| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | PEF22554 | Quad E1/T1/J1 Framer and Line Interface Component for Long and Short Haul Applications | 936K |
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| 2 | PEF22554E | Quad E1/T1/J1 Framer and Line Interface Component for Long and Short Haul Applications | 936K |
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| 3 | PEF22554HT | Quad E1/T1/J1 Framer and Line Interface Component for Long and Short Haul Applications | 331K |
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