Italy ADSL splitter,filter with low pass SL-468S-F

General low pass filter with optimum performance Electrical Specifications (Operating Temperature5-40¢J Relative Humidity20-90%RH) reference impedance load : 600£[ DC Resistance : < 50£[ Impedance : @ 25 Hz and 50 Hz ¡Ù 40 Insulation resistance: DC/250V (A-wire and B-wire ) >25 M£[ to earth >100 M£[ Insertion Loss : @ 1K HZ < 1 d B Frequency Response/Insertion Loss Distortion : @ 1KHZ 200HZ (The absolute difference between the insertion loss at any frequency in the range 200 Hz to 4 000 Hz and the insertion loss at 1 kHz shall be less than 1 dB.) Isolation (High Freq. Insertion Loss ): @ 32 kHz to 150kHz > 30d B @ 150 kHz to 1.104MHz >55 d B Return loss (Line to Phone and Phone to Line): @300HZ to 500HZ >14 d B @500HZ to 2KHZ >18 d B @2KHZ to 3.4KHZ > 14 dB @3.4KHZ to 4KHZ > 8 d B Delay Distortion : @200 HZ to 4KHZ <200 u S