Product Specification
MF600SWI
File No
Revision
System Application
Product Type
Product Name
Date
Issued By
Approved By
Issued Date
RDPS-MF051
R1
Mirco Filter For ADSL CPE Side
Micro filter
MF600SWI
OCT. 01
th
, 2002
Sundi Lin - Design Engineer, R&D_1
sundi@ycl.com.tw
Roger Wu - Manager, R&D_1
roger@ycl.com.tw
YCL Electronics Co., Ltd.
No.95, Feng Jen Road, Feng Shan City, Kaohsiung County, Taiwan, R.O.C.
This controlled document is the property of YCL Electronics Co., Ltd. Any duplication
reproduction or transmission by unauthorized parties without the prior written
permission of YCL Electronics Co., Ltd. is prohibited.
Data sheet subject to change without notice
RDPS-MF051(R1)10/01/2002
SHEET 1 OF 11
Product Specification
MF600SWI
Table of contents
Item Description
1.
2.
3.
4.
5.
Introduction
Compatibility
References
Abbreviations
Technical requirements
5.1. Schematic
5.2. ZHP-r definition
5.3. Electrical specification
5.4. DC characteristics
5.5. Test methods
5.5.1 . Off-hook insertion loss
5.5.2 . Return loss
5.5.2.1. Complex* return loss with ATU-R
5.5.2.2. 600 ohm return loss with ATU-R
Environmental condition
6.1. Resistibility to overvoltage and
overcurrents
6.2. Climatic condition
6.2.1. Operating temperature
6.2.2. Storage and transport
6.2.3. Operating humidity
Reliabilty conditions
7.1.Thermal shock
7.2. Temperature humidity exposure
7.3. Vibration test
Mechanical conditions
8.1. Mechanical
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Data sheet subject to change without notice
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Product Specification
MF600SWI
1. Introduction:
The in-Line Micro 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 1.5Mbps downstream and 512Kbps
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 premises
based POTS splitter. 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.
For POTS voice band service , the low pass filter provide protection from ADSL signal which
may impact through non-line or other effects remote devices(handset, fax, voice band modem
etc)and central office operation . For ADSL signal , it also provide protection from the high
frequency transient and impedance effect that occur during POTS operation(ringing
transients , on-hook,off-hook transient and so on).
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 :
Ref. 2 :
Ref. 3 :
ETS 300 001
ANSI T1E1.4 G.992.2
ITU-T K20
Attachment to Public Switched Telephone Network
Network and Customer Installation Interface
Resistibility of telecommunication switching
Equipment to overvoltages and overcurrents
Ref. 4 :
ITU-T K21
Resistibility of subscribers terminal to overvoltage and
overcurrents
Data sheet subject to change without notice
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Product Specification
MF600SWI
3. Abbreviations:
ADSL
CO
CPE
POTS
RT
ADSL-NT
Asymmetric Digital Subscriber Line
Central Office
Customer Premise Equipment.
Plain Old Telephone Service
Remote Terminal
Network termination of ADSL
4. Abbreviations:
ADSL
CO
CPE
POTS
RT
DSL-NT
Asymmetric Digital Subscriber Line
Central Office
Customer Premise Equipment.
Plain Old Telephone Service
Remote Terminal
Network Termination of ADSL
Data sheet subject to change without notice
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SHEET 4 OF 11
Product Specification
MF600SWI
5. Technical requirements:
5.1. Schematic:
1
The following drawing illustrates the schematic of this product.
5.2. ZHP-r definition:
To facilitate testing of the Single In-Line filter independently of the actual modem or specific
vendor, ZHP-r is defined to allow proper termination of the ADSL port during voice band
testing. The ZHP-r is valid only for voice band frequency. The combination of capacitors in
the ZHP-r is only representative. The input shall be 27 nF however derived. ZHP-r
equivalent circuit is shown below.
0.056 uF
0.47 mH
100 ohms
0.056 uF
Data sheet subject to change without notice
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