CPF120A 데이터 시트보기 (PDF) - YCL Electronics
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CPF120A Datasheet PDF : 14 Pages
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Product Specification
CPF120A
1. Introduction :
The CPF120A is a splitter module that has been specifically designed to implement the
functionality of low pass filter in POTS over ADSL application at CPE side.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 a
separated plastic box).
The CPF120A 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 POTS splitter and LOW-pass filter shall be passive
element .Even if the power supply or equipment fails, the telephone service on DSL line shall
operate normally.
Data sheet subject to change without notice
RDPS-POTS342(R3)09/11/2002
SHEET 3 OF 14
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