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AD-8039J bảng dữ liệu(PDF) 6 Page - Bothhand USA, LP. |
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AD-8039J bảng dữ liệu(HTML) 6 Page - Bothhand USA, LP. |
6 / 9 page P/N: AD-8039J Figure E-22 Test loop definition E.4.3.1.2 Attenuation Distortion in Voice-Band Variation The variation of insertion loss value form that measured with 1kHz shall be measured using the test set-up in Figure E-20 and Figure E-21. The attenuation of the POTS splitter between 0.2 and 3.4 kHz should be less than ±1.0 dB and between 3.4 and 4.0 kHz should be less than ±1.5dB E.4.3.1.3 Delay Distortion The increase in the delay distortion cause by the POTS splitter shall be as follows. 0.6 – 3.2 kHz: maximum of 200 µs 0.2 – 4.0 kHz: maximum of 250 µs The delay distortion of the POTS splitter shall be measured using Figure E-20 and Figure E-21 E.4.3.1.4 Return Loss Figure E-23 defines the configuration and the values of the test components that shall be used for impedance measurements in the voice band for both the CO and R POTS splitter units. The return loss of each splitter under the specified conditions shall be as follows 11dB(0.2 – 1.5 kHz) 10dB(1.5 – 2.0 kHz) 9dB(2.0 – 3.4 kHz) Test POTS splitter 0.12uF LPF U-x PSTN ZHP-x equipment xDSL Return loss referce impedance (Used only at co termintion) ZNL-x ZNL-x POTS 462 Boston St - Topsfield, MA 01983 - Phone: 978-887-8050 - Fax: 978-887-5434 |
Số phần tương tự - AD-8039J |
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Mô tả tương tự - AD-8039J |
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