公开(公告)号：EP0245469A4

公开(公告)日：1990-06-26

申请号：EP86907146

申请日：1986-11-04

申请人： APPLIED SPECTRUM TECH

发明人： MOSES DONALD W ,  MOSES ROBERT ,  KINNE JAMES W ,  HUSTIG CHARLES H ,  OLSON WAYNE P ,  DOBERSTEIN ALAN M ,  BRADFORD ROBERT S

IPC分类号： G08C19/00 ,  H02J13/00 ,  H04M11/00 ,  H04Q11/00

CPC分类号： H02J13/0072 ,  H04M11/002 ,  Y02E60/7846 ,  Y04S40/125

摘要： The data telemetry system disclosed is a complete data communications system suitable for use by utilities such as electronic companies, gas companies and water companies which can be used for meter reading and load management at individual subscribers premises (21). Elements of the system can also be used as a power load carrier in a premise specific local area network (LAN). With the system as disclosed, all 10,000 subscribers (21) per exchange can be serviced. It will be understood that data can be multiplexed between a central office location (25, 34, 44) and remote subscribers (21) for any suitable purpose with the data system as disclosed. A packet switching structure is disclosed having eight to thirty-two bytes in the data message. This packet is routed between the utility (28) and remote subscriber (21) with routing headers being added and deleted as required by the network modules (38, 40). Each successive layer of the multiplexing and switching hierachy submultiplies the aggregate 10,000 channel capacity into fewer channels. Both time and space division switching and multiplexing are used.