産品類別 : 光纜和電纜電線·通訊電纜
應用範圍 Application 本産品參照西門子V 42251-Z1001-A1 技術規範而設計制造，主要用於數字傳輸設備及采用類似技術的電子設備之間的信號聯接和控制。 The series is designed and made according to the technologic requirement of V42251-Z1001-A1 of SIEMENS.It is applied for connecting and controlling signal between the transmission equipments. 結構及性能指標 Structures & performances | 2C-2F | 2C-3F | 內導體 Inner conductor | 材料 Material | 鍍銀銅線 Silver plating copper wire | 根數 Number×单線直徑dia. | 1×0.45 | 1×0.60 | 絕緣 Insulation | 材料 Material | 發泡聚乙烯 Foamed PE | 直徑 Dia. mm | 1.90 | 2.70 | 外導體 Outer | 結構 Structural | 複合鋁箔縱包+鍍錫銅線編織 | 直徑 Dia. mm | 2.60 | 3.30 | 護套外徑 Dia. mm | 3.4 | 4.5 | 絕緣電阻 Insulating resistance MΩ. Km | ≥10000 | ≥10000 | 額定特性阻抗 Nominal impedance Ω | 75 | 75 | 電容 Capacitance pF/m | 59 | 59 | 傳輸速率 Relative velocity | 85% | 85% | 衰減常數（20℃） Attenuation（20℃） ≤dB/100m | 1MHz | ≤1.8 | ≤1.4 | 3 MHz | ≤3.0 | ≤2.4 | 10 MHz | ≤5.3 | ≤4.3 | 30 MHz | ≤9.5 | ≤7.4 | 100 MHz | ≤18.5 | ≤13.6 | 200 MHz | ≤27.5 | ≤19.2 | 回波損耗 Echo loss (30～1000MHz) dB | ≥22(獨立峰值≥18) | 屏蔽衰減 Screen attenuation dB | ≥75 | ≥75 | 工作電壓 Working voltage V | ≤300 | ≤300 | 測試電壓 Testing voltage V, 1min | 800 | 800 |
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注：可按雙方協議的長度及包裝形式交貨。 Note:According to mutual agreement,any delivery length and package form is allowable. | 
