| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical transceiver for flexibly facilitating countermeasures to the change of SFP specifications with respect to the write-in of data in an ROM incorporated in an optical transceiver. SOLUTION: This optical transceiver is provided with: a transmission part for transmitting an optical signal; a reception part for receiving the optical signal; a memory having the protection terminal of data write-in; and a monitoring control part for controlling the transmission part and the reception part on the basis of a set value set in the memory. This optical transceiver has a first power supply terminal for supplying a power supply voltage to the transmission part and the memory and a second power supply terminal for supplying a power supply voltage to the reception part and the protection terminal. When a voltage is applied to the second power supply terminal, the protection terminal invalidates the write-in of the data, and when the voltage is applied to the second power supply terminal, the protection terminal validates the write-in of the data. COPYRIGHT: (C)2010,JPO&INPIT
|
