| 摘要 |
PURPOSE:To attain the service at an optional mount position with low power consumption to all remote and near subscribers. CONSTITUTION:Each of subscriber circuits 1a-1n consists respectively of subscriber circuit main bodies 8a-8n, control circuits 9a-9n controlling the subscriber circuit main bodies 8a-8n, and built-in power supply circuits 6a-6n connecting to them. The built-in power supply circuits 6a-6n receive a power supply from a station power supply 11 to generate a subscriber terminal equipment power supply B and a low voltage power supply V to supply the subscriber terminal equipment power supply B to the subscriber circuit main bodies 8a-8n and to supply the low voltage power supply V to the control circuits 9a-9n. A B voltage of the built-in power supply circuits 6a-6n is set optionally in response to the distance from the station power supply 11. |
