| 摘要 |
PURPOSE:To load economically a pseudo call quantity on an optional scale by connecting a spare system communication controller and an active system communication controller and using a pseudo call generated from a spare system central controller and the spare system communication controller as a load on the active system central controller and the active system communication controller. CONSTITUTION:The spare system central controller CC1, the space system common bus controller CBM1 and the spare system communication controller CCU1 generates a required scale of pseudo call, which is loaded to an active system communication controller CCU0, an active system common bus controller CBM0 and an active system cenral controller CC0 via a communication controller connecting package. Thus, it is not required to provide a pseudo call generator on a large scale at the outside of an electronic exchange. Further, since the number of connecting terminals for the spare system communication controller CCU1 and the active system communication controller CCU0 is set optionally, the limit to the scale of pseudo call to be loaded is seldom needed. |
