| 摘要 |
PURPOSE:To make stable the output, by providing an attenuator and a level shift device at the reception circuit side. CONSTITUTION:An attenuator 7 attenuates the differential input level of a recep- tion circuit not to be saturated and avoids to detect the noise in other transmission/ reception circuits not during transmission as a signal. Further, a level shifter 8 makes correction against the case when all the transmission circuits interrupt the transmission. |
