| 摘要 |
<p>An optical transmission module (1) is provided with a light transmitting section (10, 11 and 12) which outputs inputted electric signals after converting the electric signals into optical signals, a light receiving section (13, 14 and 15) which outputs inputted optical signals after converting the optical signals into electric signals, and control means (17) which controls the light transmitting and receiving sections by selecting a synchronous transfer mode or a burst transfer mode of the sections in accordance with the case that the electric signals are synchronously transferred together with synchronous clock signals and data signals or the case that the electric signals are burst-transferred excepting the synchronous clock signal. The control means (17) receives control information specifying the transfer mode, the synchronous transfer mode or burst transfer mode, from the light receiving section and holds the control information in an electrically erasable programmable flash memory (173). A CPU (170) controls the light transmitting and receiving sections in the synchronous or burst transfer mode based on the control information. Therefore, the transmission mode of an optical transmission system to an electric signal system can be easily changed through such a simple operation as the rewrite of the control information.</p> |
