JP2003264645A - xDSL COMMUNICATION RELAY EQUIPMENT CASING - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To package an xDSL communication relay equipment adaptable to a 19-inch rack and to continuously use the xDSL communication relay equipment even when any unexpected situation occurs without exerting an adverse influence upon the packaged xDSL communication relay equipment even when a casing is installed outdoors. <P>SOLUTION: The xDSL relay equipment casing houses one or more xDSL modems having a size based on a 19-inch rack standard for performing high- speed communications by using metal cables and a router 163 for sending data from a present network via the xDSL modems or capturing data into the present network and further, the casing incorporates an air conditioning facility to be used for adjusting the temperature of the xDSL communication relay equipment and a power unit provided with a storage battery for backing up the power source of the xDSL communication relay equipment. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to xDSL (xDSL) for high-speed communication using an existing metal cable such as a telephone line.
Digital Subscriber Line) xDSL communication relay device storage box installed as a relay point for relaying communication.

[0002]

2. Description of the Related Art An electronic equipment storage box (hereinafter simply referred to as a storage box) for mounting electronic equipment such as a switchboard and an optical fiber terminal device is known. As shown in FIG. 8, this type of storage box provides for unexpected situations such as power outages and sudden voltage drops.
UPS (Uninterrupted Power Supply) is often built in. UPS can
The built-in battery output is converted into AC by a converter, and power is supplied to the electronic equipment mounted in the housing box to realize continuous operation.

By the way, ADSL (Asymmetr) has been adopted as a method for performing high-speed communication using an existing metal cable such as a telephone line.
ic Digital Subscriber Line), SDSL (Symmetr
icDigital Subscriber Line), HDSL (High-bit-
rate Digital Subscriber Line), VDSL (Very
high-data-rate Digital Subscriber Line) and the like, which are collectively referred to as xDSL. xDSL is
Since high frequencies are used to increase the amount of information transmission, there are many restrictions in terms of current transmission distance and speed.

[0004]

In the case of SDSL communication, for example, it is said that the communication quality of a metal cable is deteriorated due to noise or the like when a maximum distance of 5 km or more is set (in the case of ADSL communication, the maximum is possible). About 3 km). Therefore, in the above-mentioned xDSL communication, a modem or a DSL
By placing the relay equipment composed of AM and router, it is possible to widen the distance where the communication by the metal wire is possible.
Further, the size of the above-mentioned device tends to be too large in view of recent housing circumstances, and it is conceivable to secure a space to be installed outdoors for a user who does not have a space to install an electronic device.

The present invention has been made in view of the above-mentioned circumstances, and makes it possible to mount a relay device compatible with a 19-inch rack, and even if the relay device is installed outside the room where the use environment changes drastically, the operating environment of the relay device is also mounted. In addition, the built-in power supply unit equipped with a storage battery is built-in as standard, so that the relay equipment installed can be used continuously even in the event of an unforeseen situation such as a power outage or sudden voltage drop. It is an object to provide a possible xDSL communication relay device storage box. In addition, the DS in the above-mentioned xDSL communication relay device storage box
LAM (Center side aggregate modem: Digital Subscriber L
It is also an object of the present invention to provide an xDSL communication relay device storage box that enables xDSL communication to the surrounding area under the relay point by further storing the ine access multiplexer.

[0006]

In order to solve the above-mentioned problems, the present invention is an xDSL communication relay device storage box installed as a relay point for relaying xDSL communication, and conforms to the 19-inch rack standard. 1 or more xDS that has a size that enables high-speed communication using a metal cable
An L modem and a router that sends out data from the own network via the xDSL modem or fetches data into the own network are housed, and the xDSL modem and the air conditioning equipment used for temperature adjustment of the router, and the xD.
It features a built-in power supply unit including a storage battery that backs up the power supply of the SL modem and router.

According to the present invention, the restriction in terms of speed due to the transmission distance generated when xDSL uses high frequency is eliminated, and the xDSL communication relay device storage box has 19
Since an inch rack compatible relay device is installed in advance, the user can configure the system simply by installing it. Furthermore, since it is equipped with air conditioning equipment, the xDSL communication relay device installed even outdoors can be installed. XDSL communication relay equipment storage that does not adversely affect the operation and that the built-in backup storage battery is built-in as standard equipment so that the relay equipment installed can be used continuously even when an unexpected situation such as a power failure occurs. A box can be provided. Here, xDSL is ADSL, HDSL, SDSL, V
A high-speed communication system that uses a DSL metal cable, which is asymmetrical from 64k to 1.4Mbps (upstream) /1.5
.About.8 Mbps (downstream), symmetrical 1.5-2 Mbps, symmetrical 768 k-2 Mbps, asymmetrical 2-6 bps (upstream) / 26-52 Mbps (downstream).

Further, in the present invention, it has a size conforming to the 19-inch rack standard and constructs an xDSL network with terminal devices located under the relay point D
The SLAM is further stored. According to the present invention, in addition to relaying the xDSL communication, the DSLAM constructs the xDSL network in the surrounding area under the control of the relay point, so that the application range of the xDSL communication is expanded.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram cited for explaining a communication infrastructure to which an xDSL communication relay device storage box of the present invention is connected. In FIG. 1, reference numerals 11 to 15 denote communication devices installed at each site, and an original IP network is constructed by using an existing metal cable such as a telephone line. Reference numeral 16 is an xDSL communication relay device storage box of the present invention,
For example, in the case of SDSL communication, it is required when the bases are provided at a distance of 5 km or more. The metal cable is
In the case of SDSL, if the distance is 5 km or more, the communication quality will deteriorate due to noise and the like.
Alternatively, it is necessary to install a relay device such as a modem for relaying at intervals less than that.

Therefore, for example, an original IP (Internet
The xDSL communication relay device storage box 6 of the present invention is installed between the base A and the base B that perform SDSL communication using the (Protocol) network, and further, the DSLAM 164 stored in the xDSL communication relay device storage box 6 (see FIG. 2)) to connect terminal devices in the surrounding area to
Enables construction of ADSL network within m range. By the way,
In the case of ADSL communication, the guaranteed range of communication quality is 3 km.

FIG. 2 shows an example of a device configuration stored in the xDSL communication relay device storage box of the present invention. Here, two SDSL modems 16 connected to the original IP network
1, 162, a router 163, and a DSLAM 164 are housed. The SDSL modems 161 and 162 are sizes that comply with the 19-inch rack standard, and are SDSL high-speed communication using a metal cable. Router 1
63 also has a size conforming to the 19-inch rack standard, checks the destination of data, and uses SDSL modems 161 and 1
It is a network interconnection device that sends out data from the ADSL network, which is its own network, or takes in data to the ADSL network via 62.

The DSLAM 164 has a size conforming to the 19-inch rack standard, and performs ADSL conversion, for example, with a terminal device in the peripheral area under the relay point,
It is an integrated modem capable of constructing a DSL network. Through this DSLAM 164, an ADSL network can be constructed between the ADSL modem and the local residents having a terminal device such as a personal computer.

FIG. 3 is a view showing the external structure of the xDSL communication relay device storage box 16 of the present invention. In addition, in FIG.
As shown in the dimensional plan view, the xDSL communication relay device housing box 1 in which two sets of 19-inch racks are installed
6 is shown, and a double door 2 is attached to the front and rear surfaces of the storage box body. By opening and closing the door 2, it is possible to take out and put in electronic equipments and the like mounted therein. Further, by locking the door 2 on both the front and rear surfaces, it is possible to protect the mounted xDSL communication relay device for crime prevention by prohibiting opening and closing. In addition, the door 2 has a back edge that is waterproofed and dustproofed by a rubber packing or the like.
When closed, the xDS
Consideration is given to obtaining an optimal space for operating the L communication relay device. Furthermore, it is assumed that the housing box itself is covered with a refractory metal.

Reference numeral 3 is an air-conditioning facility, and is shown only in a portion that is outside the housing box. In FIG. 3, a simple air conditioning unit including a heat exchanger (not shown) and a fan drive unit is embedded in the ceiling of the housing box body. Specifically, the air outlet in the accommodation box is connected to the air outlet of the unit main body by a duct, and the air in the accommodation box is sucked into the air intake side of the unit main body from the ventilation port provided on the ceiling surface. The air inside the accommodation box is conditioned by blowing out the conditioned air that is conditioned to a predetermined temperature from the outlet of the ceiling. The air conditioner 3 may also have a system in which an indoor unit of a home air conditioner is built in.

The xDSL communication relay device housing box 16 has a power supply unit (not shown). FIG. 5 shows the internal structure of the power supply unit. As shown in FIG. 5, the power supply unit 4 includes a rectifier 41 and a DC / AC converter 42. The commercial power supply 100V is supplied to the rectifier 41, converted into DC by the AC / DC converter 411 in the rectifier 41, DC power can be supplied, and is connected to the DC-driven electronic device 5 mounted in the housing box 16. . In addition, the rectifier 41
The output of is further connected to the AC-driven electronic device 6 via the DC / AC converter 42.

The power supply unit 4 is characteristically capable of DC power supply, and the user can connect the DC-driven electronic equipment 5 without separately preparing a DC power supply facility. Generally, the DC-driven electronic device 5 consumes less power and has less power failure than the AC-driven electronic device 6. Therefore, the xDSL communication relay device storage box 1 of the present invention
6, it is possible to construct network equipment with low power consumption and high reliability. In addition, the AC driven electronic device 6
Can be connected via the DC / AC converter 42.

FIG. 6 shows a JIS for a 19-inch rack.
Standard (Japanese Industrial Standard) JIS C6010-2 (Appendix 0), FIG. 7 shows details of EIA standard (American Standards Association / Electronic Machinery Manufacturers Association) ANSI / EIA-310-D (Part 1). There is. Storage box, unit chassis 1
Standards relating to 9-inch racks include domestic JIS standards and European and American standards represented by EIA standards in the United States, and are standardized in Japan at the same time. According to the JIS standard, the width of the unit chassis is a multiple of 480 mm and the height is 50 mm, and the mounting hole dimensions of the 19-inch rack for storing this are a width pitch of 465 mm and a height pitch of 50 mm.
It is in mm increments.

According to the EIA standard, the width of the unit chassis is 482.6 mm (19 inches) and the height is 44.45 mm.
It is a multiple of (1.75 inches), and the mounting hole size of the 19-inch rack that stores this is a width pitch of 46.
5.1 mm, height pitch is 15.875 mm-15.
There are two types: a repeating universal pitch of 875 mm-12.7 mm and a repeating wide pitch of 31.75 mm-12.7 mm. In the IEC standard (International Electrotechnical Commission) IEC 60297-1, DIN standard (German federal standard) DIN 41 494, page 1, only wide pitch is adopted.

As described above, the present invention provides an xDSL communication relay device storage box in which the restrictions in terms of transmission distance and speed caused by the use of high frequencies in xDSL are eliminated. Also, xDSL compatible with 19-inch rack
An unexpected situation such as a power failure has occurred because the communication relay device can be stored and does not have an adverse effect on the xDSL communication relay device installed even when installed outdoors and has a built-in backup storage battery as standard. The present invention also provides an xDSL communication relay device storage box that can continue to use the xDSL communication relay device installed. In addition, by mounting a rectifier that supplies DC power, it becomes possible to mount DC-driven electronic equipment that suppresses power consumption and has few power supply failures, and contributes to improved reliability.

In the above-described embodiment, an example used in the network configuration shown in FIG. 1 has been described, but the present invention is not limited to this, and for example, the communication devices 11 to 15 installed at each base in FIG. As xD of the present invention
It is also possible to use a device during SL communication.

[0021]

As described above, according to the present invention, xD
The restriction in terms of transmission distance and speed caused by using high frequency for SL is solved, and since a relay device compatible with a 19-inch rack is installed in advance in the xDSL communication relay device storage box, the user is The system can be constructed simply by installing. Furthermore, since it is equipped with air-conditioning equipment, it does not adversely affect the operation of the xDSL communication relay equipment that is stored even when installed outdoors, and by incorporating a backup storage battery as standard, an unexpected situation such as a power outage can occur. It is possible to provide an xDSL communication relay device storage box in which the installed xDSL communication relay device can be continuously used even if it occurs.

Further, according to the present invention, the xDS mounted
L communication relay equipment is equipped with a rectifier that supplies DC power, so that DC power can be supplied, and the xDSL communication relay equipment installed in the xDSL communication relay equipment storage box that operates on direct current can be used without preparing DC power supply equipment. Will be possible. Furthermore, by further including a DC / AC converter that supplies AC power to the mounted xDSL communication relay device, xD
Operated by AC installed in SL communication relay equipment storage box x
The DSL communication relay device can continue to operate even in an unexpected situation such as a power failure. Also, by incorporating a locking mechanism into the door that can be opened and closed freely, the xDSL communication relay device that is installed can be protected, crime prevention effect can be obtained, and the inside of the door that can be opened and closed can be attached to the main body. By applying the waterproof / dustproof treatment, it is possible to prevent intrusion of water and dust, and to use the xDSL communication relay device, which is difficult to use outdoors, in a good environment.

[Brief description of drawings]

FIG. 1 is a diagram cited for explaining a communication infrastructure to which an xDSL communication relay device storage box of the present invention is connected.

FIG. 2 is a diagram showing an example of a device configuration stored in an xDSL communication relay device storage box of the present invention.

FIG. 3 is a diagram showing an external structure of an xDSL communication relay device storage box of the present invention.

FIG. 4 is a plan view of an xDSL communication relay device storage box of the present invention.

FIG. 5 is a block diagram showing an internal configuration of a power supply unit incorporated in an xDSL communication relay device storage box of the present invention.

FIG. 6 JIS C 60 for a 19-inch rack
It is the figure quoted in order to demonstrate the detail of 10-2 (Appendix 0).

FIG. 7 ANSI / EIA for 19-inch racks
It is the figure quoted in order to demonstrate the detail of -310-D (the 1st part).

FIG. 8 is a block diagram showing an internal configuration of a power supply unit incorporated in a conventional xDSL communication relay device storage box.

[Explanation of symbols]

2 ... Door, 3 ... Air conditioning equipment, 4 ... Power supply unit, 11, 1
2, 13, 14, 15 ... Communication equipment, 16 ... xDSL communication relay equipment storage box, 41 ... Rectifier, 42 ... DC / AC converter, 411 ... AC / DC converter, 412 ... Backup battery, 5 ... DC drive Electronic equipment, 6 ... AC driven electronic equipment, 161, 162 ... SDSL modem, 163 ... Router, 164 ... DSLAM

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hiroshi Doi             3-4-1 Shibaura, Minato-ku, Tokyo Co., Ltd.             Within NTT Facilities (72) Inventor Masuyama Akihisa             3-4-1 Shibaura, Minato-ku, Tokyo Co., Ltd.             Within NTT Facilities F-term (reference) 4E360 AB16 AB54 AB64 BA06 BB23                       CA02 EA29 EC11 FA07 FA12                       FA17 GA22 GA23 GA24 GA26                       GA29 GB22 GB32 GB95                 5E322 BB03 EA01                 5K101 KK20 LL01 MM05

Claims (2)

[Claims] 1. An xDSL communication relay equipment storage box grounded as a relay point for relaying xDSL communication, having a size conforming to a 19-inch rack standard, and performing high-speed communication using a metal cable. XDSL modem and a router that sends out data from the own network via the xDSL modem or takes in data into the own network are housed, and the xDSL modem and the air conditioning equipment used for temperature adjustment of the router, and the xDSL
An xDSL communication relay device storage box with a built-in power supply unit that includes a storage battery that backs up the power supply for the modem and router. 2. A terminal device having a size conforming to the 19-inch rack standard and being connected to a terminal device located under the relay point.
The xDSL communication relay device storage box according to claim 1, further comprising a DSLAM for constructing a DSL network.