| 摘要 |
PURPOSE:To eliminate the complexity of a wiring network and reduce the cost of installation by connecting an information reader and each meter through a two-core wiring network which extends into multistage hierachical connection constitution. CONSTITUTION:The two-core wiring network 3 which extends into multistage hierachical constitution is connected to terminals 2a and 2b of the information reader 1 provided at a meter inspection center side. Ten systems are separated in parallel from hierachies 4, 6, and 8, and respective meters 10-1-10-10 are read selectively by receivers 14-1-16-10 corresponding in 1:1 proportion to latching relays 11-1-13-10 connected by two-core lines 5-1-5-10, 7-1-7-10, and 9-1-9-10. |
