公开(公告)号：WO1980002631A1

公开(公告)日：1980-11-27

申请号：PCT/SE1980000034

申请日：1980-02-04

Applicant: DIANTEK HB ,  THERN R ,  RUUS J

Inventor： DIANTEK HB

IPC: H04Q09/00

CPC classification number: H04L27/1563 ,  H04B3/44 ,  H04L5/143 ,  H04L27/2092 ,  H04L27/2275 ,  H04Q9/14

Abstract: A data transmission arrangement for bi-directional transmission of bit-sequences between a central unit (CCU) and a plurality of terminal units (TU1, TU2, ...) is provided which is particularly adapted for data acquisition and feedback signaling of messages, and for process control. In the arrangement the data transmission can occur simultaneously with the power supply of the terminal units over a two-lead cable (L), to which a large number of terminal units can be connected in parallel. The method of operation of the arrangement permits an advantageously simple construction of the transmission and reception equipment in the central unit and the terminal units.

Abstract translation: 提供了一种用于在中央单元（CCU）和多个终端单元（TU1，TU2，...）之间进行双向传输比特序列的数据传输装置，其特别适用于消息的数据采集和反馈信令， 并用于过程控制。 在该布置中，数据传输可以通过双引线电缆（L）与终端单元的电源同时发生，并且多个终端单元可以并联连接到该双引线电缆。 该装置的操作方法允许在中央单元和终端单元中有利地简单地构造发射和接收设备。