Communication device for transmitting message signals
AssigneeSiemens Aktiengesellschaft
InventorsSiegfried Huber, Joachim Klink, Klaus Ziemann, Jörg Köpp
Life of this patent
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Abstract
The communication device (KE) has a coupling arrangement (ASN) with at least a number N of active line assemblies (BG 1 to BG N), which are respectively connected to a transmission line (LTG 1 to LTG N) and, together with an additional standby line assembly (BG N+1), form a “1:N” redundancy group. In such a “1:N” redundancy group, line-specific switches (S) and selection devices (SEL 1:N) are designed and arranged in such a manner that the selection devices can be replaced without adversely affecting the normal operation of the communication device.
Claims7
A communication device for the transmission of information signals via transmission lines, comprising:
- a central coupling arrangement;
- line assemblies which are associated with said coupling arrangement, wherein each line assembly is connected to one of said the transmission lines;
- a 1:N redundancy group comprising:
- a number N of active said line assemblies,
- an additional standby said line assembly,
- a selection device comprising N signal connections on a first connection side, and only one signal connection on a second connection side, said second connection being connected to said standby line assembly, wherein each of said active line assemblies can be switched to standby via said associated standby line assembly, and via said selection device;
- line-specific switches that are inserted into each of said transmission lines which selectively connect the respective said transmission line via a first switching path to an active said line assembly associated with it, or via a second switching path to one of said N signal connections of said selection device;
- wherein said selection device and said N switches are controlled in a normal mode, and a standby mode;
- wherein in said normal mode, said N transmission lines are connected directly via said first switching paths to said N active line assemblies;
- and
- wherein, when one of said N active line assemblies is in said standby mode, its associated transmission line is connected via said second switching path of said associated switch and said selection device to said standby line assembly.
Dependencies are inferred from the claim text.