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| SCN2681AC1N24资料 | |
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SCN2681AC1N24 PDF Download |
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File Size : 105 KB
Manufacturer:S Description:The interface should be arranged to allow simple data transmission from the terminating central office, to the CPE (Customer Premises Equipment), only when the CPE is in an on-hook state. The data will be transmitted in the silent period between the first and second power ring before a voice path is established. The transmission level from the terminating C.O. will be -13.5dBm+/-1.0. The worst case attenuation through the loop is expected to be -20dB. The receiver therefore, should have a sen- sitivity of approximately -34.5dBm to handle the worst case installations. The ITU-T V.23 is also using the FSK signaling scheme to transmit data in the general switched telephone network. For mode 2 of the V.23, the modulation rate and characteristic frequencies are listed below: |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：SCN2681AC1N24 厂 家：S 封 装：8821+ 批 号：50 数 量： 说 明： |
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