CPF100F View Datasheet(PDF) - YCL Electronics
Part Name
Description
MFG CO.
'CPF100F' PDF : 9 Pages View PDF
CPF100F
0 . Revision History :
Revision 0: initial release
Revision 1 : added Return Loss on Line Side
Revision 2 : changed mechanical to new module.
1. Introduction :
The CPF100F 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 a
separated plastic box).
The CPF100F 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.
2 . Reference :
Ref. 1 : ETS 300 001
Ref. 2 : ANSI T1.413
Ref. 3 : CNET31-21
Ref. 4 : CENT31-24
Attachment to Public Switched Telephone Network
Network and Customer Installation Interface
External Electric Overload testing Of The Subscriber Terminals.
External electric Overload testing Of Switching Units
YCL
Page 2
RDPS-POTS044(R3)
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