瑞萨电子提供 T1 / J1 / E1 接口产品，包括模拟前端 (AFE)、线路接口装置 (LIU)、帧调节器和 LIU 加帧调节器组合（也称作收发器）。AFE 是线性接口元件单元 (LIU) 的模拟部分，如在仅含现场可编程门阵列 (FPGA) 等数字逻辑器件的其他设备中提供了时钟和数据还原 (CDR)，则可使用 AFE。瑞萨电子的线路接口部件具有 1 到 28 的端口密度。这些产品支持 2.048M 位/秒和 1.544M 位/秒的速率，也称作 E1、T1 和 J1。它们应用于对不同类型网络之间的数字媒体流进行转换的有线和无线系统，例如微波运输系统、无线基站以及媒体网关。

Download: Timing Fabric for Next Generation Communications Equipment Overview (PDF)

接口&连接

产品选型表

    Processing table
    器件号
    Function
    Ports (#)
    Line Rate
    LOS Level
    Short/Long Haul
    Pkg. Type
    82P20516D
    16-Channel E1 Only Short Haul Line Interface Unit (LIU)    		 LIU 16 E1 Programmable Short haul CABGA
    82P2281
    1 Channel T1 / J1 / E1 Transceiver    		 Transceiver 1 E1, J1, T1 Programmable Short/Long haul TQFP
    82P2282
    2 Channel T1 / J1 / E1 Transceiver    		 Transceiver 2 E1, J1, T1 Programmable Short/Long haul TQFP
    82P2284
    4 Channel T1 / J1 / E1 Transceiver    		 Transceiver 4 E1, J1, T1 Programmable Short/Long haul PBGA
    82P2288
    8 Channel T1 / J1 / E1 Transceiver    		 Transceiver 8 E1, J1, T1 Programmable Short/Long haul PBGA
    82P2521
    21(+1) Channel E1 Short Haul LIU    		 LIU 21 E1 Programmable Short haul PBGA
    82P2816A
    16(+1) Channel T1/J1/E1 Short Haul LIU    		 LIU 16 E1 Programmable Short haul PBGA
    82P2821
    21(+1) Channel T1/J1/E1 Short Haul LIU    		 LIU 21 E1 Programmable Short haul PBGA
    82P2916
    16-Channel T1/E1/J1 Short Haul LIU    		 LIU 16 E1, J1, T1 Programmable Short haul CABGA
    82P2917A
    17-Channel T1/E1/J1 Short Haul LIU    		 LIU 17 E1, J1, T1 Programmable Short haul PBGA
    82P5088
    8-Channel T1/E1/J1 Short Haul/Long Haul LIU    		 LIU 8 E1, J1, T1 Programmable Short/Long haul PBGA
    82V2041E
    1 Channel T1/J1/E1 Short Haul LIU    		 LIU 1 E1, J1, T1 Programmable Short haul TQFP
    82V2042E
    2 Channel T1/J1/E1 Short Haul LIU    		 LIU 2 E1, J1, T1 Programmable Short haul TQFP
    82V2051E
    1 Channel E1 Short Haul LIU    		 LIU 1 E1 Fixed Short haul TQFP
    82V2052E
    2 Channel E1 Short Haul LIU    		 LIU 2 E1 Fixed Short haul TQFP
    82V2081
    1 Channel T1 / J1 / E1 Short Haul/Long Haul LIU    		 LIU 1 E1, J1, T1 Programmable Short/Long haul TQFP
    82V2082
    2 Channel T1 / J1 / E1 Short Haul/Long Haul LIU    		 LIU 2 E1, J1, T1 Programmable Short/Long haul CABGA, TQFP
    82V2084
    4 Channel T1 / J1 / E1 Short Haul/Long Haul LIU    		 LIU 4 E1, J1, T1 Programmable Short/Long haul TQFP
    82V2088
    8 Channel T1 / J1 / E1 Short Haul/Long Haul LIU    		 LIU 8 E1, J1, T1 Programmable Short/Long haul PBGA
    82V2108
    3.3V T1/E1/J1 OCTAL FRAMER    		 Transceiver 1 E1, J1, T1 Programmable Short/Long haul PQFP
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