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題 名 | BEX-VCS STM-4中繼模組硬體設計=The Hardware Design of STM-4 Trunk for BEX-VCS |
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作 者 | 戴文川; 張俊榮; 朱煜煌; 羅思程; 曾伯達; 嚴劍琴; | 書刊名 | 電信研究 |
卷 期 | 30:6 2000.12[民89.12] |
頁 次 | 頁645-653 |
分類號 | 448.6 |
關鍵詞 | 虛擬線路交換機; 非同步傳輸模式; 網路對網路介面; 用戶對網路介面; VCS; ATM; NNI; UNI; |
語 文 | 中文(Chinese) |
中文摘要 | 在BEX-VCS[1][2]交換機系統中,寬頻用戶模組(broadband Line Module; BLM)用來提 供用戶-網路介面或網路-網路介面。其中VCS BLM STM-4模組具有兩種主南用途:(1)提供 VCS 622.08 Mbps NNI (Network Network Interface)介面,與其它VCS連接,以構成中繼幹線(2) 提供多工╱解多工功能,使得其它低速之UNI (User Network Interface)介面用戶模組(例如: DS1、E1、DS3及STM-1)能夠與VCS連接。當使用於NNI中繼幹線時,它主要是由OC12T[3]、 ATML622[4]及FCT2[5]三個電路板組成。當使用於UNI介面時,它提供了多工╱解多工功能, 最多可同時連接4路STM-1中繼模組或4路MX200[6]中繼模組,此時它主要是由MX800[7] 及FCT2兩個電路板組成。本篇文章鋹要介紹其系統架構,並且對各個電路板功能做詳細說明。 |
英文摘要 | The Broadband Line Module (BLM) has been developed in BEX-VCS for User-Network interface (UNI) or Network-Network interface (NNI). The VCS BLM STM4 Module has been developed for the following purposes: (1) to provide 622.08Mbps NNI trunk interface for VCS to be able to connect with another VCS, (2) to provide the multiplexing and demultiplexing functions so that the other lowspeed UNI interface (such as DS1, E1, DS3 and STM-1) can be attached to VCS. When NNI trunk is terminated in STM-4 module, it is composed of OC12T, ATML622 and FCT2 circuit board. The STM-4 Module is composed of MX800 and FCT2 circuit board to provide 4 STM-1 (or MX200) to VCS multiplexing (4 to 1) and demultiplexing (1 to 4) when it is connected to a low-speed UNI interface. |
本系統中英文摘要資訊取自各篇刊載內容。