| 摘要 |
PCT No. PCT/SE83/00449 Sec. 371 Date Jun. 29, 1984 Sec. 102(e) Date Jun. 29, 1984 PCT Filed Dec. 14, 1983 PCT Pub. No. WO84/02815 PCT Pub. Date Jul. 19, 1984.The invention relates to a method and apparatus in a telecommunication system for activation of means from idling state to active state. The system includes a digital subscriber connection in which there is included a line terminal (LT) assigned to the station side of the system, a network terminal (NT) assigned to the subscriber installation and one or more subscriber terminals (ST). The line terminal is connected to a central clock pulse oscillator (master oscillator) (MCL) on the station side, the network terminal and subscriber terminals containing local clock pulse oscillators (slave oscillators) (CL). In activation from the subscriber side, a subscriber terminal (ST) sends an activation request (AR) in the form of a bit pattern sent in bursts to the network terminal (NT) via a TDM bus line (BL). The network terminal sends the activation request (AR) to the line terminal (LT), in the form of a continuously sent, cyclic bit pattern. The line terminal sends an activation request to a station (EX), which then sends an activation order (AO) back to the line terminal, which sends an activation order (AO) in the form of a continuous bit pattern back again to the network terminal (NT). The network terminal then sends an activation order in the form of bit bursts to the subscriber terminal (ST). The subscriber terminal sends the activation order signal to the subscriber. In activation from the station side the activation order goes directly from the station without a preceding activation request from the subscriber. |
