Copper Central Office Solutions

SPLITTER FOR MDF

SPLITTER FOR MDF, SPLITTER FOR CW 10 pair Disconnection Module

Description:We have developed ADSL and VDSL splitters and filters for installation both in the CO and in the customer premises. Duratel splitters comply with the relevant ETSI (TS 101952) and ITU-T (G.992, G.993) standards, as well as with the specific customer requirements and with the RoHS and RAEE Directives. All filters are of the type approved by the relevant customer laboratories and/or by the Italian Ministerial Body for Telecommunications (ISCOM).

As a result of the big growth of xDSL connections, central offices of telecom operators are overcrowded with many interconnecting cables. DURATEL xDSL modular splitter blocks are installed in the MDF and combine the xDSL and the POTS signals over the customer line. In this way, the number of cables connecting the DSLAM with the Main Distribution Frame (MDF) is halved and space is saved in the MDF and in the interconnecting cabling structure. The diagrams below show how, including the POTS splitter into the MDF, it is possible to halve the interconnections between the DSLAM and the MDF.

Specification:

 

Parameter

Parameter

Frequency range

Line Impedance

600Ω

0.2kHz-4kHz

CO impedance

600Ω

0.2kHz-4kHz

RT impedance

600Ω

0.2kHz-4kHz

VDSL port termination ZHP-c

100Ω//0.47mH

 

VDSL modem impedance

100Ω

25kHz-30MHz

Nominal Voice Band

 

0.3 kHz-3.4 kHz

Ringing frequency

 

25-50 Hz

VDSL2+Band

 

25kHz-30MHz

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 Vrms

 

Nominal 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 VDSL Band (600Ω)

>55 dB

25kHz-30MHz

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,3rdharmonic 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 VDSL signal path (100Ω)

>0.3dB

25kHz-30MHz