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| Product Specification MF604F File No Revision System Application Product Type Product Name Date Issued By Approved By Issued Date RDPS-POTS050 R0 Asymmetric Digital Subscriber Line Micro filter for South Africa MF604F Aug. 27th, 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, 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-MF050(R0)08/27/2002 SHEET 1 OF 12 Product Specification MF604F 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. ZADSL definition 4.5. Test method 4.5.1. Insertion loss test setup 4.5.3. Return loss from line side test setup 4.5.4. Return loss from phone side test setup Environmental condition 5.1. Resistibility to overvoltage and overcurrents 5.2. Climatic condition 5.2.1. Operating temperature 5.2.2. Storage and transport 5.2.3. Operating humidity Reliabilty conditions 6.1.Thermal shock 6.2. Temperature humidity exposure 6.3. Vibration test Mechanical condition 7.1. Dimension 7.2. Connector information ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Page 3 3 4 4 4 5 7 7 8 8 9 10 5 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 11 11 11 11 11 11 11 11 11 11 12 12 12 6 7. Data sheet subject to change without notice RDPS-MF050(R0)08/27/2002 SHEET 2 OF 12 Product Specification MF604F 1. Introduction: The MF604F is a "in - line" ( or distributed ) filter 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 allows 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 within intra-campus / intra-building networks. 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 MF604F integrates low pass filter that blocks the high frequency energy from reaching the POTS device and provides isolation from impedance effects of the POTS device on ADSL. In addition , this 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 filter connects directly to the subscriber loop media , it must 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 filter to protect against line overstress which could damage the filter itself. 2. Reference: Ref. 1 : Ref. 2 : Ref. 3 : ETSI TR 101 728 ITU-T G992.1 K21 Attachment to Public Switched Telephone Network Asymmetric Digital Subscriber Line (ADSL) Transceiver Resistibility of subscribers terminal to overvoltages and overcurrents. Data sheet subject to change without notice RDPS-MF050(R0)08/27/2002 SHEET 3 OF 12 Product Specification MF604F 3. Abbreviations: ADSL CO CPE POTS RT Asymmetric Digital Subscriber Line Central Office Customer Premise Equipment. Plain Old Telephone Service Remote Terminal 4. Technical requirements: 4.1. Schematic: The following drawing illustrate the schematic of this product. Data sheet subject to change without notice RDPS-MF050(R0)08/27/2002 SHEET 4 OF 12 Product Specification MF604F 4.2. Electrical specification : Electrical requirements Splitter parameter Frequency range Splitter bandwidth 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 Current voice band Loop current Transient current(on/off hook) Range values DC to 16KHz 0KHz to 4KHz 17Hz , 25Hz 26KHz to 1104KHz 270ohm + (750ohm // 150nF) 270ohm + (750ohm // 150nF) 270ohm + (750ohm // 150nF) 26KHz< f< 1104KHz 100 ohm 21mVpp to 5.4 Vpp 35Vrms to 75Vrms 0V to 78V 25Hz < f <50Hz 100Vrms with78VDC offset <=125mA <=125mA <=25 ohm >25 Mohm >25Mohm <200 usec DC Resistance DC Resistance Isolation resistance between any wire and earth Isolation resistance between wires At 200Vdc Voice-band characteristic Delay distortion 200Hz RDPS-MF050(R0)08/27/2002 SHEET 5 OF 12 Product Specification MF604F Electrical requirements Splitter parameter Insertion loss Attenuation distortion Splitter parameter Voice-band characteristic for single filter Insertion loss Attenuation distortion Return loss at the Line / POTS port Voice-band characteristic for four filters Insertion loss Attenuation distortion Return loss at the Line / POTS port Line side impedance of the filter at ADSL freq. Splitter parameter Longitudinal conversion loss LCL ADSL band characteristic Stop band attenuation NOTE : ZRHF : 120 ohm + [ ( 150 ohm // 47nf ) + ( 750 ohms // 150nf ) ] 32KHz< f <1100KHz >=55 dB 1 kHz 200Hz - 4kHz 300Hz - 3.4kHz 3.4kHz - 4kHz 32kHz - 1100kHz <1.0 dB <1.0 dB >12 dB >8 dB <1 k ZADSL ZADSL ZADSL ZADSL --ZR / 600 ZR / 600 ZR / 600 ZR / 600 ZR / Zsl ZR / Zsl --ZR / Zsl ZR / Zsl ZRHF 1 kHz 200Hz - 4kHz 300Hz - 3.4kHz 3.4kHz - 4kHz <1.0 dB <1.0 dB >12 dB >8 dB ZADSL ZADSL ZADSL ZADSL ZR / 600 ZR / 600 ZR / 600 ZR / 600 ZR / Zsl ZR / Zsl ZR / Zsl ZR / Zsl 1KHz 200Hz 25K, 50K, 100 K, 200K ,1100K >=40 dB values Data sheet subject to change without notice RDPS-MF050(R0)08/27/2002 SHEET 6 OF 12 Product Specification MF604F 4.3. DC characteristic : All requirement of this specification can be met in the presence of all POTS loop currents from 0mA to 125mA. This in line filter can pass POTS tip-to-ring dc voltages of 0V to 78V and ringing signals of 35Vrms to 75Vrms at any frequency from17Hz and25Hz with a dc component in the range from 0V to 78V. The dc resistance from tip-to-ring at the line port interface with the phone interface shorted, shall be less than or equal to 25 ohms. 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 to 5 Megohms. The ground point shall be local building or green wire ground. As an objective , the dc resistance should exceed 25M. 4.4. ZADSL Definition: To facilitate testing of the In-Line Filter independently of the actual modem or specific vendor, ZADSL, is defined to allow proper termination of the ADSL port during voice band testing. The ZADSL is valid only for voice band frequency. The combination of capacitors in the ZADSL is only representative. The input shall be 27nF however derived. ZADSL equivalent circuit is shown below. Data sheet subject to change without notice RDPS-MF050(R0)08/27/2002 SHEET 7 OF 12 Product Specification MF604F 4.5. Test method : 4.5.1. Insertion loss test setup : 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 of a device inserted in a given transmission system is mainly caused by internal component resistive loss while all of the impedance between source , load and device interface having been matched. To perform the insertion loss measurement ,thru calibration must be done prior the testing . 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 : Note : ZR = 270 ohm + ( 750 ohm // 150nf ) Data sheet subject to change without notice RDPS-MF050(R0)08/27/2002 SHEET 8 OF 12 Product Specification MF604F 4.5.2 . Return loss from line side test setup : Return loss measures the amount of lost energy due to reflection resulted from impedance mismatching at the interface. Return loss is essentially defined as the ratio of the incident power upon a given transmission system to the reflective power caused by impedance mismatch with respect to reference impedance at the interface between source and device. Return loss figure is a function of the impedance of the circuit involved and therefore frequency dependent. These impedance must be closely maintained in order to reduce the possibility of undesirable reflection and echoes which results from long distance circuit of the telephone user and may destroy the data being sent. To perform the return loss test , open ,short and 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 is listed: 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: NOTE : ZSL=82 ohm + ( 600 ohm // 68 nf ) Note : ZR = 270 ohm + ( 750 ohm // 150nf ) Data sheet subject to change without notice RDPS-MF050(R0)08/27/2002 SHEET 9 OF 12 Product Specification MF604F 4.5.3 . Return loss from phone side test setup : Return loss measures the amount of lost energy due to reflection resulted from impedance mismatching at the interface. Return loss is essentially defined as the ratio of the incident power upon a given transmission system to the reflective power caused by impedance mismatch with respect to reference impedance at the interface between source and device. Return loss figure is a function of the impedance of the circuit involved and therefore frequency dependent. These impedance must be closely maintained in order to reduce the possibility of undesirable reflection and echoes which results from long distance circuit of the telephone user and may destroy the data being sent. To perform the return loss test , open ,short and 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 is listed: 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: NOTE : ZSL : = 82 ohm + ( 600 ohm // 68nf ) Note : ZR = 270 ohm + ( 750 ohm // 150nf ) Data sheet subject to change without notice RDPS-MF050(R0)08/27/2002 SHEET 10 OF 12 Product Specification MF604F 5. Environmental condition: 5.1. Resistibility to overvoltages and overcurrents: The splitter has to comply with requirements as per ITU-T K.21. 5.2. Climatic conditions: 5.2.1. Operating temperature: Application indoor Long time operation guarantee temperature ( 5 to 40 0C ) Short time operation guarantee temperature ( 0 to 50 0C ) ( According to ETS 300 019, class 3.2 ) 5.2.2. Storage and transport: Low ambient temperature - 20 0C High ambient temperature +85 0C ( According to MIL-STD-202 method 107 ) 5.2.3. Operation humidity: Long time operation guarantee humidity ( 5 to 85 % ) Short time operation guarantee humidity ( 5 to 90 % ) Short time : within 72 continuous hours and 15 days in a year 6. Reliability conditions: 6.1. Thermal shock : Temperature from -20 C to +85 C for 5 cycles (According to MIL-STD-202 , method 107) 6.2. Temperature humidity exposure : +50 C /95RH , 96hrs (According to MIL-STD-202 , method 103) 6.3. Vibration test : Random vibration , frequency 5-500Hz , sweep time :1 hr / axis / Force : 2.4grams (According to MIL-STD-202 , method 204) Data sheet subject to change without notice RDPS-MF050(R0)08/27/2002 SHEET 11 OF 12 Product Specification MF604F 7. Mechanical condition: 7.1. Dimension : Note: Unit : mm 7.2. Connector information: Position Phone Line Type RJ11 Jack RJ11 Plug Tip 3 3 Ring 4 4 Data sheet subject to change without notice RDPS-MF050(R0)08/27/2002 SHEET 12 OF 12 |
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