Rate adaptive apparatus between ISDN AO/ID subscriber control board and packet control board in ESS and control method thereof

摘要

before the invention of the electronic exchange in ISDN AO / DI subscriber control board and board packets between the rate matching device and relates to a control method, ISDN AO / DI to the speed matching the data of the subscriber at all times connected to the low speed in order to provide a subscriber to the service, send a packet processing board to receive all of these data in an electronic exchange ISDN AO / it is an object to provide a rate matching device and method for controlling subscriber DI between the control board and the board packet. ; Before the invention of ISDN subscriber board of the electronic exchange control HDLC controller with a programmable logic gate array MK5025 and, receiving a plurality of a large amount of data received from the ISDN number of the subscriber from the subscriber ISDN board, so to be received at the same time and sent to the higher load to which the packet processing block through a fixed low-speed PCM data path thereof is a high speed transmission rate matching The design is required to be in the form. In addition, since the limitation of the switching capacity of the entire electronic switching preferably be sent or received in a particular channel of the existing bus was used without additional capacity thereof. In the present invention, ISDN AO / DI 9.6Kbps subscriber data of the received channel through the D- terminal are synthesized from a 64Kbps transparently transmitted by the ISDN subscriber control board allows the board to a packet, to send these data to the packet board and characterized in that the path to be used to insert and extract a specific channel of the existing path without using a separate additional transmission path of voice and non-voice PCM bus.