VDSL Microfilter

The MFB2B0U-UK1 is a distributed filter which has been designed to implement the functionality of low pass filter for VDSL over POTS application. This micro-filter can be used for deployment of all DSL technologies over existing PSTN wires, including VDSL35b, VDSL2, ADSL2+. The MFB2B0U-UK1 is functionally a low pass filter which separates the transmission of POTS signals and DSL band signals. It features a very low insertion loss of broadband signal up to 35MHz and a high attenuation to prevent POTS signals transients to impact the stability of the data throughput. This product is equipped with UK plug and outlet according to BS6312 and includes a filtered bell wire.

• Designed to meet ETSI TS 101-952-3, SIN346, SIN498 with one or two filters installed
• Low pass filter for VDSL2 / ADSL2+ over POTS
• Compact casing
• Specification valid with DC current up to 80mA
• Consist of only passive elements
• Compliant with European directives, CE marked

Specifications

• Safety, EMC EN60950 ITU-T K21 basic level
• Temperatures Operating: -5°C to +45°C
• Storage: -15°C to +65°C
• Dimensions - 55 x 42 x 23 mm (LxWxH) - cable : 10cm / 13cm with connector

Electrical Performance
Parameter                                Range                            Performance
Line impedance Zr               300Hz — 3.4 kHz                270 + 750 // 150 nF
Insetion loss                              @1 kHz                               <1.0 dB
Insertion distortion                200Hz — 4 kHz                            1 dB
Band attenuation               32 kHz — 200 kHz                  >20 dB...55 dB
                                          200 kHz — 35MHz                         >55 dB
Return loss (POTS & Line)    300Hz — 500Hz                       >14 dB
                                                    500Hz — 2 kHz                      >18 dB
                                                    2 kHz — 3.4 kHz                    >14 dB
Delay distortion                           300Hz — 500Hz                      <250s
                                                   500Hz — 2 kHz                       <200s
                                                   2 kHz — 3.4 kHz                       250s
DC resistance (Tip+Ring)            None                                        <50

Isolation resistance Tip – Ring    @100 Vdc                           >20MΩ

Longitudinal conversion loss      50Hz — 600Hz                    >40 dB
                                                   600Hz — 3.4 kHz                 >46 dB
                                                    3.4 kHz — 4 kHz                 >40 dB