TThe SP-401C is a filter module that is specifically designed to implement the functionality of low pass filter in POTS over VDSL2 application. It is backward compatible with ADSL2+/ADSL application.

• Frequency range
• Splitter bandwidth: DC to 4KHz
• Nominal voice band :0.2KHz to 3.4KHz
• Bill tone :12KHz±80Hz
• Ringing frequency: 15.3Hz to 68Hz
• VDSL band: 30KHz to 30MHz
• Line/POTS impedance on 200Hz to 3.4KHz: 600ohms
• Modem impedance on 30KHz to 30MHz: 100ohms
• Operation voltage voice band
• Nominal signal: 21mVpp to 5.4Vpp
• Ringing signal: 40Vrms to 150Vrms
• DC voltage: 0V to 105V
• Max AC voltage: 150Vrms
• Current voice band
• Loop current: < 100 mA
• Transient current (on/off hook) on 400 msrs: < 100mA
• DC resistance Tip to Tip and Ring to Ring: < 25ohms
• Isolation resistance Tip to Ring: >5Mohms
• Voice-band chatacteristic
• Insertion loss on 1KHz :< 0.5dB
• Insertion loss distortion resistive 1KHz on 200 to 3.4KHz: < 1.0dB
• Insertion loss distortion resistive 1KHz on 300Hz to 500Hz >14dB
• 600ohms return loss single filter on 500Hz to 2000Hz: >18dB
• 600ohms return loss single filter on 2000Hz to 3400Hz: >14dB
• 600ohms return loss single filter on 200Hz to 1KHz : >50dB
• Longitudinal conversion loss(LCL) on 1KHz to 4KHz: >46dB
• VDSL band attenuation on 32KHz to 200KHz: >30dB
• VDSL band attenuation on 200KHz to 30MHz: >50dB
• Delay distortion on 300Hz to 4KHz: < 200us
• VDSL Insertion loss on 30KHz to 30MHz: < 0.25dB0Hz