WO2018134651A1

WO2018134651A1 - Professional and secure terminal splitter for adsl optimized wiring mdf

Info

Publication number: WO2018134651A1
Application number: PCT/IB2017/052558
Authority: WO
Inventors: Ali SHAMS
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-01-17
Filing date: 2017-05-03
Publication date: 2018-07-26
Anticipated expiration: 2019-07-17

Abstract

The present invention is a new method of modifying telephone terminals to enable ADSL support (also known as "jumpering"), whereby, to enable or install ADSL on a telephone line, pairs of wire from horizontal terminal to vertical terminal remain intact and one pair connects the PAP terminal to the horizontal terminal that is equipped with a dedicated "splitter'; this also allows the ADSL support to be disabled by removing only one pair of wire and this installation/uninstallation process to be carried out without any change in MDF. The invented method requires no additional or special terminal and uses the terminals installed in telephone exchange centers. The invented method and more specifically the method of using electronic and splitter filter circuits and separation into splitter switch and data filter prevents PAP firms from abuse of access by providing high-speed Internet service without the consent of telecom company and also provides adequate security by protecting customers conversations against unlawful tapping or eavesdropping on PAP terminals and DSLAM. This invention reduces the quantity of jumper wires needed for enabling ADSL support on MDF by 70% (4 pairs of wire per subscriber).

Description

PROFESSIONAL AND SECURE TERMINAL SPLITTER FOR ADSL OPTIMIZED WIRING MDF

Description

TECHNICAL FIELD OF INVENTION

[0001]. Telecommunications, telecommunication network infrastructure, wiring and terminal jumpering in MDF to enable ADSL service for landlines. Switching centers, MDF rooms, wire pools, and DSLAM systems providing high-speed data connection to subscribers. Internet networks, service provider equipment, FSAIs, ONUs, access systems and final distribution boxes.

BACKGROUND OF INVENTION

[0002]. Today, adequate Internet access is among of the essential demands of human societies. Given the infrastructural limitations of telecommunication networks, especially the older ones, in providing ADSL service via landlines, installation of separate data support devices (DSLAM) in telephone exchange centers has become inevitable. In recent years, some data service providers are making increasing use of systems made by ZTE or Huawei. In these systems, lines are connected via 3 -port terminals with brands such as KT and DELL and PT (Figure 1). In many MDF rooms, the batches of data transmission lines and terminals (separate terminals with different brands) are connected in a way that leads to occupation of a large amount of space, consumption of a large amount of jumper wire, and leakage of subscribers' voice back toward the terminal of PAP (DSLAM) room. Also, in the case of operator error in installing the terminals, there is a possibility of data interference and increased noise in the system. Furthermore, terminals and splitter circuits are connected in a way that subscribers' voices are not protected against unauthorized tapping and eavesdropping on splitter. The confusion created by congestion of jumper wires in MDF rooms often complicates the work of operators and increases the chance of human error in wiring and installation of terminals, which are time-consuming and costly to remedy and impose significant costs on data service providers. The said congestion also prevents the internet service providers from using their existing resources at full potential to provide high-speed internet to more subscribers.

They are some old patented systems and devices such as:

[0003]. US 8165283 and US 8558642

[0004]. Relates to certain types of voice-data splitters and is distinct from the present invention in mechanism and circuits.

[0005]. EP 1901539 and EP 1089536 and EP 0942578 and US 8422662

[0006]. Relates to a home splitter and is unrelated to the scope of the present invention. [0007]. US 7684557

[0008]. Relates to a certain method of provision of digital lines and is unrelated to the present invention.

DETAILED DESCRIPTION OF INVENTION

[0009]. As mentioned, to provide ADSL service via landlines, separate data support devices known as DSLAM need to be installed in telephone exchange centers or other terminal points.

[0010]. The process of transferring data to subscribers starts from PaP rooms where DSLAM devices are installed. The MDF (main distribution frame) rooms act as a bridge between subscribers and data centers and data switching center.

[0011]. In MDF rooms,(Figure 1) data is transmitted with the help of a series of terminals and jumper wires. When the private PaP companies or data service providers entered the high-speed internet market, the main transmission facilities and infrastructure were the property of state-owned telecom companies.

[0012]. Therefore, these private companies had to provide their services through MDF rooms or ONUs. As a result, each company used to install its own terminal in MDF rooms, which later led to many problems caused by variety of terminal brands and models used for this propose.

[0013]. Typically, the MDF terminals providing landline connection are categorized into two groups, horizontal and vertical, which are usually products of large companies like Siemens, Crown, etc.

[0014]. In the current data transfer systems (Figure 1), Internet is provided by the PaP rooms where DSLAM devices are installed, but it is the capacity of MDF room that plays the decisive role in the number of subscribers that could be ultimately served. In MDF rooms, data lines are typically connected from PaP room (DSLAMs) to a PaP terminal that is simultaneously connected to both horizontal and vertical terminals by jumper wiring. In the routine process (prior art), first the horizontal terminal is disconnected from the vertical terminal, then PaP terminal is connected on one hand to (typically 8-port) horizontal terminal thus forming a path known as POTS, and on the other hand to the vertical terminal forming a path known as LINE.

[0015]. In the process of establishing and configuring a line, the horizontal and vertical terminals should be wired together, and must be unwired once the line is no longer in use.

[0016]. When conducted on large scales, this wiring-unwiring imposes substantial cost on telecom companies. In MDF rooms, it is typical to use 3-port splitters along with

3-port terminals for wiring and jumpering.

[0017]. The MDF terminals responsible for providing internet line (ADSL) to subscribers are designed to only work with their own splitters.

[0018]. Splitters in the terminals bar data line current and frequency from the switch system (switching center) and bar switch current and voltage from the data line.

Splitters distribute the data over telephone lines so that voice and data can be simultaneously transmitted over the line.

[0019]. In the subscriber's home, another splitter separates the data signal from voice signal, and thus allows simultaneous access to both telephone and internet service.

[0020]. Since the advent of this communication mechanism in telecom companies, PaP terminals and their splitters have lacked the filters to protect the confidentiality of subscribers' conversations.

[0021]. Also, MDF terminals often occupy significant space while providing relatively low capacity, so older exchange centers often struggle and occasionally fail to meet the demand for data lines.

[0022]. Terminals installed in MDF rooms of telecom companies are often from brands such as Siemens and Crown etc., and have special slots for the connectors of the same brand.

[0023]. Given the breadth of wiring paths and sheer number of terminals involved, jumper wires also occupy a significant fraction of little space available in MDF room.

[0024]. Jumpering refers to the process of enabling a data/voice line for a telephone subscriber by extending an application-specific wire known as jumper wire from the MDF's horizontal terminal to vertical terminal, which is far more complicated in FSAIs and ONUs.

[0025]. In summary, the process of modifying the subscriber's line to enable ADSL is typically carried out by taking the following steps:

[0026]. Removing the pair (jumper wire) from the horizontal terminal to the vertical terminal.

[0027]. Attaching a pair from the horizontal terminal to the PAP terminal in MDF room.

[0028]. Attaching another pair from the PAP terminal to the vertical terminal and installing the splitter on the PAP terminal.

[0029]. (Note that by this method, installation process requires 3 pairs of wire to be attached and uninstallation process requires 3 pairs of wire to be removed, so a total of 6 wire pairs of different lengths need to be handled.)

[0030]. The 3 -port splitter of PAP terminal in typical and legacy systems bars data frequency from the switch but allows voice frequencies through the line.

[0031]. The wide variety of terminals of different models and brands used in MDF rooms is the source of many problems, for example:

[0032]. Congestion of jumper wires and connections in MDF rooms wastes the available space, forces the operators to use extra quantities of jumper wires when fitting ADSL installation, and makes the work of operators more difficult, complicated, and confusing, and thus increases not only the chance of human error in wiring and installing terminals, but also the workload and waiting times and queue for enabling ADSL service, which impose significant costs on data service providers and annoys their customers.

[0033]. The error in installation of terminals may also lead to interference between data lines and increased noise in the system.

[0034]. The limited space of MDF room of a telephone exchange center may limit the number of data lines that can be provided through that center. In areas where the work is outsourced to private companies, it is virtually impossible to ensure the confidentiality of subscribers' conversations. Also, MDF operators have to deal with terminals of different models and brands.

[0035]. The present invention (Figure 2) solves the aforementioned issues in ADSL installation/uninstallation process in MDF, FSAIs and ONUs by using the existing terminals and standard splitter filter.

[0036]. This is achieved by no change in prior MDF wiring except -depending on the terminals installed- attaching a pair to the 1-port or 8-port cartridge converter or to the connector of the installed terminal. This eliminates the need for removing the jumper wire from the horizontal terminal to the vertical terminal, and with this single wire pair attached to the connector, voice in the horizontal terminal is carried via both the 8-port splitter with filter and the 1-port filter in PaP terminal. This bars the voice from PAP room and thus prevents eavesdropping.

[0037]. The utilized terminals can be in different positions and horizontal and vertical terminals can be of the same or different types and brands. If the horizontal terminal is made by Siemens, the present invention can be attached to 2-port splitter (Figure 8), and if it is made by companies such as Crown, Corcess, etc. the inventions can be attached to its dedicated 1-port or 8-port splitter. For the horizontal terminals of different types, the board of splitter can be slightly modified to become compatible with terminal's specific dimensions.

[0038]. The present invention (Figure 2) makes no fundamental change in MDF, but rather changes the ADSL installation (jumpering) process. In the invented jumpering method, for ADSL installation, wire pairs from horizontal terminal to vertical terminal remain intact and a wire pair is attached from the PAP terminal to the horizontal terminal where a dedicated "splitter' is installed, and for disabling ADSL installation, only one pair of wire needs to be removed, and thus MDF remains largely intact. The invented method requires no special terminal and uses the terminals typically installed in telephone exchange centers.

[0039]. The present invented and specifically the method of using electronic and splitter filter circuits (Figure 5) and separation into splitter switch and data filter prevents PAP firms from providing high-speed Internet service without the consent of telecom company and provide adequate security by protecting customers conversations against eavesdropping on PAP terminals by operators or other persons.

[0040]. In the present invention, splitter filter eliminates the problem of voice leakage to the terminals of PAP room

[0041]. In this invention, subscriber's phone line signal (tone) remains connected throughout the process of installing data service as the horizontal terminal remains connected to the vertical terminal and only a wire pair is attached to the splitter installed on the horizontal terminal.

[0042]. The present invention reduces the quantity of jumper wires need for ADSL installation in MDF room by 70% (4 wire pairs).

[0043]. The present invention reduces the congestion of ADSL installations on the MDF room and thus the chance of human error and can decrease the time of this process by 80%. As a result, this invention allows the ADSL service to be enabled for the majority of subscribers without needing to expand the physical space. This invention is applicable to the MDF rooms, FSAIs, ONUs, and final distribution boxes and access points.

BRIEF DESCRIPTION OF FIGURES

[0044].

> Figure 1: illustrates the prior method of enabling ADSL on subscriber's landline (jumpering).

> Figure 2: illustrates the invented method of enabling ADSL on subscriber's landline (jumpering).

> Figure 3: illustrates a general view of 8-port cartridge terminal connected to the existing terminals.

> Figure 4: illustrates a general view of 8-port cartridge terminal and its constituent parts.

> Figure 5: illustrates an example of 8-port cartridge terminal (with combined splitter filter) and circuits in various embodiment of the invention.

> Figure 6: illustrates an example of the filter used in data input path from DSLAM.

> Figure 7: illustrates an example of 1-port splitter used in existing terminals path.

> Figure 8: illustrates an example of splitter used in existing path of Siemens terminals.

DETAIL DESCRIPTION OF FIGURES

[0045]. Figure 1 illustrates the prior method of enabling ADSL on subscriber's landline (jumpering), where: No. l shows the DSLAM; No.2 shows the MDF space; No.3 shows the PaP terminal; No.4 shows the Horizontal terminals; No.5 shows the Vertical terminals; No.6 shows the possible eavesdropping and wiretapping paths; No.7 shows the Telephone switching (exchange) center; No.8 shows the Subscriber home.

[0046]. Figure 2 illustrates the invented method of enabling ADSL on subscriber's landline (jumpering), where:No. l shows the DSLAM; No.2 shows the MDF space;No. l0 shows an example of 1-port filter of the present invention; No.11 shows the 8-port cartridge terminal with combined embedded splitter filter; No.5 shows the Vertical terminals; No.9 shows the sealed eavesdropping and wiretapping paths; No.7 shows the Telephone switching (exchange) center; No.8 shows the Subscriber home.

[0047]. Figure 3 illustrates a general view of 8-port cartridge terminal connected to the existing terminals, where: No.14 shows the socket of the installed terminal, which has a standard format in telecom networks and terminals; No.15 shows the terminal connection slot; No.16 shows the terminal endpoint; No.17 shows the terminal's rear handle; No.20 shows the upper casing of 8-port cartridge terminal; No.18 shows the upper edge and support of 8-port cartridge terminal on the exiting terminal; No.19 shows the joint of plastic pins of body casing; No.21 shows the connector of upper and lower casings and support of electronic board of 8-port cartridge terminal; No.22 shows the casing of 8-port cartridge terminal; No.23 shows the slot where jumper wires connects to DSLAM; No.24 shows the metal fittings of terminal socket.

[0048]. Figure 4 illustrates a general view of 8-port cartridge terminal and its constituent parts, where:No.20 shows the upper casing of 8-port cartridge terminal; No.18 shows the upper edge and support of 8-port cartridge terminal on the exiting terminal; No.19 shows the joint of plastic pins of body casing; No.20 shows the Cover of splitter and filter circuits; No.21 shows the connector of upper and lower casings and support of electronic board of 8-port cartridge terminal (holding it on the vertical terminal installed beneath); No.22 shows the casing of 8-port cartridge terminal; No.23 shows the slot where jumper wires connect to DSLAM; No.24 shows the metal fittings of terminal socket; No.25 shows the external connection of the board; No.26 shows the Electronic board and its splitter and filter; No.27 shows the board crossing slot in the connector of two casings; No.28 shows the plastic protrusion and supporting edge; No.29 shows the board connection slot and location of sockets; No.30 shows the numbers on the body of 8-port cartridge (to order the data lines).

[0049]. Figure 5 illustrates an example of 8-port cartridge terminal and splitter filter circuits in various embodiment of the invention. In this figure: No.25 shows the external connection to the installed horizontal terminals; No.26 shows the Electronic board and its splitter and filter; No.31 shows the switch-side filter circuit (LINE); No.32 shows the DSLAM-side filter input; No.33 shows the switch-side filter circuit (POTS); No.34 shows the LINE-side filter output; No.36 shows the Choke; No.35 shows the Capacitors used in terminal and splitter circuits.

[0050]. Figure 6 illustrates an example of the filter used in data input path from DSLAM, where: No.22 shows the casing of 8-port cartridge terminal; No.15 shows the terminal installation slot; No.16 shows the terminal endpoint; No.17 shows the terminal's rear handle; No.39 shows the side view of 1-port filter or splitter; No.40 shows the position of plastic pin of two casings; No.41 shows the male socket of 1- port filter or splitter.

[0051]. Figure 7 illustrates an example of 1-port splitter used in the path of installed Crown terminals, where: No.22 shows the casing of installed 8-port vertical terminal; No.15 shows the terminal connection slot; No.16 shows the terminal endpoint; No.17 shows the terminal's rear handle;No.41 shows the male socket of 1-port splitter; No.42 shows the input path of jumper wire for connection to the pins on splitter's tail; No.43-46 shows inlet of jumper wire from DSLAM side.

[0052]. Figure 8 illustrates an example of splitter used in the input path of installed horizontal terminals. In this figure: No.50 shows the splitter of horizontal terminal; No.51 shows the position of support of splitter's plastic frame; No.52 shows An example of installed horizontal terminal; No.53 shows the metal segment of terminal connections; No.54 shows the position where jumper wires are connected to horizontal and vertical terminals, and in this model, where data wire is coupled; No.48-49 show the position where socket is connected to splitter's internal connections.

MAJOR TECHNICAL ADVANTAGES OF INVENTION 53].

1) Using the present invention, ADSL installation on landline requires no specific terminal other than those typically used in MDF, and allows the low-capacity PAP terminals to be removed and replaced.

2) The present invention decreases the human errors in the process of ADSL installation on landline, which mainly originate from the need to use large quantities of jumper wire.

3) The present invention decreases the quantity of jumper wires to be used for ADSL installation process by 70%.

4) The present invention increases the speed of ADSL installation process by 80% and decreases the time of this process to less than 1 minute, and allows the ADSL service to be enabled for the majority of customers without needing to expand the physical space of telephone exchange center.

5) The present invention prevents unauthorized tapping or eavesdropping on PAP terminals and DSLAM cables and prevents private firms from providing highspeed Internet services without the consent of telecom company.

Claims

1) Invention capable of securing the subscribers conversations by preventing wiretapping or eavesdropping by the combined use of splitter and filter.

2) The invented method is applicable to all varieties of high-speed Internet terminals and systems including adsl, adsl2+, vdsl, shdsl,, adsl+, g.shdsl and all varieties of hardware with brands kt, pt, dell, zte, Crown, Corcess, Huawei, IPG with port size of 32 up to 250 pairs, and can be used with individual or coupled splitter in MDSs, FSAIs, ONUs, and home access boxes.

3) Splitter of the invention can be installed on all varieties of terminals used in MDSs and FSAIs with any brand including Siemens, Crown, Corcess, Huawei and zte with all port sizes including 5,8, 32, 64, 128, 200, 256, and 512 pairs, and can be used in conjunction with filter.

4) The invention prevents voice leakage back to PAP terminals and DSLAM cables.

5) Wiring of the invention (Figure 1) eliminates the need for two of the main ADSL wirings in MDF rooms, thereby leading to reduced use of jumper wires, faster ADSL installation process, decreased need for physical space, reduced human error, and lower cost of the process.

6) The invention uses 1-port and 8-port cartridge terminal along with splitter and filter circuits.

7) The invention allows the line status to be checked in the MDF room using the splitter.

8) Surge arrester components and splitter and filter could be added on vertical or horizontal terminal.

9) A visual indicator could be added on the present invention.

10) Data transmission could be realized through remote terminal.