| 摘要 |
PURPOSE: A common channel signaling network interface device for a data communication system is provided to improve a call connection speed by composing a common channel signaling network interface block in the data communication system and using a No.7 signaling. CONSTITUTION: An E1 interface unit(10) physically connects to a signal switch by an E1 for performing a line switching. A channel switch unit(20) extracts a frame synchronous signal from a framer of the E1 interface unit(10) and performs synchronization. A processor control unit(30) sets connection information of the channel switch unit(20) and an E1 line in each No.7 level 2 chip(40). The No.7 level 2 chip(40) receives signaling data from the channel switch unit(20), and connects to the framer of the E1 interface unit(10) according to connection information of the processor control unit(30). A LAN(Local Area Network) interface(50) performs an interface for performing a communication between a data communication system and an other sub-system.
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