| 摘要 |
PURPOSE:To facilitate extension, by connecting an intermediate memory, which takes the signal into the signal processing device, to the output terminal of the receiving-side communication memory in the time division electronic exchange where the connection part between the signal processing device and the push-button dial signal receiving device and so on is simplified. CONSTITUTION:The connection part between push-button dial signal receiving circuit PBR and signal processing device SPR is divided into dial information passing through highway switch HSW and intermediate memory BFM and the SP signal connected directly. Since this directly connected information SP is one bit per a circuit and is the same case as subscriber's circuit LC, push-button dial receiver PBR can be handled similarly to the subscriber's circuit, so that extension and so on can be facilitated. |
