CPF121F データシートの表示（PDF） - YCL Electronics

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CPF121F

Asymmetric Digital Subscriber Line

YCL Electronics  

Product Specification

CPF121F

1. Introduction:

The CPF121F 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 CPF121F 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 .

Data sheet subject to change without notice

RDPS-POTS438(R1)12/25/2002

SHEET 3 OF 14

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