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| Product Specification MF602F File No Revision System Application Product Type Product Name Date Issued By Approved By Issued Date RDPS-MF033 R1 Mirco Filter For ADSL CPE Side Micro filter MF602F Mar . 04th, 2002 Kevin Lee - Design Engineer, R&D_1 kevin@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, 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 SHEET 1 OF 11 Product Specification MF602F Table of contents Item Description 1. 2. 3. 4. Introduction Reference Abbreviations Technical requirements 4.1. Schematic 4.2. Electrical specification 4.3. DC characteristic 4.4. Test methodology 4.4.1. Insertion loss 4.4.2. Return loss Environmental condition 5.1. EMC , surge and power- contact 5.2. Climatic condition 5.2.1. Operating temperature 5.2.2. Storage and transport Reliability condition 6.1. Operation 6.2. Handling 6.3. Storage and transport 6.4. Product safety Mechanical condition 7.1. Mechanical 7.2. Connector in formation --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Page 3 3 4 4 4 5 6 6 6 8 9 9 9 9 9 10 10 10 10 10 11 11 11 5. 6. 7. Data sheet subject to change without notice RDPS-MF017(R1)03/04/2002 SHEET 2 OF 11 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 Ref. 2 : ANSI T1E1.4 G.992.2 Ref. 3 : ITU-T K21 Attachment to Public Switched Telephone Network Network and Customer Installation Interface Resistibility of subscribers terminal to overvoltage and overcurrents Data sheet subject to change without notice RDPS-MF017(R1)03/04/2002 SHEET 3 OF 11 Product Specification MF602F 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. Technical requirements: 4.1. Schematic: The following drawing illustrates the block diagram of this product. RJ11 Plug RJ11 Jack LINE Filter PHONE Data sheet subject to change without notice RDPS-MF017(R1)03/04/2002 SHEET 4 OF 11 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. Electrical requirements Range values DC to 4KHz 0.3KHz to 3.4KHz 15.3Hz to 68Hz 30KHz to 1104KHz 270ohm + (750ohm || 150nF) 270ohm + (750ohm || 150nF) 270ohm + (750ohm || 150nF) 30KHz< f< 1104KHz 100 ohm 21mVpp to 5.4 Vpp 40Vrms to 150Vrms(113Vpp to 424 Vpp) 0V to -60V ANSI 6.98 150Vrms with -105VDC offset 320V <100mA <150mA <=25 ohm >5 Mohm Splitter parameter Frequency range Splitter bandwith Nominal voice band Ringing frequency ADSL band Line Impedance ZL CO impedance ZTc RT impedance ZTr Modem impedance Operation voltage voice band Nominal signal Ringing signal DC voltage Max. AC voltage Max. differential Current voice band Loop current Transient current(on/off hook) DC Resistance DC Resistance Isolation resistance tip/ring Voice -band characteristic Data sheet subject to change without notice RDPS-MF017(R1)03/04/2002 SHEET 5 OF 11 Product Specification MF602F Electrical requirements Range 1004Hz 300Hz Splitter parameter Insertion loss single filter Attenuation relative to 1004Hz Insertion loss with five filters Attenuation relative to 1004Hz Delay distortion Return loss single filter Data sheet subject to change without notice RDPS-MF017(R1)03/04/2002 SHEET 6 OF 11 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 10M. 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 Line ZL LPF Phone Test Equipment Load#1 LPF ZL ZL is normal Termination Load#4 LPF in test set Data sheet subject to change without notice RDPS-MF017(R1)03/04/2002 SHEET 7 OF 11 Product Specification MF602F 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 - ZMdB Where ZL = the reference impedance ZM = the measured impedance The test setup is shown in drawing below: Remote POTS Splitter ZL Line LPF Phone Test Equipment ZL Load#1 LPF Return loss reference Load#4 LPF impedance Data sheet subject to change without notice RDPS-MF017(R1)03/04/2002 SHEET 8 OF 11 Product Specification MF602F 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. 1 2 3 Test item Lightning surge simulation Power induction Power contact Test specification 1500V , 10/700s ,200ms 600V, 1s 230V , 15 minutes Number of tests 10 5 1 5.2. Climatic condition: 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) Data sheet subject to change without notice RDPS-MF017(R1)03/04/2002 SHEET 9 OF 11 Product Specification MF602F 6. Reliability condition: 6.1. Operation: Test Test specification IEC 68 Part 2-6 10 to 58Hz 0,075mm 58 to 500Hz 10m/S2 , 1octaver/minute 3 axis; every 10 cycles IEC 68 Part 2-27 100kg 100m/ S2 11ms 6 directions; every 3 shocks Vibration sinusoidal Shock(half sine) 6.2. Handling: Test Freefall Test specification IEC 68 Part 2-32 Stand alone:<10kg 75mm Built in:2x ground area 6.3. Storage and transport: Test Vibration(random) Bump Freefall Test specification IEC 68 Part 2-64 IEC 68 Part 2-29 IEC 68 Part 2-32 <10kg 800mm Twice at any possible Transport position on concrete floor 6.4. Product safety: Test Electrical hazard Mechanical hazard Fire hazard Test specification EN 60950 (A4), (VDE 0805) EN 60950 (A4), (VDE 0805) EN 60950 (A4), (VDE 0805) Data sheet subject to change without notice RDPS-MF017(R1)03/04/2002 SHEET 10 OF 11 Product Specification MF602F 7. Mechanical condition: 7.1. Mechanical : Unless otherwise specified , all tolerance are mm0.25 7.2. Connector in formation : Function Line Phone Style RJ 11 Plug RJ 11 Jack Tip Pin 3 Pin 3 Ring Pin 4 Pin 4 Data sheet subject to change without notice RDPS-MF017(R1)03/04/2002 SHEET 11 OF 11 |
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