a data storage unit 43 connected to the control unit 41 for storing a plurality of different configuration modes; the data storage unit is an EEPROM (Electrically Erasable Programmable read only memory);

also included within RPS-M module 40 are:

the data storage DDR 344 is connected with the FPGA42 and the clock network unit 45 and is used for storing temporary data of the FPGA;

the clock network unit 45 is connected with the FPGA42, the PHY interface circuit 47, the data storage DDR 344 and the ADC/DAC46, and provides clock signals for the FPGA, the ADC/DAC, the PHY interface circuit, the data storage DDR3 and the like;

the ADC and DAC46 are connected with the radio frequency filtering and amplifying circuit 48 and the FPGA42 and are used for data analog-to-digital conversion and digital-to-analog conversion;

and the PHY interface circuit 47 is connected with the upper computer, the FPGA and the clock network unit 45.

The rf filtering amplifier circuit 48, the ADC/DAC46, the optical transmitter 10, the first optical receiver 20, and the second optical receiver 30 mainly include a high-pass or low-pass filter circuit, an rf signal amplifier circuit, and the like.

The utility model discloses in, in the optical transmitter, first optical receiver and second optical receiver and Remote PHY equipment (RPS-M) is integrated to a module, through this module, can realize traditional Remote PHY equipment and add the function of optical transmitter, optical receiver and branching unit combiner.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (3)

1. A RemotePHY device with analog light ingress and egress, comprising: an RPS-M module (40), an optical transmitter (10), a first optical receiver (20) and a second optical receiver (30), wherein,

the optical transmitter (10) is connected with the RPS-M module (40) through a downlink channel DS; the first optical receiver (20) and the second optical receiver (30) are respectively connected with the RPS-M module (40) through uplink channels US0 and US1, convert received analog optical signals into radio frequency signals and input the radio frequency signals to the RPS-M module (40) through US0 and US 1;

wherein, the RPS-M module (40) specifically comprises:

a control unit (41);

an FPGA (42) connected to the control unit (41);

a data storage unit (43) connected to the control unit (41);

a data storage DDR3(44) connected to the FPGA (42) and the clock network unit (45);

the clock network unit (45) is connected with the FPGA (42), the PHY interface circuit (47), the data storage DDR3(44) and the ADC/DAC (46);

the ADC/DAC (46) is connected with the FPGA (42), the radio frequency filtering and amplifying circuit (48) and the clock network unit (45);

the PHY interface circuit (47) is connected with the upper computer, the FPGA (42) and the clock network unit (45);

and the radio frequency filtering and amplifying circuit (48) is connected with the ADC/DAC (46) and is connected with the optical transmitter (10), the first optical receiver (20) and the second optical receiver (30).

2. A RemotePHY device with analog light in and out according to claim 1, wherein the control unit (41) is a CPU.

3. A RemotePHY device with analog light in and out as claimed in claim 1, wherein the data storage unit (43) is an EEPROM.

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