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題名 | BEX-VCS STM-1用戶/中繼模組硬體設計=The Hardware Design of STM-1 Broadband Line/Trunk Module for BEX-VCS |
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作者姓名(中文) | 楊青芬; 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655-661 |
分類號 | 448.6 |
關鍵詞 | 非同步傳輸模式; 虛擬通道; Asynchronous transfer mode; ATM; Virtual channel; VC; |
語文 | 中文(Chinese) |
中文摘要 | BEX-VCS是本所研發的虛擬通道交換機系統,在這套系統中STM-1寬頻用戶╱中繼 模組負責提供STM-1速率的UNI/NNI介面。STM-1BLM主要功能是SDH介面終端,SDH/ATM 資料格式轉換,訊務管理,封胞頭轉換,計費及signalling的處理。一套STM-1 BLM可教8組 duplex的STM-1L終端(STMIT)卡,8路155.52Mbps ATM層(ATML155)卡,1組duplex寬頻用 戶╱中繼處理器卡及系統時鐘卡。本文主要是介紹STM-1 BLM的功能及電路設計。 |
英文摘要 | The STM-1 Broadband Line/Trunk Module (BLM/BTM) provides User-Network Interface/Network-Network Interface (UNI/NNI) for BEX-VCS, which is and ATM Virtual Channel (VC) switch developed by CHTTL. The major functions of this module are SDH termination, SDH/ATM mapping, traffic management, cell header translation, billing, and signaling. An STM-1 BLM can accommodate eight duplex STM-1 termination (STMIT) cards, eight 155.52 Mbps ATM layer (ATML155) cards, one duplex Broadband Line/Trunk Processors (BLP/BTP) cards and a System Clock Line/Trunk (SCLT) card. This paper depicts the features and detailed design of STM-1 BLM. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。