| 摘要 |
PURPOSE:To provide a transmitter in which a system whose constitution is simple, and extendability is improved can be constituted. CONSTITUTION:A light transmitter 1 inputs a direct current light to one edge of an optical fiber 2. Plural modulators 5 modulate carrier signals by video signals from each monitor camera 4. Plural external modulators 3 connected with each modulator 5, and serially connected with the optical fiber 2, modulate optical signals passing through the optical fiber 2 by the carrier signals from the modulators 5. A light receiver 11 connected with the other edge of the optical fiber 2, receives the optical signals. Then, the carrier signals from each modulator 5 are frequencies different at each external modulator 3. |
