ADSL2 над сплиттера для СО

Parameter Parameter Frequency range Line Impedance 600Ω 0.2kHz-4kHz CO impedance 600Ω 0.2kHz-4kHz RT impedance 600Ω 0.2kHz-4kHz ADSL port termination ZHP-c 100Ω//0.47mH ADSL modem impedance 100Ω 25kHz-2208kHz Nominal Voice Band 0.3 kHz-3.4 kHz Ringing frequency 25-50 Hz ADSL2+Band 25-2208 kHz DC series resistance <25Ω DC DC insulation resistance( tip & ring) >5MΩ DC DC insulation resistance ( tip,ring and ground) >20MΩ DC Maximum DC loop current 100mA DC Maximum differential voltage 250V DC Maximum AC voltage 100 VrmsNominal Signal 21 mVpp to 5.4 Vpp Ringing Signal 100 Vrms Impedance for Ring Signal >40kΩ 25-50 Hz Pulse metering tone 10 Vpp to 30.2 Vpp 16 kHz Insertion Loss for Metering Signal <3 dB 16 kHz Insertion Loss in Voice Band <0.3dB 1 kHz Distortion of insertion Loss(relative to 1 kHz) <+/-0.3 dB 0.2 kHz-4 kHz Stop band attenuation in ADSL Band (600Ω) >65 dB 30 kHz-2208 kHz Return Loss in Voice Band >18 dB 0.5 kHz-2 kHz >14+18.05 log(f/300) dB 300 Hz-500 Hz >18-17.35 log(f/2000) dB 2 kHz-3.4 kHz Intermodulation distortion 2nd,3 rdharmonic distortion products:>57 dB,60 4 tone method Delay distortion <150μs 0.2 kHz-4 kHz Longitudinal conversion loss at LINE and POST ports >40dB 15 Hz-50 Hz >46dB 50 Hz-600 Hz >52dB 0.6 kHz-3.4 kHz Loading of the ADSL signal path (100Ω) >0.3dB 25 kHz-2208 kHz