MF604F Ver la hoja de datos (PDF) - Unspecified

Número de pieza

componentes Descripción

Fabricante

MF604F

Micro filter for South Africa

Unspecified 

Product Specification

MF604F

4.3. DC characteristic :

All requirement of this specification can be met in the presence of all POTS loop currents

from 0mA to 125mA. This in line filter can pass POTS tip-to-ring dc voltages of 0V to 78V

and ringing signals of 35Vrms to 75Vrms at any frequency from17Hz and25Hz with a dc

component in the range from 0V to 78V. The dc resistance from tip-to-ring at the line port

interface with the phone interface shorted, shall be less than or equal to 25 ohms. The DC

resistance from tip-to-ground and from ring-to-ground at the POTS interface with the U-R

interface open shall be greater than or equal to 5 Megohms. The ground point shall be local

building or green wire ground. As an objective , the dc resistance should exceed 25MΩ.

4.4. ZADSL Definition:

To facilitate testing of the In-Line Filter independently of the actual modem or specific

vendor, ZADSL, is defined to allow proper termination of the ADSL port during voice band

testing. The ZADSL is valid only for voice band frequency. The combination of capacitors in

the ZADSL is only representative. The input shall be 27nF however derived. ZADSL equivalent

circuit is shown below.

Data sheet subject to change without notice

RDPS-MF050(R0)08/27/2002

SHEET 7 OF 12

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