Datasheet MF602F Datasheet (YCL)

Product Specification

MF602F

File No RDPS-MF033
Revision R1
System Application Mirco Filter For ADSL CPE Side
Product Type Micro filter
Product Name MF602F
Date Mar . 04th, 2002

Kevin Lee - 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-MF017(R1)03/04/2002

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Product Specification

MF602F

Table of contents

Item Description Page

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

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

3. Abbreviations ----------------------------------------------- 4

4. Technical requirements ----------------------------------------------- 4

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

4.2. Electrical specification ----------------------------------------------- 5

4.3. DC characteristic ----------------------------------------------- 6

4.4. Test methodology ----------------------------------------------- 6

4.4.1. Insertion loss ----------------------------------------------- 6

4.4.2. Return loss ----------------------------------------------- 8

5. Environmental condition ----------------------------------------------- 9

5.1. EMC , surge and power- contact ----------------------------------------------- 9

5.2. Climatic condition ----------------------------------------------- 9

5.2.1. Operating temperature ----------------------------------------------- 9

5.2.2. Storage and transport ----------------------------------------------- 9

6. Reliability condition ----------------------------------------------- 10

6.1. Operation ----------------------------------------------- 10

6.2. Handling ----------------------------------------------- 10

6.3. Storage and transport ----------------------------------------------- 10

6.4. Product safety ----------------------------------------------- 10

7. Mechanical condition ----------------------------------------------- 11

7.1. Mechanical ----------------------------------------------- 11

7.2. Connector in formation ----------------------------------------------- 11

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Product Specification

MF602F

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 : ETS 300 001 Attachment to Public Switched Telephone Network
Ref. 2 : ANSI T1E1.4 G.992.2 Network and Customer Installation Interface

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

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Product Specification

MF602F

3. Abbreviations:

ADSL Asymmetric Digital Subscriber Line
CO Central Office
CPE
POTS Plain Old Telephone Service

Customer Premise Equipment.

RT
ADSL-NT Network termination of ADSL

Remote Terminal

4. Technical requirements:

4.1. Schematic:

The following drawing illustrates the block diagram of this product.

RJ11 RJ11

LINE

Plug

Filter

Jack

PHONE

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Product Specification

MF602F

4.2.Electrical specification:

The low pass filter shall satisfy the following parametric limits with a complex impedance ZL
shown in this table across the Line side of this device .

The following requirement is specified for a single splitter and with three added parallel
filters.

Splitter parameter

Range values

Frequency range

Splitter bandwith DC to 4KHz
Nominal voice band 0.3KHz to 3.4KHz
Ringing frequency 15.3Hz to 68Hz
ADSL band 30KHz to 1104KHz
Line Impedance ZL 270ohm + (750ohm || 150nF)
CO impedance ZTc 270ohm + (750ohm || 150nF)
RT impedance ZTr 270ohm + (750ohm || 150nF)
Modem impedance 30KHz< f< 1104KHz 100 ohm

Operation voltage voice band

Nominal signal 21mVpp to 5.4 Vpp
Ringing signal
DC voltage 0V to -60V ANSI 6.98

Electrical requirements

40Vrms to 150Vrms(113Vpp
to 424 Vpp)

Max. AC voltage 150Vrms with -105VDC offset
Max. differential 320V

Current voice band

Loop current <100mA
Transient current(on/off hook) <150mA

DC Resistance

DC Resistance <=25 ohm
Isolation resistance tip/ring >5 Mohm

Voice –band characteristic

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Product Specification

MF602F

Splitter parameter

Range values
Insertion loss single filter 1004Hz <1.0dB
Attenuation relative to 1004Hz 300Hz<f<4KHz <±1.0 dB
Insertion loss with five filters 1004Hz <2.0dB
Attenuation relative to 1004Hz 300Hz<f<4KHz <4.6 dB
Delay distortion 200Hz<f<4KHz <100 usec
Return loss single filter 200 Hz <f<500Hz >=14.0dB

500Hz<f<2KHz >=18.0dB
2KHz<f<3.4KHz >=14.0dB

Return loss with five filters 200Hz<f<500Hz >=14.0dB

500Hz<f<2KHz >=8.0dB
2KHz<f<3.4KHz >=6.0dB

Isolation voltage >2000Vrms for 1 minute

ADSL band characteristic

Stop band attenuation 25KHz<f<50KHz >15 dB

Electrical requirements

50KHz<f<1MHz >25 dB

Longitudinal conversion loss LCL 200Hz<f<1KHz >58 dB

1KHz<f<3.4KHz >53 dB

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Product Specification

MF602F

4.3 : DC characteristic :

All requirement of this specification can be met in the presence of all POTS loop currents
from 0mA to 100mA. This in line filter can pass POTS tip-to-ring dc voltages of 0V to 105V
and ringing signals of 40V to 150Vrms at any frequency from15.3Hz to 68Hz with a DC
component in the range from 0V to 105V. The dc resistance from tip-to-ring at the line port
interface with the phone interface shorted, shall be less than or equal to 15 ohms for one
splitter.The DC resistance from tip-to-ground and from ring-to-ground at the POTS interface
with the U-R interface open shall be greater than or equal to5 Megohms. The ground point
shall be local building or green wire ground. As an objective , the DC resistance should
exceed 10MΩ.

4.4 : Test method :

4.4.1 : Insertion loss :

The insertion loss of a device connected into a given transmission system is defined as
the ratio, expressed in dB, of the load power available(before and after insertion )
delivered to the output network beyond the point of insertion at a given frequency.In
general , the insertion loss is defined as the ratio, expressed in dB of the power delivered
to a load with the circuit in place and the power delivered to a load without the circuit in
place.The added insertion loss shall be measured using the test up in figure 3. For
measuring POTS band insertion loss for single filter module also a single filter wit four
added parallel load filters.General Insertion loss equation can be expressed as following
Insertion loss = 20 log V2 / V1 dB where
V1 = the measured voltage value of load without LPF in circuit.
V2 = the measured voltage value of load with LPF in circuit.
The test setup is shown in drawing below.

:

Remote POTS Splitter

ZL

Data sheet subject to change without notice RDPS-MF017(R1)03/04/2002

Line

LPF

Load#1 LPF

Load#4 LPF

Phone

ZL is normal Termination
in test set

Test

Equipment

ZL

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4.4.2 : Return loss :

Return loss measure the amount of energy that is lost due to reflection which resulted
from impedance mismatching at the interface. Return loss is essentially defined as the
ratio of the power incident upon a given transmission system to the power reflected
caused by impedance mismatch with respect to reference impedance at the interface
between source and device.Return loss figure are a function of the impedance of the
circuit involved and are therefore frequency dependent.
These impedance must be closely maintained in order to reduce the possibility of
undesirable reflection and echoes which in long distance circuit the telephone user or
destroy the data being sent.To perform the return loss test ,open ,short, load calibration
must be done prior measurement while the LCZ impedance Analyzer being selected in
impedance mode. Return loss is general expressed in decibels. General Return loss
equation as below:
Return loss = 20 log ZL + ZM / ZL - ZMdB
Where ZL = the reference impedance ZM = the measured impedance

The test setup is shown in drawing below:

Remote POTS Splitter

ZL

Line

LPF

Load#1 LPF

Phone

Return loss reference

Test

Equipment

ZL

Load#4 LPF

Data sheet subject to change without notice RDPS-MF017(R1)03/04/2002

impedance

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5. Environmental condition:

5.1. EMC , surge and power- contact:

The splitter has to comply with EMC Requirements as per ITU-T K21, so the following
requirements must be taken into consideration:

No. Test item Test specification Number of tests

1 Lightning surge simulation
2 Power induction 600V, 1s 5
3 Power contact 230V , 15 minutes 1

5.2. Climatic condition:

1500V , 10/700µs ,200ms

10

5.2.1. Operating temperature:

Application indoor
Low ambient temperature -50C
High ambient temperature +450C
(according to ETS 300 019, class 3.2)

5.2.2. Storage and transport:

Low ambient temperature -200C
High ambient temperature +850C
(according to ETS 300 019, transport: class 2.3, storage: class 1.2)

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6. Reliability condition:

6.1. Operation:

Test Test specification

IEC 68 Part 2-6

10 to 58Hz 0,075mm

Vibration sinusoidal

Shock(half sine)

6.2. Handling:

58 to 500Hz 10m/S2 ,

1octaver/minute

3 axis; every 10 cycles

IEC 68 Part 2-27

≤100kg 100m/ S

2

11ms

6 directions; every 3 shocks

Test Test specification

Freefall

6.3. Storage and transport:

Test Test specification

Vibration(random) IEC 68 Part 2-64

Bump IEC 68 Part 2-29

Freefall

6.4. Product safety:

Test Test specification

Electrical hazard

Mechanical hazard

Fire hazard

IEC 68 Part 2-32 Stand alone:<10kg

75mm Built in:2x ground area

IEC 68 Part 2-32 <10kg 800mm

Twice at any possible

Transport position on concrete floor

EN 60950 (A4), (≡VDE 0805)
EN 60950 (A4), (≡VDE 0805)

EN 60950 (A4), (≡VDE 0805)

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MF602F

7. Mechanical condition:

7.1. Mechanical :

Unless otherwise specified , all tolerance are mm±0.25

7.2. Connector in formation :

Function Style Tip Ring

Line RJ 11 Plug Pin 3 Pin 4

Phone RJ 11 Jack Pin 3 Pin 4

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