YCL MF609A Datasheet

Product Specification

MF609A

File No RDPS-MF038
Revision R0
System Application Micro Filter For ADSL CPE Side
Product Type POTS Splitter
Product Name MF609A
Date Jan. 23th, 2002

Gino Hung - Design Engineer, R&D_1Issued By

[e-mail]

Roger Wu – Manager, R&D_1Approved By

[e-mail]

Issued Date

YCL Electronics Co., Ltd.

No.95, Feng Jen Road. Feng Shan City, Kaohsiung, 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-MF038(R0)01/23/2002

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Product Specification

MF609A

Table of contents

Item Description Page

1. Introduction ----------------------------------------------- 3

2. Reference ----------------------------------------------- 3

3. Abbreviations ----------------------------------------------- 4
Technical requirements

4.

4.1. Schematic ----------------------------------------------- 4

4.2. ZHP-r definition ----------------------------------------------- 4

4.3. Electrical specification ----------------------------------------------- 5

4.4. DC characteristic ----------------------------------------------- 7

4.5.1. On hook insertion loss ----------------------------------------------- 7

4.5.2 . Off hook insertion loss ----------------------------------------------- 8

4.5.3 . Return loss

4.5.3.1. Phone port return loss ----------------------------------------------- 9

4.5.3.2. Line port return loss ----------------------------------------------- 9

----------------------------------------------- 4

----------------------------------------------- 9

5. Environmental condition ----------------------------------------------- 10

5.1. EMC surge and power contact ----------------------------------------------- 10

5.2. Climatic condition ----------------------------------------------- 10

5.2.1. Operating temperature ----------------------------------------------- 10

5.2.2. Storage and transport ----------------------------------------------- 10

6. Reliability condition ----------------------------------------------- 11

6.1. Operation ----------------------------------------------- 11

6.2. Handling ----------------------------------------------- 11

6.3. Storage and transport ----------------------------------------------- 11

6.4. product safety ----------------------------------------------- 11

7. Mechanical condition

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Data sheet subject to change without notice RDPS-MF038(R0)01/23/2002

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Product Specification

MF609A

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. Recent field trials of DSL Lite
equipment jointly carried out by a group of manufacturers and a North America network
operator has proved the technology, achieving maximum data rate for distance up to 15000
feet, 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 : ETS 300 001 Attachment to Public Switched Telephone Network

Ref. 2 : ANSI T1E1.4 In-Line Network and Customer Installation Interface
Filter standard

Ref. 3 : ITU-T K21 Resistibility of subscribers terminal to overvoltage and
overcurrents

Data sheet subject to change without notice RDPS-MF038(R0)01/23/2002

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Product Specification

MF609A

3. Abbreviations:

ADSL Asymmetric Digital Subscriber Line

CO Central Office
CPE Customer Premise Equipment.
POTS Plain Old Telephone Service
RT Remote Terminal
DSL-NT Network termination of ADSL

4. Technical requirements:

4.1. Schematic:

The following drawing illustrate the schematic of this product.

4.2. ZHP-r definition :

To facilitate testing of the inline filter independently of the actual modem or specific
vendor,ZHP-r is defined to allow proper termination of the XDSL 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 27nF however derived. ZHP-r
equivalent circuit is shown below :

0.056uF

0.47mH

0.056uF

Data sheet subject to change without notice RDPS-MF038(R0)01/23/2002

100 ohm

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