| 摘要 |
PURPOSE:To settle the output potential of the receiving circuit to a constant value, by connecting series resistances between both ends of the matching terminating resistance, which is connected between two lines of the balanced transmission line, and differential input terminals of the receiving circuit and by applying the offset potential across differential input terminals. CONSTITUTION:One end of matching terminating resistance 5 is connected to differential input terminal 6 of receiving circuit 8 through series resistance 10. The other end of resistance 5 is connected to differential input terminal 7 of circuit 8 through series resistance 11. At the normal operation time, the signal level from transmission circuit 1 and the noise level generated on balanced transmission line 4 are attenuated by resistances 10 and 11. For the release of transmission line 4, the short-circuit fault, or the fault or power break of circuit 1, the output potential at output terminal 9 of circuit 8 is settled to a constant potential because a constant offset potential is applied across terminals 6 and 7 of circuit 8. |
