| 摘要 |
<p>A telecommunication network uses a single backup signal transmission path to provide a backup in the event of failure of any one of a plurality of primary signal transmission paths. Both the primary signal transmission paths and the backup signal transmission path include electrical signal paths and a converter for converting the electrical signal to an optical signal path. A plurality of fiber optic switches direct a fiber optic signal from the backup transmission path to an output of a primary signal transmission path which is subject to an error detection. Simultaneously, an electrical switch redirects the incoming electrical signal of the primary signal transmission path to the backup signal transmission path.</p> |
