| 序号 | 型号 | 描述 | 大小 | 厂家Logo | 下载 |
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| 1 | PEF2256 | E1/T1/J1 Framer and Line Interface Component for Long- and Short-Haul Applications | 6574K |
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| 2 | PEF2256 | E1/T1/J1 Framer and Line Interface Component for Long- and Short-Haul Applications | 6574K |
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| 3 | PEF2256E | E1/T1/J1 Framer and Line Interface Component for Long- and Short-Haul Applications | 6574K |
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| 4 | PEF2256H | E1/T1/J1 Framer and Line Interface Component for Long- and Short-Haul Applications | 6574K |
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