H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 11/04 (2006.01)
Patent
CA 2069240
A connection node (VK) of a data transmission system for switching channels, which are assigned to one or more time slots within the framework of a multiplex time signal, e.g. virtual containers of a STM-1 frame according to CCITT recommendations G.707 to G.709, has a switching network that consists of switch groups (SCH). The switch groups (SCH) are modular and are linked to each other. Each of the switch groups (SCH) contains a memory (DS) with several independently readable memory outputs (SA1 to SA4), through which the storage area can be accessed. Each of the part signals of each memory address can be connected with a data output of the switch group through selectors SEL1 to SEL4. The reading is controlled by a connecting memory (VB1 to VB4), which is assigned to a memory output (SA1 to SA4) and a selector (SEL1 to SEL4). The coupling field may be composed of switch groups arranged in columns and lines, as required. The data inputs (DE1 to DE4) of the switch groups (SCH) in one line are in parallel with one input of the coupling field. Each of the data outputs of one switch group (SCH MN) is connected to a connection input (VE1 to VE4) of the following switch group.
Alcatel N.v.
Smart & Biggar
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