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Title:
OPTICAL FIBER INSTALLATION KIT AND CORRESPONDING METHODS FOR USING AND MANUFACTURING THE SAME
Document Type and Number:
WIPO Patent Application WO/2020/011334
Kind Code:
A1
Abstract:
An optical fiber installation kit comprises a box (1), an optical fiber cable (41) and an optical termination module (3) attached to a first end (43) of the optical fiber cable (41). The box (1) surrounds a compartment that is divided by an inclined plate (2) into a first wedge-shaped storage area (B) and a second wedge-shaped storage area (A). The first wedge-shaped storage area (B) comprises a length of the optical fiber cable looped in a folded figure-8 arrangement in which the cross over section of the folded figure-8 arrangement is placed near a narrow part of the first wedge-shaped storage area (B). The first end of the optical fiber cable is routed to the second wedge-shaped storage area, which comprises the optical termination module.

Inventors:
LAVENNE ALAIN (IT)
PIRRI ALESSANDRO (IT)
LE DISSEZ ARNOUD (IT)
GARCIA MARTA (IT)
TATAT OLIVIER (IT)
Application Number:
PCT/EP2018/068542
Publication Date:
January 16, 2020
Filing Date:
July 09, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
PRYSMIAN SPA (IT)
International Classes:
G02B6/44; B65D81/00; B65D85/04; B65D85/67; B65H55/00; B65H75/00
Domestic Patent References:
WO2015161863A12015-10-29
WO2018010783A12018-01-18
Foreign References:
US20060183362A12006-08-17
JPS59126818U1984-08-27
EP2264502A12010-12-22
US7330627B22008-02-12
Attorney, Agent or Firm:
WINDAL, Gaƫlle (FR)
Download PDF:
Claims:
CLAIMS

1. An optical fiber installation kit comprising a box (1), an optical fiber cable (41) and an optical termination module (3) attached to a first end (43) of the optical fiber cable,

wherein the box (1) surrounds a compartment that is divided by an inclined plate (2) into a first wedge-shaped storage area (B) and a second wedge-shaped storage area (A), wherein the first wedge-shaped storage area (B) comprises a length of the optical fiber cable looped in a folded figure-8 arrangement in which the cross over section of the folded figure-8 arrangement is placed near a narrow part of the first wedge-shaped storage area, and

wherein the first end (43) of the optical fiber cable (41) is routed to the second wedge-shaped storage area (A), which comprises the optical termination module (3).

2. The optical fiber installation kit of claim 1, wherein the inclined plate (2) is detachably arranged into the box (1).

3. The optical fiber installation kit of claim 1 or 2, wherein the second wedge-shaped storage area is located between an upper lid (12) of the box and said inclined plate (2), and wherein said first wedge-shaped storage area is located between said inclined plate and a bottom part of the box.

4. The optical fiber installation kit of any of claims 1 to 3, wherein the box (1) comprises a hole system (11, 21) through which a second end (42) of the optical fiber cable (41) is pulled out of the box, said hole system being arranged in a sidewall of a wide part of the first wedge-shaped storage area.

5. The optical fiber installation kit of any of claims 1 to 4, wherein the inclined plate is a N-shaped plate with a medium plane part (25) and two opposite ends comprising:

a first end (23) folded upward which comprises a first notch (22) through which the first end (43) of the optical fiber cable (41) is routed to the second wedge-shaped storage area (A);

a second end (24) folded downward which comprises a second notch (21) through which the second end (42) of the optical fiber cable (41) is pulled out of the box through said hole system (11, 21).

6. The optical fiber installation kit of any of claims 1 to 5, wherein the second wedge- shaped storage area also stores at least one optical termination module accessory.

7. The optical fiber installation kit of any of claims 1 to 6, wherein the box and the inclined plate are made of cardboard material.

8. The optical fiber installation kit of any of claims 1 to 7, wherein the upper lid, the bottom part of the box and the medium plane part of the inclined plate are square-shaped.

9. A method for using an optical fiber installation kit, comprising a box, an optical fiber cable and an optical termination module attached to a first end of the optical fiber cable, wherein said method comprises:

unwinding a length of the optical fiber cable from a first wedge-shaped storage area, comprised in a compartment surrounded by said box, said length of optical fiber cable being looped in a folded figure-8 arrangement in which the cross over section of the folded figure-8 arrangement is placed near a narrow part of the first wedge- shaped storage area,

removing from the box an inclined plate, dividing said compartment into said first wedge-shaped storage area and a second wedge-shaped storage area,

releasing the optical termination module attached to the first end of the optical fiber cable, which is routed to the second wedge-shaped storage area.

10. The method of claim 9, wherein unwinding the length of the optical fiber cable is preceded by pulling a second end of the optical fiber cable out of the box trough a hole system arranged in a sidewall of a wide part of the first wedge-shaped storage area.

11. A method of manufacturing an optical fiber installation kit, said optical fiber installation kit comprising a box, an optical fiber cable, an optical termination module attached to a first end of the optical fiber cable,

wherein it comprises:

coiling a length of the optical fiber cable in a figure-8 arrangement with a cross over section between respective first and second looped sections of the optical fiber cable,

folding the figure 8 arrangement at the cross over section with the first and second looped sections positioned overlapping each other,

laying said folded figure 8 arrangement into a first wedge-shaped storage area comprised in a compartment surrounded by said box and placing the cross over section of the folded figure-8 arrangement near a narrow part of the first wedge- shaped storage area, arranging an inclined plate into the box, said inclined plate dividing said compartment into said first wedge-shaped storage area and a second wedge-shaped storage, routing the first end of the optical fiber cable to the second wedge-shaped storage.

12. The method of claim 11, wherein, when folding the figure 8 arrangement, a second end of the optical fiber cable is arranged between said first and second looped sections.

13. The method of claim 11 or 12, wherein arranging said inclined plate into the box comprises folding said plate into a N-shaped plate with a medium plane part and two opposite ends, and

detachably arranging a first end folded upward on a back side wall of said box,;

- detachably arranging a second end folded downward on a front side wall of said box with a notch facing a hole system of said box, through which the second end of the optical fiber cable is routed out of the box ,

and wherein routing the first end of the optical fiber cable to the second wedge-shaped storage comprises routing said first end of the optical fiber cable through another notch arranged in said first end of the N-shaped plate.

Description:
Optical fiber installation kit and corresponding methods for using and manufacturing the same.

1. Technical field

The present invention relates generally to optical fibers installation kits, notably, but not exclusively, for FTTH ("Fiber To The Home") network access. In particular, the invention relates to an optical fiber installation kit comprising a storage box, an optical fiber cable, and an optical termination module.

2. Background Art

A FTTH network is a physical telecommunication network that allows very high-speed Internet access and in which the optical fiber terminates at the user's home or business premises. FTTH network corresponds to the deployment of the optical fiber cable from an optical connection node to the user's home or business premises. The optical connection node corresponds to the location of the operator's transmission equipment. Thus, the user receives the optical signal directly from the source.

The significant technical features of FTTH network are not only providing greater bandwidth, but also enhancing the transparency of the network to data formats, rates, wavelengths, and protocols and simplifying maintenance and installation.

FTTH network installation requires an optical fiber cable to be pulled between the optical connection node and the inside of the user's home. Thus, a FTTH network connection requires the installation of an optical termination module, also called connecting box, inside the user's home. The optical fiber cable is then connected, on the one hand, to the connecting box located at the user's home and on the other hand, to the optical connection node.

With the growth of FTTH networks, many different optical fiber installation kits have been developed. These optical fiber installation kits usually contain an optical termination module and an optical fiber cable, which needs to be pulled trough an inner conduit within the user's home to the optical connection node. Most installation kits on the market offer to store the optical fiber cable on a reel.

Patent document EP 2 264 502 discloses a device with a connecting box for mechanically connecting optical fibers of user to optical fibers that are arranged in the box and obtained from a fiber supply cable. The fiber supply cable is connected to the connecting box and wound on a winding unit e.g. reel. The connecting box and the winding unit are arranged inside an envelope. The envelope is provided with an opening permitting unwinding of the fiber supply cable outside the envelope.

However, for such disposable optical installation kits, the reel undergoes frictions when unwinding the optical fiber cable, which may cause the cable to get stuck or get damaged. Also, torsion may be generated in the optical fiber cable when the cable is coiled from the reel without rotating the reel.

Patent document US 7,330,627 discloses a cable arrangement, which includes a length of springy cable looped in a figure-8 arrangement with an intermediate cross over section between respective first and second looped sections of the cable. The figure-8 arrangement enables withdrawal of the cable from the arrangement with no more than a single twist of the cable to limit accumulated net linear twist of the cable while linearly extending the cable. The first and second looped sections may be positioned overlapping each other to provide a substantially toroid shaped cable arrangement. An optical device may be provided on one or both of the ends of the length of cable. The springy cable may be a fiber optic cable, such as flat drop cable.

Such a figure-8 arrangement is convenient, as it enables withdrawal of the cable from the arrangement without any friction or accumulated torsion and avoids damages to the optical fiber cable. Actually, by laying the coils in figure 8 patterns one above the other, the cable undergoes a twist about its axis each time. However, the twist in one turn is clockwise followed by one turn anti-clockwise, in the next turn. Thus, when the cable is eventually pulled from the coiled shape, it may not accumulate a net twist.

However, one drawback of this kind of optical installation kit is that installation of the optical fiber cable in an internal conduit up to the optical connection node requires unwinding the whole length of cable before the installation, as only one end of the optical fiber cable can be accessed through an opening in the housing. Thus, the installation of the optical fiber cable in the conduit up to the optical connection node is complicated and can cause damages to the cable, as well as entanglement.

No conventional optical fiber installation kit for optical fiber network access, and especially for FTTH network allows an optimized storage of the optical fiber cable, the connecting box and accessories, nor a simple use of this optical fiber installation kit in respect of the integrity of the optical fiber cable.

3. Summary An object of the present disclosure is to alleviate the drawbacks and insufficiencies resulting from the above-mentioned prior art.

In one particular embodiment, an optical fiber installation kit comprising a box, an optical fiber cable and an optical termination module attached to a first end of the optical fiber cable, is disclosed. The box surrounds a compartment that is divided by an inclined plate into a first wedge-shaped storage area and a second wedge-shaped storage area. The first wedge-shaped storage area comprises a length of the optical fiber cable looped in a folded figure-8 arrangement in which the cross over section of the folded figure-8 arrangement is placed near a narrow part of the first wedge-shaped storage are. The first end of the optical fiber cable is routed to the second wedge-shaped storage area, which comprises the optical termination module.

Such an optical fiber installation kit is particularly useful for installing an optical termination module and its optical fiber cable in an internal conduit up to the optical connection node for optical fiber network access.

In particular, such an optical fiber installation kit is of reduced format and easily transportable for convenient use in optical fiber network access, and in particular FTTH user connection in the inside of the user's home.

The inclined plate advantageously allows reducing to a minimum the storage space of the optical fiber cable when associated with a folded figure-8 arrangement of the optical fiber cable.

To this purpose, the optical fiber installation kit comprises a container, or box, that is separated into two distinct areas by an inclined plate, which shape and design allow defining a first storage area, aimed at storing the optical fiber cable and a second storage area, aimed at storing other components such as the optical termination module and corresponding accessories.

More precisely, a compartment surrounded by the box is divided into two distinct parts by the inclined plate, also called intermediate plate, namely a first wedge-shaped storage area and a second wedge-shaped storage area. The first wedge-shaped storage area is used for optical fiber cable storage without unwinder holder and the second wedge- shaped storage area for optical termination module, optical pickup accessories, mounting bracket and related accessories storage. In the first wedge-shaped storage area, a length of the optical fiber cable is looped in a figure 8 arrangement, with first and second looped sections of the cable overlapping each other.

This packaging configuration allows easy unwinding by simply pulling the optical fiber cable without using supports or devices, such as drums or reels, thus facilitating the optical fiber cable installation operation. Indeed, the figure-8 arrangement confers a simple unwinding without generating torsion or other constraint being able to disturb installation operation, as it is possible to linearly extend the length of cable with no more than a single twist of the cable.

Hence, the folded figure-8 arrangement of the optical fiber cable allows the optical fiber cable to be pulled without twisting, friction, jamming, tangling or other problems prone to affect its installation. Conditioning the cable in a figure-8 arrangement in the installation kit allows achieving an optical fiber cable installation without generating any particular stress, braking, or blocking of the optical fiber cable.

According to an aspect, the inclined plate is detachably arranged into the box.

Hence, it may be very easily removed from the box, without having to tear it apart, in order to offer access to the optical fiber cable stored in the first wedge-shaped storage area, or to gain access to the optical termination module stored in the second wedge-shaped storage area once the optical fiber cable is unwounded out of the box.

According to another aspect, the second wedge-shaped storage area is located between an upper lid of the box and said inclined plate, and the first wedge-shaped storage area is located between the inclined plate and a bottom part of the box.

Hence, when the box lies on the floor, the second wedge-shaped storage area is in the upper part of the box, while the first wedge-shaped storage area is below the second wedge-shaped storage area, in a lower part of the box.

According to another aspect, the box comprises a hole system through which a second end of the optical fiber cable is pulled out of the box, said hole system being arranged in a sidewall of a wide part of the first wedge-shaped storage area.

Hence, the optical fiber cable may be released continuously from the box, through the hole system, which avoids problems of entanglement. Moreover, the hole system allows for a continuous access to the length of optical cable in one piece without tearing or guide destruction. According to another aspect, the inclined plate is a N-shaped plate with a medium plane part and two opposite ends comprising:

a first end folded upward which comprises a first notch through which the first end of the optical fiber cable is routed to the second wedge-shaped storage area;

a second end folded downward which comprises a second notch through which the second end of the optical fiber cable is pulled out of the box through said hole system.

According to this embodiment, the inclined plate has a N-shape which advantageously allows optimizing the space by divided the box into two wedge-shaped storage areas. Moreover, such a N-shape helps in detachably arranging the inclined plate within the box, as the first end of the plate, which is folded upward may lean against a back sidewall of the box, while the second end of the plate, which is folded downward may lean against a front sidewall of the box.

The first notch arranged in the first end of the inclined plate allows the first end of the optical fiber cable to be routed to the second wedge-shaped storage area. The second notch of the second opposite end faces the hole system of the box to allow the second end of the optical fiber cable to be routed out of the box.

According to another aspect, the second wedge-shaped storage area also stores at least one optical termination module accessory.

For example, the optical termination module, optical pickup accessories, mounting bracket and related accessories are all stored in the second wedge-shaped storage area. The optical fiber cable is stored in another storage area corresponding to the first wedge-shaped storage area. The optical termination module, optical pickup accessories, mounting bracket and related accessories are advantageously directly accessible without altering the packaging area of the optical fiber cable.

This packaging arrangement allows space to be reduced and optimized. Thus, raw materials and manufacturing operations for the production of the product are reduced.

According to another aspect, the box and the inclined plate are made of cardboard material, notably recycle cardboard, which is cheap and environment friendly.

According to another aspect, the upper lid, the bottom part of the box and the medium plane part of the inclined plate are square-shaped. It thus allows the two looped sections of the folded figure 8 arrangement to be circular, which reduces stress on the length of optical cable, while stored in the installation kit.

The present disclosure also concerns a method for using an optical fiber installation kit, comprising a box, an optical fibre cable and an optical termination module attached to a first end of the optical fibre cable. Such a method comprises:

unwinding a length of the optical fiber cable from a first wedge-shaped storage area, comprised in a compartment surrounded by said box, said length of optical fiber cable being looped in a folded figure-8 arrangement in which the cross over section of the folded figure-8 arrangement is placed near a narrow part of the first wedge- shaped storage area,

removing from the box an inclined plate, dividing said compartment into said first wedge-shaped storage area and a second wedge-shaped storage area,

releasing the optical termination module attached to the first end of the optical fiber cable, which is routed to the second wedge-shaped storage area.

Hence, using the optical fiber installation kit provides a simple way to pull the optical fiber cable into an internal conduit up to the optical connection node for installing a FTTH network at a user's premises.

To this purpose, unwinding the length of the optical fiber cable is preceded by pulling a second end of the optical fiber cable out of the box trough a hole system arranged in a sidewall of a wide part of the first wedge-shaped storage area. A pulling system may be used and the optical fiber cable easily unwinds thanks to its figure-8 arrangement. The optical fiber cable is fully unwound after being installed in an internal conduit up to the optical connection node. After opening the upper lid of the box, the inclined plate is removed to release the optical terminal module and cable part of its packaging, without tearing or other constraining manipulations.

Thus, the optical fiber installation kit makes it possible to store and install, in one piece, guaranteeing the integrity and continuity of an optical fiber cable which two ends are equipped with equipment either facilitating installation in internal conduit for one end, or connected to a pre-mounted optical termination module on the other end. The present disclosure also relates to a method for manufacturing an optical fiber installation kit, said optical fiber installation kit comprising a box, an optical fiber cable, an optical termination module attached to a first end of the optical fiber cable.

Such a manufacturing method comprises:

coiling a length of the optical fiber cable in a figure-8 arrangement with a cross over section between respective first and second looped sections of the optical fiber cable,

folding the figure 8 arrangement at the cross over section with the first and second looped sections positioned overlapping each other,

laying said folded figure 8 arrangement into a first wedge-shaped storage area comprised in a compartment surrounded by said box and placing the cross over section of the folded figure-8 arrangement near a narrow part of the first wedge- shaped storage area,

arranging an inclined plate into the box, said inclined plate dividing said compartment into said first wedge-shaped storage area and a second wedge-shaped storage, routing the first end of the optical fiber cable to the second wedge-shaped storage. According to a further aspect, when folding the figure 8 arrangement, a second end of the optical fiber cable is arranged between said first and second looped sections. This optical fiber cable arrangement allows the cable to be pulled for installation, without generating friction, jamming or other problems affecting its implementation.

According to a further aspect, arranging said inclined plate into the box comprises folding said plate into a N-shaped plate with a medium plane part and two opposite ends, and

detachably arranging a first end folded upward on a back side wall of said box;

detachably arranging a second end folded downward on a front side wall of said box with a notch facing a hole system of said box, through which the second end of the optical fiber cable is routed out of the box. Moreover, routing the first end of the optical fiber cable to the second wedge-shaped storage comprises routing said first end of the optical fiber cable through another notch arranged in the first end of the N-shaped plate.

4. Brief description of the drawings The invention can be better understood with reference to the following description and drawings, given by way of example and not limiting the scope of protection, and in which:

figures 1A and IB are schematic views of a box and an inclined plate of an installation kit according to one embodiment of the present disclosure;

figure 2 is a schematic view of the folding process of an optical fiber cable looped in a figure-8 arrangement according to one embodiment of the present disclosure;

figure 3 is a schematic side view of an optical installation kit comprising a box divided into two parts by an inclined plate and storing a folded optical fiber cable looped in a folded figure-8 arrangement according to one embodiment of the present disclosure; figures 4A and 4B are views of the packaging of an optical fiber cable looped in a folded figure-8 arrangement and an optical terminal module according to the embodiment of figure 3;

figures 5A and 5B show detail views of the packaging of an optical terminal module in the second wedge-shaped storage area according to the embodiment of figure 3; figure 6 is a detail view of the hole system of the box facing a notch arranged in a second opposite end of the inclined plate according to the embodiment of figure 3; figures 7A and 7B are schematic side views of the process for using an optical installation kit, as shown in figure 3, comprising a box divided into two parts by an inclined plate and a folded optical fiber cable looped in a folded figure-8 arrangement which is pulled out of the box.

5. Detailed description

The present invention relates to an optical fiber installation kit, which may advantageously be used for deploying optical fiber network access. Many specific details of the invention are set forth in the following description and in figures 1 to 7.

Figures 1A and IB schematically illustrate an embodiment of a box 1 and an inclined plate 2 for an optical fiber installation kit. The box 1 and the inclined plate 2, also called intermediate plate, are for example made of cardboard, and more than 95% recyclable. Their shape and their dimensions can vary and it can be adapted to needs. For example the standard box is 28x27x6cm. The box 1 and the inclined plate 2 also include physical resistance characteristics for handling and storing such as resistance to shock, crushing, humidity and temperature variations. Figure 1A illustrates the box 1 which comprises a cover, or upper lid, 12 that closes the box 1 and a detachable inclined plate 2. The box 1 surrounds a compartment that is divided by the inclined plate 2 into a first wedge-shaped storage area B and a second wedge- shaped storage area A. The first wedge-shaped storage area B is situated under the second wedge-shaped storage area A and is used for optical fiber cable 41 storage (not illustrated). The second wedge-shaped storage area A is directly accessible for the user when opening the cover 12. The second wedge-shaped storage area A is used for storing an optical termination module 3, optical pickup accessories, a mounting bracket and related accessories (not illustrated).

The box 1 and the cover 12 comprise a hole system 11 for optical fiber cable 41 access. This hole system 11 comprises for example a notch in a sidewall of the box 1 and an other notch in a sidewall of the cover 12 facing the notch in the sidewall of the box 1. Both notches are for example substantially in the middle of the box and cover sidewalls. As it will be illustrated with figure 3 these opposite notches allow the cover 12 to form a hole with the box 1 once closed which allow the second end of the optical fiber cable 42 to be easily pulled out of the box 1.

Figure IB illustrates the inclined plate 2, which comprises a first end 23 folded upward, a second opposite end 24 folded downward and a central plane inclined part 25. The first end 23 comprises a first notch 22 and the second opposite end 24 comprises a second notch 21.

The second notch 21 is for example substantially located in the middle of the second opposite end 24. When the inclined plate 2 is placed in the box 1, the second notch 21 is placed in front of the hole system 11, as illustrated in figure 1A. The second notch 21 and the hole system 11 allow the second end of the optical fiber cable 42 to be pulled out of the box 1.

The first notch 22 is for example substantially located in the middle of the first end 23 of the inclined plate 2. The first notch 22 extends in part on the central inclined part 25 of the inclined plate 2. The first notch 22 allows the first end 43 of the optical fiber cable to be routed from the narrow part of the first wedge-shaped storage area B to the second wedge- shaped storage area A.

The inclined plate 2 divides the compartment surrounded by the box 1 and creates two distinct storage areas. Thus, the storage space is optimized to receive the optical fiber cable 41 and the optical terminal module 3 or other accessories for example optical pickup accessories, mounting bracket and related accessories.

Figure 2 illustrates an embodiment of the process for coiling and folding an optical fiber cable 41 looped in a figure-8 arrangement. The length of optical fiber cable 41 comprises a first end 43, which is attached to an optical terminal module 3 and a second end 42, which comprises a conventional pulling or pushing system for installation.

In the present example, after being looped in a figure-8 arrangement, a first looped section LI of the optical fiber cable 41 is folded over a second looped section L2 of the optical fiber cable 41. The second end 42 is placed between the two looped sections LI and L2 of the folded optical fiber cable 41 looped. Thus, the first end 43 and the second end 42 are on opposite sides of the optical fiber cable 41 looped in a figure-8 arrangement.

By laying the coils in figure 8 patterns one above the other, the optical fiber cable undergoes a twist about its axis each time. However, the twist in one turn is clockwise followed by one turn anti-clockwise, in the next turn. This pattern is repeated over and over as the figure 8 coils are laid down over each other.

The optical fiber cable 41 includes at the second end 42 a pulling or pushing system for installation of the optical cable 41 in an internal conduit up to an optical connection node, and at the other end an optical terminal module 3 for the user. These accessories are for example pre-installed on the optical fiber cable 41.

Once coiled and folded, the length of optical fiber cable with a figure 8 arrangement may be laid in a box, as shown in figure 3.

Figure 3 schematically shows an optical fiber installation kit according to one embodiment comprising a box 1 surrounding a compartment divided into two parts by an inclined plate 2, namely a first wedge-shaped storage area B and a second wedge-shaped storage area A.

In this example, the cross over section of the folded figure-8 arrangement of optical fiber cable 41 is placed near the narrow part of the first wedge-shaped storage area B. In other words, when the respective looped sections of the optical fiber cable are positioned overlapping each other, they extend from the intermediate cross-over section therebetween at an acute angle. This intermediate cross-over section is hence advantageously placed in the narrower part of the first wedge-shaped storage area. The second end 42 of the optical cable 41 is pulled out of the box from the larger part of the first wedge-shaped storage area B trough the second notch 21 (not illustrated) of the second opposite end 24 of the inclined plate 2 and the hole system 11 of the box 1. The optical terminal module 3 is stored in the second wedge-shaped storage area A. The first end 43 of the optical cable is routed from the narrow part of the first wedge-shaped storage area B to the second wedge-shaped storage area A trough the first notch 22 of the first end 23 of the inclined plate 2. As it can be seen in this example, the second wedge-shaped storage area A is placed on the top of the first wedge-shaped storage area B. This configuration allows a direct access for the user to the optical terminal module 3 without disturbing the optical fiber cable 41 arrangements.

The optical installation kit contains a length of user optical fiber cable used for standard optical fiber network, for example FTTH installations, between 5m and 50m for example.

In another example, the packaging could be done on 30m, but it is possible to store up to 50m of optical fiber cable 41 according to the shape of the box that can be adapted to needs.

According to the embodiment of figure 3, figures 4A and 4B show the optical fiber cable 41 looped in a figure-8 arrangement and placed in the box 1. More particularly, the optical fiber cable 41 is stored in the first wedge-shaped storage area B with the cross over section placed in the narrow part of this wedge-shaped storage area B, as defined by the inclined plate 2. The optical fiber cable 41 is folded with the second end 42 arranged between the two looped sections of the folded optical fiber cable 41. After detachably arranging the inclined plate 2 in the box 1, the second end 42 goes through the hole system 11 and through the second notch 21 of the second opposite end 24 of the inclined plate 2 (not illustrated). The first end 43 attached to the optical terminal module 3 is routed through the first notch 22 of the first end 23 of the inclined plate 2 (not illustrated) and the optical terminal module 3 can be stored in the second wedge-shaped storage area A as shown in figure 4B.

Figures 5A and 5B show the packaging details of an optical terminal module 3 in the second wedge-shaped storage area A according to the embodiment of figure 3. The first notch 22 of the inclined plate 2 is placed on top of the optical cable 41. The first end 43 of the optical fiber cable 41 attached to the optical terminal module 3 is routed from the narrow part of the first wedge-shaped storage area B (not illustrated) to the second wedge- shaped storage area A.

The second end 42 of the optical cable 41 is pulled out of the box 1 from the larger part of the first wedge-shaped storage area B and goes through the second notch 21 and the hole system 11. The second notch 21 of the second opposite end 24 of the inclined plate 2 is placed facing the hole system 11 as shown in figure 6.

According to the embodiment of figure 3, figures 7A and 7B illustrate a process for using the optical installation kit when the optical fiber cable 41 looped in a folded figure-8 arrangement is pulled out of the box 1. The optical fiber cable 41 end goes freely through the cover 12 and the inclined plate 2 trough the hole system 11. It allows the cable to be withdrawn at high speed with little or even no entanglement.

The second end 42 of the optical fiber 41 is pulled or pushed freely using a pulling or pushing system. Then, the optical fiber cable 41 is unwound from the first wedge-shaped storage area A. Thus, the optical fiber cable 41 is pulled out of the box without stress through the hole system 11 and the second notch 21 of the second opposite end 24 of the inclined plate 2. The figure-8 arrangement allows the optical fiber cable 41 to be unfolded without twisting.

The optical fiber cable 41 can be installed in an internal conduit up to the optical connection node without disturbing the packaging arrangement of the optical termination module 3 and without causing damages to the optical fiber cable 41.

When the whole length of optical fiber cable 41 has been pulled out, the cover 12 of the box 1 is opened to free the first end of the optical fiber cable 41 and the optical terminal module 3. As shown in figure 7B, the inclined plate 2 is removed from the box 1 to easily remove the optical terminal module 3 and the optical fiber cable 41. Thus, the installation of the optical fiber cable, especially in a FTTH network, is achieved continuously from one end to the other without tearing operations or other access constraints.