Claims
- 1. An optical fiber network comprising:a line station and at least one cable, the cable extending from a head end to a far end and holding a plurality of ribbon fibers each including individual optical fibers, the cable connected to the line station at the head end for transmitting and receiving information on the individual optical fibers included in the ribbon fibers; a plurality of spaced apart branching points provided at different locations of the cable between the head end and the far end of the cable, at each branching point at least one of the ribbon fibers being cut-off and at least one of the individual optical fibers in a cut-off ribbon fiber being connected to a subscriber, so that a cut-off ribbon fiber is divided into one head end ribbon fiber piece extending from the head end to one of the branching points and one far end ribbon fiber piece extending from said one of the branching points to the far end; and wherein in at least one of the branching points there is an end of an individual optical fiber in a head end ribbon fiber piece which is not connected to a subscriber and this end is connected to an end of an individual optical fiber in a far end ribbon fiber piece.
- 2. An optical fiber network comprising:at least one cable, the cable extending from a head end to a far end and holding a plurality of ribbon fibers each including individual optical fibers, the cable connected to a line station at the head end for transmitting and receiving information on the individual optical fibers included in the ribbon fibers; the optical fiber network further comprising a plurality of spaced apart branching points provided at different lengthwise locations of the cable between the head end and the far end of the cable, wherein at each branching point at least one of the ribbon fibers is cut-off and at least one of the individual optical fibers in a cut-off ribbon fiber is connected to a subscriber, so that a cut-off ribbon fiber is divided into one head end ribbon fiber piece extending from the head end to one of the branching points and one far end ribbon fiber piece extending from said one of the branching points to the far end; and wherein in at least one of the branching points subscribers are connected to individual optical fibers included in the head end ribbon fiber piece and the far end ribbon fiber piece of one of the ribbon fibers.
- 3. An optical fiber network comprising:at least one cable, the cable extending from a head end to a far end and holding a plurality of ribbon fibers each including individual optical fibers, the cable connected to a line station at the head end for transmitting and receiving information on the individual optical fibers included in the ribbon fibers; the optical fiber network further comprising a plurality of spaced apart branching points provided at different lengthwise spaced apart locations between the head end and the far end of the cable, at each branching point at least one of the ribbon fibers being cut-off and at least one of the individual optical fibers in a cut-off ribbon fiber being connected to a subscriber, so that a cut-off ribbon fiber is divided into one head end ribbon fiber piece extending from the head end to one of the branching points and one far end ribbon fiber piece extending from said one of the branching points to the far end; and wherein at the far end of the cable at least one of the individual optical fibers included in one of the ribbon fibers is connected to an individual optical fiber included in another of the ribbon fibers.
- 4. The optical fiber network of claim 3, wherein at the far end of the cable at least one of the ribbon fibers is connected to another of the ribbon fibers, so that all the individual optical fibers included in said one of the ribbon fibers are connected to an individual optical fiber included in said another of the ribbon fibers.
- 5. An optical fiber network comprising:at least one cable, the cable extending from a head end to a far end and holding a plurality of ribbon fibers each including individual optical fibers, the cable connected to a line station at the head end for transmitting and receiving information on the individual optical fibers included in the ribbon fibers; the optical fiber network further comprising a plurality of spaced apart branching points provided at different spaced apart locations between the head end and the far end of the optical cable, at each branching point at least one of the ribbon fibers being cut off and at least one of the individual optical fibers included in a cut-off ribbon fiber connected to a subscriber, the line station comprising line boards each adapted to be connected to only one of the ribbon fibers; and wherein at the head end of the cable at least two of the ribbon fibers are connected to the same line board so that there are individual optical fibers included in each of said at least two ribbon fibers which arc not connected to the line board.
Priority Claims (2)
Number |
Date |
Country |
Kind |
9702347 |
Jun 1997 |
SE |
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9702348 |
Jun 1997 |
SE |
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Parent Case Info
This is a continuation of PCT application No. PCT/SE98/01181, filed Jun. 18, 1998.
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Continuations (1)
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Number |
Date |
Country |
Parent |
PCT/SE98/01181 |
Jun 1998 |
US |
Child |
09/465937 |
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US |