ES2317752A1 - Gestionable digital distributor for 2 mbit/s. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Manageable digital dispatcher for 2 mbit/s frames. Equipped with coaxial connectors for 2 mbit/s tributaries. (10), optical interfaces (2 to 5), coaxial connectors for synchronization (6) and rj45 connector for the management of the distributor (7). The distributor is connected to one or several sdh equipment by means of fiber optic cables through the optical interfaces, maps/demaps the sdh frames (1), performs the transconnections at tu12 level between optical interfaces and/or the tributaries of 2 mbit/s. With the new distributor the 2 mbit/s tributary cards are not necessary. Of the sdh equipment. The management and supervision of the new distributor is done by software through an ethernet port with ip address (7) locally or remotely from a network manager that manages several distributors of one or different telecommunications centers, keeping in database the assignments made. (Machine-translation by Google Translate, not legally binding)

Description

Manageable digital splitter for frames of 2 Mbit / s

Sector of the technique to which this invention relates

The invention falls within the field of Telecommunications, more specifically used in transmission of 2 Mbit / s signals. from SDH communications equipment to digital frame distributors and interconnections made in them.

Background. Current state of the art

In the Communications Centers all tributaries of 2 Mbit / s. SDH line devices are wired to digital frame distributors by means of cables and coaxial connectors. In the distributors it gives way to the interconnection by means of coaxial pitch pins, most of the times with measurement (two pegs per tributary and delivery man).

To make an interconnection between tributaries of different line equipment, it is necessary to perform a bridge (two coaxial cables for each tributary) in the distributor or between distributors if the equipment is not wired in the same plotter.

The services at 2 Mbit / s. from the Center itself Communications are also wired to digital delivery people and it is it is necessary to bridge the assigned taxpayer's dealer to establish the circuit

The volume of coaxial cabling in the digital delivery is very high, causing saturations that hinder the work of new assignments, becoming very difficult recovery of used coaxial cables previously.

In some Communications Centers interconnect line SDH devices with interfaces S-1.1, with the drawback of using an interface optical only to transit some services. It has to be in account that the equipment capacity of this type of interfaces On SDH equipment it is limited.

It would therefore be desirable to be able to interconnect all line equipment and services of the Centers of Communications without the need for coaxial cabling or bridges in the deliverymen.

For this, the present invention eliminates Communications Centers most coaxial cabling between the teams and the deliverymen and the bridges between distributors to perform the circuit allocation by software locally or remotely.

The present invention also decreases the space dedicated to distributors, the time of breakdowns by manipulation in them, the allocation time of a circuit and considerably reduces labor and material costs of the installations.

Allows the management of the Distributors Digital Managed by software locally or remotely to through an IP network, from a centralized position that manages All Managed Digital Distributors of various Centers of Communications, automatically maintaining a base updated of all assignments and performing the supervision of The aforementioned dealers.

Explanation of the invention.

The invention relates to a new Delivery Man Manageable Digital that constitutes a solution to the problem raised with 2 Mbit / s interconnections. in the Centers of Communications

The new Manageable Digital Dealer ( RDG ), object of the invention, is a telecommunications equipment that is housed in a cabinet of similar dimensions to the conventional digital distributors that it replaces and is divided into two areas.

The area of coaxial connectors 1.6 / 5.6 H. DIN 47295 where the tributaries connect for the services of the Communications Center and the card area where the interconnection matrix, the circuitry necessary for the equipment operation, optical interfaces and connectors for synchronization and management.

The configuration of this invention, referring to the Managed Digital Delivery Teams, is constituted by electronic components, already developed, belonging to its majority to SDH transmission technology and widespread in the national and international market, which properly combined make up the teams that enable the purpose of this invention.

The invention contemplates two types of Manageable Digital Distributors. The RDG1-2M for medium-sized centers and the RDG4-2M for large centers. The two Manageable Digital Distributors offer the same functionalities, except for the transconnection capacity of TU12, the number of tributary extraction and optical interfaces.

All optical interfaces are of the SFP type (Small Form-Factor Plug-in).

The RDG1-2M Manageable Digital Distributor has a connector area with 126 coaxial connectors, that is, an extraction capacity of 63 tributaries of 2 Mbit / s. This equipment can have up to four S1.1 optical interfaces on the front.

The RDG4-2M Manageable Digital Distributor has a connector area with 504 coaxial connectors, that is, an extraction capacity of 252 tributaries of 2 Mbit / s. This equipment can have up to eight S1.1 optical interfaces and two S4.1 interfaces on the front.

Managed Digital Distributors are connect to SDH line devices through the S1.1 interfaces with fiber optic hoses, so that the function of mapping / unmapping of the STM-1 signal is performed in the Manageable Digital Dealer and not in the team, so that Eliminates coaxial wiring between equipment and distributor. Neither it is 63x2 Mbit / s demultiplexer card required. in the team of line.

Several line SDH teams can share a same Manageable Digital Dealer when connected by S1.1 interfaces. it is not necessary to equip multiplex cards 63x2 Mbit / s. nor do coaxial cabling in any of the SDH equipment

The coaxial cable bridges in the distributors to establish circuits, are replaced by transconnections made at TU12 level by software in the matrix of connection of the Manageable Digital Dealer, which can be between  optical interfaces, between 2 Mbit / s interfaces. or between both of them.

The expansion of Digital Distributors Manageable is done by interconnecting the distributors with S1.1 or S.4.1 interfaces, being able to pass the cross-connections at the level from TU12 from one distributor to another, extract them to the connectors coaxial or send it to another device through the S1.1 interface.

RDGs allow protection of circuits, equipping two S1.1 interfaces in the line equipment that they connect with optical hoses to two S1.1 interfaces of the RDG and making a protected connection in the distributor matrix. Circuit protection can also be performed through Two different SDH devices.

The Great Telecommunications Centers size with a high number of tributaries or interconnections between SDH devices, RDGs can be connected to ADM devices STM-16 (matrix with TU12 granularity) through tributaries S-1.1 or S-4.1 for form an interconnection network at 2 Mbit / s or TU12.

The services at 2 Mbit / s. from the Center of Communications are wired directly to the connectors of the distributor with male coaxial connectors, which allows not staff intervention is necessary to perform assignments in the Communications Center.

The coaxial step plug with measurement, as the deliveryman himself provides through of the local or remote software information about the point of connection and the ease of enabling or not each taxpayer.

Managed Digital Distributors are can synchronize from the incoming STM-1 signal of any optical tributary or through two coaxial connectors located on the front. They can also be used to distribute the synchronization signal through the optical interfaces, a Once the dealer has been synchronized by the inputs external from a suitable synchronization source.

Constructively, all teams Managed Digital Distributors have duplicates all common organs and the power supply of -48 Vdc.

All Digital Delivery Teams Manageable have an ethernet connection with an address IP, so as to allow the connection of a local manager or a centralized remote manager.

In the Telecommunications Centers where there are several manageable digital delivery teams only an IP connection is required for the local or remote manager, since the communication between several distributors is done through the DCC channels of the STM-1 frame itself.

When several Centers are available Telecommunications in which Distributors have been installed Manageable Digital, you can install a Network Manager that allows to realize all the functionalities of the local Manager and also allows to create the interconnections between the distributors of quickly and easily, as well as maintaining a database with all assignments made in the Center.

The Network Manager makes a rotary connection on each of the connected equipment, checking the status of the connection and the changes produced. When a new one occurs event in the dealer, the team reports it to the Network Manager, who It processes and represents it immediately.

Description of the drawings

The present invention is further illustrated. through the following figures, which are not intended to be limiting their scope.

Figure one

Figure 1 represents the mechanical aspect of the Manageable Digital Dealer with capacity for 63 tributaries (RDG1-2M).

The description of the different parts of the team is as follows:

1. Coaxial connector area. 126 connectors 1.6 / 5.6 H. DIN 47295.

2. Card area.

3. Indicators of the operating status of the team.

4. RJ45 connector for local manager connection or remote

5. Six STM-1 optical interfaces of type S1.1.

6. Matrix switching and circuitry.

7. Two connectors for signal input synchronization.

8. Two connectors for the input of the power supply -48 Vdc.

Figure 2

Figure 2 represents the mechanical aspect of the Manageable Digital Dealer with capacity for 252 tributaries (RDG4-2M).

The description of the different parts of the team is as follows:

1. Coaxial connector area. 504 connectors 1.6 / 5.6 H. DIN 47295.

2. Card area.

3. Indicators of the operating status of the team.

4. RJ45 connector for local manager connection or remote

5. Eight STM-1 optical interfaces of type S1.1.

6. Matrix switching and circuitry.

7. Two connectors for signal input synchronization.

8. Two connectors for the input of the power supply -48 Vdc.

9. Two STM-4 optical interfaces of type S4.1.

Figure 3

Figure 3 represents a general diagram of blocks of the Manageable Digital Dealer with capacity for 63 tributaries (RDG1-2M).

The description of the different parts of the General block diagram is as follows:

1. TU12 granulation switching matrix and circuitry

2. to 5. STM-1 optical interfaces of type S1.1.

6. Connectors for signal input synchronization.

7. RJ45 connector for local manager connection or remote

8. Impedance adapter.

9. Coaxial connector panel for tributaries at 2 Mbit / s.

10. 63 x 2 Taxes of 2 Mbit / s. (Tx and Rx).

Figure 4

Figure 4 represents a general diagram of blocks of the Manageable Digital Dealer with capacity for 252 tributaries (RDG4-2M).

The description of the different parts of the General block diagram is as follows:

1. TU12 granulation switching matrix and circuitry

2. and 11. Optical interfaces STM-4 of type S4.1.

3. to 10. Optical interfaces STM-1 of type S1.1.

12. Connectors for signal input synchronization.

13. RJ45 connector for local manager connection or remote

14. Impedance adapter.

15. Coaxial connector panel for tributaries at 2 Mbit / s.

16. 252 x 2 Taxes of 2 Mbit / s. (Tx and Rx).

Embodiment of the invention

Figure 5

Figure 5 illustrates a communications center where three line teams that link with three others coincide Communications centers The equipment can be from the same operator or an interconnection between telephone operators.

SDH (A), (B) and (C) devices use the same Manageable Digital Dealer (1) to perform the interconnections between them and for the extraction of tributaries

The teams and the Manageable Digital Dealer are interconnected by fiber optic hoses (3) through of optical interfaces of type S.1.1.

The tributary of 2 Mbit / s. 01 of the Delivery Man Digital Manageable (1) has been connected in a protected way through from optical interfaces 01 and 02 to line equipment (A) that It has a card with two S.1.1 interfaces in configuration 1 + 1. In the case of failure of one interface, the signal switches the other interface and service is maintained.

The tributary of 2 Mbit / s. 02 of the Delivery Man Digital Gestionable (1) has connected to the line equipment (A) to through the optical interface 02, the tributary of 2 Mbit / s. 62 has connected to the line device (B) through optical interface 03 and the tributary of 2 Mbit / s. 63 has connected to the line equipment (C) via optical interface 04 (4).

All interconnections between teams as well as the tributary allocations of 2 Mbit / s. and supervision of the Managed Digital Dealer are made from the center of Remote management through the IP network (5).

Claims (8)

1. Manageable Digital Distributor characterized by interconnections between the 2 Mbit / s interfaces. of the connector area and the SDH optical interfaces of the card area, as well as interconnections between the 2 Mbit / s interfaces themselves. or between the SDH interfaces themselves through the switching matrix. The Manageable Digital Dealer is constituted by the following structural elements: Connector area (2 Mbit / s interfaces):

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Where the connectors are housed coaxial for the extraction of the tributaries of 2 Mbit / s

Card area, where the following are housed elements:

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Switching matrix with TU-12 granulity and circuitry.

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Status indicators of team's functioning.

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SDH optical interfaces STM-1 of type S1.1. (6 for RDG1-2M and 8 for RDG4-2M.)

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SDH optical interfaces STM-4 of type S4.1. (2 for RDG4-2M).

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Two connectors for input The sync signal.

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RJ45 connector for connection of local or remote manager.

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Adapter impedances

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Two connectors for the -48 Vdc power.

2. Manageable Digital Distributor according to the preceding claim, characterized by connecting to other SDH equipment and / or other Manageable Digital Distributors through the optical interfaces and performing the extraction of 2 Mbit / s circuits. of any of them by the connector area without modifying the wiring structure. 3. Manageable Digital Distributor according to the preceding claims, characterized by connecting to other equipment through the 2 Mbit / s interfaces. (126 coaxial connectors for the RDG1-2M. And 504 coaxial connectors for the RDG4-2M). The signal of each 2 Mbit / s interface. is mapped to TU-12 level and sent to the matrix switching that interconnects each TU-12 with the STM-1 frame programmed, where it is mapped and sent towards the corresponding optical interface (direction of transmission. Reverse for reception). 4. Manageable Digital Delivery of 2 Mbit / s. according to the preceding claims, characterized by being manageable locally or remotely. The structural characteristics for the Management are as follows:

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Local management that is done connecting the Local Manager to the RJ45 connector of the Digital Distributor Manageable through a cable.

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Remote management that is done connecting the Local Manager or the Network Manager to the RJ45 connector of the Managed Digital Delivery through an IP network.

5. Manageable Digital Delivery of 2 Mbit / s. according to the preceding claims, characterized by having a software that connected to the local or network Manager allows the following functions to be carried out:

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Parameter predisposition operating features of the Managed Digital Dealer (designation of equipment, types of interfaces equipped, priority of the synchronization source, Ethernet address, etc.).

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Activation and deactivation of 2 Mbit / s tax ports.

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Activation and deactivation of Optical interfaces

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Activation and deactivation of the TU-12 cross-connections in the switching matrix coming from the optical interfaces to the 2 Mbit / s interfaces. or between them and vice versa.

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Alarm display of the common parts of the Managed Digital Dealer (Software, synchronization, power etc.).

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Alarm display of 2 Mbit / s tributaries (signal loss, error rate, etc.).

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Alarm display of Optical interfaces (loss of optical signal. degradation of laser, error rate, etc.)

6. Manageable Digital Delivery of 2 Mbit / s., According to the preceding claims. characterized by the possibility of protecting 2 Mbit / s circuits. through different optical interfaces connected to one or more SDH devices. 7. Manageable Digital Delivery of 2 Mbit / s., According to the preceding claims. characterized by providing information on the cross-connections made in the connection matrix through the Local Manager or the connected Network Manager. 8. The 2 Mbit / s Manageable Digital Distributor according to the preceding claims, characterized by synchronizing with the input signal of either of the two connectors for synchronization or extracting the synchronization signal from any of the connected optical interfaces, as predispose with the local Manager.