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CPF113F

Asymmetric Digital Subscriber Line

YCL Electronics  

Product Specification

CPF113F

1. Introduction:

The CPF113F is a splitter module that has been specifically designed to implement the

functionality of low pass filter in POTS over ADSL application.

Asymmetric Digital Subscriber Line (ADSL) technology is dedicated , point to point , public

network access technology that allow multiple forms of data , voice , and video to be carried

over twisted-pair copper wire on the local loop between a network service provider’s(NSP’S)

central office and the customer site or on local loops created either intra-building or intra-

campus. Best of all , ADSL delivers this high speed performance over existing copper

telephone line all while allowing traditional voice service to coexist without interruption

through POTS low pass filters. The POTS-splitter on the customer premises side consists

of a lowpass section(installed in aseparated plastic box).

The CPF113F integrate low pass filter that block the high frequency energy from reaching

the POTS device and provide isolation from impedance effects of the POTS device on

ADSL.In addition , these filter will also attenuate any wideband impulse noise generated by

the POTS device due to the interruption of loop current(e.g. pulse dialing or on hook / off

hook transfer) Because the POTS splitter 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 equipment or endanger humans interacting with the installed

equipment. The circuit protection will be provided mostly by standard central office line

protection means and additional protection measures built into POTS splitter to protect

against line overstress which could damage the splitter itself. The electrical and

transmission specification is based on ETSI TR 101 728 and castomer requird .

2. Reference:

Ref. 1 : ETS 300 019

Ref. 2 : ETSI 101 728

Ref. 3 : ITU-T K20

Ref. 4 : ITU-T K21

Environmental conditions and environmental tests for

Telecommunications equipment

Network and Customer Installation

Resistibility of telecommunication switching

Equipment to overvoltages and overcurrents

Resistibility of subscribers terminal to overvoltage and

overcurrents

Data sheet subject to change without notice

RDPS-POTS332(R0)01/17/2002

SHEET 3 OF 12

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