CN203251295U

CN203251295U - EOC terminal device

Info

Publication number: CN203251295U
Application number: CN 201220717622
Authority: CN
Inventors: 王泽辉; 刘正浩
Original assignee: HUNAN HKT TECHNOLOGY Co Ltd
Current assignee: HUNAN HKT TECHNOLOGY Co Ltd
Priority date: 2012-12-24
Filing date: 2012-12-24
Publication date: 2013-10-23
Anticipated expiration: 2022-12-24

Abstract

The utility model relates to the field of network transmission devices, and specially relates to EOC terminal device. A 10 [mu]F bypass capacitor is arranged on a place where a circuit board power supply of the EOC terminal device is inputted, a 0.1 [mu]F capacitor is arranged between a power pin and a ground pin of each component, and a large 10 [mu]F capacitor is arranged between a power supply module on the board and the ground; and a digital circuit is separated from an analog circuit, and each circuit template is grounded at a single point. Due to such arrangement, interference among electronic components can be well prevented; and the bypass capacitor acts as a filter, and the large 10 [mu]F capacitor arranged between the power supply module on the board and the ground is employed to filter low-frequency noises generated on the board.

Description

A kind of EOC terminal equipment

Technical field

The utility model relates to the web-transporting device technical field, is specifically related to a kind of EOC terminal equipment.

Background technology

The EoC(Ethernet transmits by coaxial cable) for making up the network equipment crucial in the integration of three networks business, be finish photoelectric conversion and will transform after digital data transmission to terminal use's nucleus equipment.

The EoC technical scheme comprises modulation EoC and base band EoC.

EoC is based on coaxial cable in modulation, carries Ethernet service and other various integrated services by various digital modulation techniques, realizes the access of cable TV network consumer wideband.Modulation EoC system is comprised of local side apparatus, trunking, terminal equipment; Major technique has MoCA(c.link), Wi-Fi (WLAN), HomePlug AV, HomePlug BPL, HPNA etc.

Base band EoC adopts Baseband Transmission Technology, is comprised of local side apparatus, terminal equipment.

The EOC terminal be one with the modulator-demodulator of higher level service ability; Interface has coaxial interface and RJ45 interface, is used for establishing a communications link with the EOC local side that the cable TV optical node is installed.Its kind is various, and wireless transmission, multiservice functionality, single business function, a plurality of kinds of integrated routing function are arranged.It is applied in the broadband access network business of various places radio and TV operator (TV in CATV network company or cable TV station), is installed in the user family, and the ability of senior online is provided.

EOC terminal equipment of the prior art relatively disperses, between easily go out by connection.

Summary of the invention

In order to solve the deficiencies in the prior art, the utility model provides a kind of EOC terminal equipment, adopt this EOC terminal equipment, the user need not additionally to buy the terminal equipments such as wireless router, IP phone, equipment power dissipation is low simultaneously, the time that equipment is installed, cost few and that safeguard was low, and the space of hold facility is little, and the failure rate of power supply is also few.

In order to realize utility model, specifically by the following technical solutions:

Described EOC terminal equipment comprises: coaxial cable radio frequency input/output module, the cable TV signal interface module, the broadband interface module, the networking telephone (VOIP) interface module, power module, the broadband access module comprises cable broadband interface and WiMAX routing interface, it is characterized in that: described cable TV signal interface module, the broadband interface module, networking telephone interface module, power module all is incorporated on the circuit board, by described each functional module of EOC terminal equipment, employing coaxial cable radio frequency input/output module can be with computer, router, switch, IP phone, the network equipment accessing Internets such as set-top box, and TV and data-signal are provided.

The EOC terminal equipment that adopts the utility model to provide, the user need not additionally to buy the terminal equipments such as wireless router, VOIP phone, and only need buy cheap plain old telephone, just can make a call and meet VOIP, and equipment to have integrated other scattered network routing devices lower than a plurality of scattered equipment power dissipations, the energy telephone expenses of VOIP phone also are significantly less than the expense of black phone, the time of equipment installation and the cost of maintenance have also been shortened simultaneously, saved the space of hold facility, the process chip of VOIP is the CM5000 chip.

Described power module is external power supply, on-chip power is difficult for causing the loss of electronic devices and components owing to heat radiation, be incorporated on the mainboard owing to all functional modules simultaneously, a power interface only is set on the mainboard, therefore, as long as external power supply also connects one, thus so that the also greatly reduction owing to only needing an external power supply of equipment failure rate.

The cable broadband interface of described VOC terminal equipment is 2 adaptive RJ45 interfaces of 10/100BaseT; Equipment adopts OFDM modulation, multi-transceiver technology; Adopt 128 AES data encryptions; The operating system of compatible Windows 2000, Windows XP, Linux, Mac OS X and other support Ethernet.

In order to prevent the interference between the electronic devices and components, the shunt capacitance of placing 10 μ F in the place that the circuit board power supply of described EOC terminal equipment is inputted, between the supply pin of each components and parts and grounding leg, place the electric capacity of 0.1 a μ F, the large electric capacity of 10 μ F is set between on board supply module and the ground; Digital circuit is separated with analog circuit, each master die single-point grounding.Shunt capacitance plays a part filter, and the large electric capacity 10 μ F that are placed between on board supply and the ground are the low-frequency noises that produce on the filtering plate.

Description of drawings

Fig. 1: the structural representation of Eoc terminal equipment, wherein, 1. the output radio frequency 2. mixes input radio frequency, 3. RJ45 interface, 4.VOIP phone, 5. mains switch, 6. power input interface.

Fig. 2: the wave point wideband data flows to schematic diagram.

Fig. 3: the Ethernet interface wideband data flows to schematic diagram.

Fig. 4: the VOIP wideband data flows to schematic diagram.

Fig. 5: the EOC terminal device circuitry composition that hardens.

Embodiment

The invention will be further described below in conjunction with accompanying drawing.

Fig. 1 is device structure schematic diagram of the present utility model.

Described EOC terminal equipment comprises: coaxial cable radio frequency input/output module, the cable TV signal interface module, the broadband interface module, the networking telephone (VOIP) interface module, power module, the broadband access module comprises cable broadband interface and WiMAX routing interface, it is characterized in that: described cable TV signal interface module, the broadband interface module, networking telephone interface module, power module all is incorporated on the circuit board, by described each functional module of EOC terminal equipment, employing coaxial cable radio frequency input/output module can be with computer, router, switch, the VOIP phone, the network equipment accessing Internets such as set-top box, and TV and data-signal, the process chip of VOIP are provided is the CM5000 chip.

Above-described embodiment, the utility model embodiment several more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection range of the present utility model.

Claims

1. EOC terminal equipment, comprise: coaxial cable radio frequency input/output module, the cable TV signal interface module, the broadband interface module, networking telephone interface module, power module, the broadband access module comprises cable broadband interface and WiMAX routing interface, described cable TV signal interface module, the broadband interface module, networking telephone interface module, power module all is incorporated on the circuit board, by described EOC terminal equipment modules, employing coaxial cable radio frequency input/output module can be with computer, router, switch, the VOIP phone, the network equipment accessing Internets such as set-top box, provide TV and data-signal to the user, described power module is external power supply, it is characterized in that: the shunt capacitance that 10 μ F are placed in the place of described circuit board power supply input, between the supply pin of each components and parts and grounding leg, place the electric capacity of 0.1 a μ F, the large electric capacity of 10 μ F is set between on board supply module and the ground; Digital circuit is separated with analog circuit, each master die single-point grounding.