MF614A 데이터 시트보기 (PDF) - YCL Electronics

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MF614A

High Speed Digital Services

YCL Electronics  

Product Specification

MF614A

1. Introduction:

The In-Line filter has been specifically designed to implement the functionality of low pass

filter in G.Lite system. G.Lite technology is similar to full rate ADSL in using DMT technology

but operates at a lower data rate of up to 1.5 Mbps downstream and 512 kbps upstream,

depending on line conditions and lengths.

ADSL Lite is proposed as a lower speed version of ADSL that will eliminate the need for

telecom to install and maintain a premise based POTS splitter. Recent field trials of ADSL Lite

equipment jointly carried out by a group of manufacturers and a North America network

operator has proved the technology, achieving maximum data rate for distance up to 15000

feet, It was found necessary to include one or more low pass filters in series with the POTS

terminals in order to reliably achieve maximum data rates. The In-Line filter for phones or

telephone equipments sharing a two-line phone jack. The low pass filters provide protection

from ADSL signal which may impact through non-linear or other effects remote devices

( telephone sets, facsimile machine, answering machine, voice band modem, etc. ) on line 1

and line 2. For ADSL signal, it also provides protection from the high frequency transients and

impedance effects that occur during POTS operation ( ringing transients, on / off hook

transients and so on ). This In-Line filter provides one filtered jack for any single or two-line

phone devices.

Because the In-Line filter connects directly to the subscriber loop media, it must also provide

some protection for externally induced line hits or faults which could damage any attached

equipments or endanger humans interacting with the installed equipments. The circuit

protection will be provided mostly by standard central office line protection means and

additional protection measures built into the In-Line filter to protect against line overstress

which could damage the In-Line filter itself. The electrical and transmission specifications are

designed to meet T1E1.4/2001-007R3 and as per customer’s requirement.

Data sheet subject to change without notice

RDPS-MF041(R0)03/21/2002

SHEET 3 OF 14

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