| 摘要 |
PURPOSE:To avoid the failure of entire system even with breaking of wire of transmission line, by the series connection of transmission line connected to a plurality of receivers at the transmitter side and connecting Zener diodes between the transmission lines. CONSTITUTION:Signal current is delivered to the receivers 4-1, 4-2 via the transmission lines 3-1, 3-2 in series connection at the transmitter 1 side from the signal source 2 of the transmitter 1. Further, if breaking of wire of transmission lines 3-1, 3-2 is caused, the Zener diodes 5-1, 5-2 are conductive to assure the supply of the signal current to the receivers 4-1, 4-2. |
