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| Product Specification CPF105C File No Revision System Application Product Type Product Name Date Issued By Approved By Issued Date RDPS-POTS328 R2 Asymmetric Digital Subscriber Line POTS Splitter CPF105C Aug. 12th, 2002 Jason Hung - Design Engineer, R&D_1 jason@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-POTS328(R2)08/12/2002 SHEET 1 OF 10 Product Specification CPF105C 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 : ZHP-r definition 4.5 : Test methodology 4.5.1 : Insertion loss 4.5.2 : 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 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Page 3 3 3 4 4 5 6 6 7 7 7 8 8 8 8 8 9 9 9 9 9 10 5. 6. 7. Data sheet subject to change without notice RDPS-POTS328(R2)08/12/2002 SHEET 2 OF 10 Product Specification CPF105C 1. Introduction: The CPF105C is a splitter module 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 allow 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 on local loops created either intra-building or intracampus. 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 CPF105C integrate low pass filter that block the high frequency energy from reaching the POTS device and provide isolation from impedance effects of the POTS device on ADSL. In addition , these 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 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 : Ref. 4 : ETS 300 001 Attachment to Public Switched Telephone Network ANSI T1.413 Network and Customer Installation Interface ETSI TR 101 728 V1.2.1(2002-05) ETSI TS 101 952-1-1 V1.1.1 3. Abbreviations: ADSL CO CPE POTS RT Asymmetric Digital Subscriber Line Central Office Customer Premise Equipment. Plain Old Telephone Service Remote Terminal RDPS-POTS328(R2)08/12/2002 SHEET 3 OF 10 Data sheet subject to change without notice Product Specification CPF105C 4. Technical requirements: 4.1. Schematic: The following drawing illustrate the block diagram of this product. Data sheet subject to change without notice RDPS-POTS328(R2)08/12/2002 SHEET 4 OF 10 Product Specification CPF105C 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. Electrical requirements Splitter parameter Frequency range Splitter bandwidth Nominal voice band Billing tone Ringing frequency ADSL band Line Impedance ZL CO impedance ZTc RT impedance ZTr Modem impedance Operation voltage voice band Nominal signal Billing tone Ringing signal DC voltage Max. AC voltage Max. differential Current voice band Loop current Transient current(on/off hook) Range values DC to 16KHz 0.3KHz to 3.4KHz 12KHz80Hz 15.3Hz to 68Hz 30KHz to 1104KHz 600ohm 600ohm 600ohm 100 ohm 21mVpp to 5.4 Vpp 10Vpp to 30.2Vpp 40Vrms to 150Vrms(113Vpp to 424 Vpp) 0V to 105V 150Vrms with -105VDC offset 320V <100mA <150mA <=25 ohm >5 Mohm 30KHz< f< 1104KHz 400msec DC Resistance DC Resistance Isolation resistance tip/ring Voice -band characteristic Insertion loss Attenuation distortion Delay distortion Return loss Longitudinal conversion loss LCL ADSL modem interface Isolation voltage ADSL band characteristic Stop band attenuation 1004Hz 200Hz 30KHz Data sheet subject to change without notice RDPS-POTS328(R2)08/12/2002 SHEET 5 OF 10 Product Specification CPF105C 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 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 to5 Megohms . The ground point shall be local building or green wire ground. As an objective , the dc resistance should exceed 10M. 4.4. ZHP-r Definition : ZHP-r is defined to be the impedance presented to the POTS connection by an ATU-R .The equivalent circuit of ZHP-r is showing Figure.1. The ZH is valid only for voice band frequencies. The combination of capacitors in the ZH-r is only representative . 0.10F 100Ohm 0.47mH 0.10F Figure 1. Data sheet subject to change without notice RDPS-POTS328(R2)08/12/2002 SHEET 6 OF 10 Product Specification CPF105C 4.5 . Test method : 4.5.1. 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 of a device inserted in a given transmission system 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 V1 / V2 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. : 600 Low pass filter Phone ZHP-r 600 Line 4.5.2. 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: phone line LCZ meter LPF 600ohms ZM Data sheet subject to change without notice RDPS-POTS328(R2)08/12/2002 SHEET 7 OF 10 Product Specification CPF105C 5. Environmental condition: 5.1. EMC , surge and power- contact: The splitter has to comply with EMC Requirements as per ITU K21, so the following requirements must be taken into consideration: Uko and POTS(a/b)(indoor lines, twisted pair , unshielded , L>10m) No Test 1 Lightning surge simulation 2 Power induction 3 Power contact 5.2. Climatic condition: 5.2.1. Operating temperature: Application Low ambient temperature High ambient temperature (according to ETS 300 019, class 3.2) 5.2.2. Storage and transport: Low ambient temperature -400C High ambient temperature +850C (according to ETS 300 019, transport: class 2.3, storage: class 1.2) indoor -50C +450C Test specification 1500V , 10/700s , 200ms 600V , 1s 230V , 15 minute Number of tests 10 5 1 Data sheet subject to change without notice RDPS-POTS328(R2)08/12/2002 SHEET 8 OF 10 Product Specification CPF105C 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-POTS328(R2)08/12/2002 SHEET 9 OF 10 Product Specification CPF105C 7. Mechanical condition: Data sheet subject to change without notice PHONE LINE DSL RDPS-POTS328(R2)08/12/2002 SHEET 10 OF 10 |
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