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CPF127F
File Revision System Application Product Type Product Name Date Issued Approved Issued Date
RDPS-POTS485 Asymmetric Digital Subscriber Line ISDN/ANALOG Splitter CPF127F Mar. 27th, 2003 Alvin Liou Design Engineer, R&D_1 alvin@ycl.com.tw Roger Manager, R&D_1 Roger@ycl.com.tw
Electronics Co., Ltd.
No.95, Feng Road. Feng Shan City, Kaohsiung, Taiwan, R.O.C.
This controlled document property Electronics Co., Ltd. duplication reproduction transmission unauthorized parties without prior written permission Electronics Co., Ltd. prohibited.
Data sheet subject change without notice
RDPS-POTS485(R0)03/28/2003 SHEET
CPF127F Table contents
Item Description Introduction Reference Abbreviations Technical requirements 4.1.Schematic 4.2.Electrical specification 4.2.1.ISDN requirement 4.2.2.POTS requirement 4.2.3.DC characteristic 4.3. Test method 4.3.1.Filter attenuation return loss test ISDN function 4.3.1.1.Test equipment 4.3.1.2.Test setup 4.3.1.3.Test procedure 4.3.2.Filter return loss test POTS function 4.3.2.1.Test equipment 4.3.2.2.Test setup 4.3.2.3.Test procedure Environmental condition 5.1. Resistibility overvoltage overcurrents 5.2. Climatic condition 5.2.1. Operating temperature 5.2.2. Storage transport 5.2.3. Operating humidity Environmental conditions 6.1.Thermal shock 6.2. Temperature humidity exposure 6.3. Vibration test Mechanical condition 7.1.PCB dimension -Page
Data sheet subject change without notice
RDPS-POTS485(R0)03/28/2003 SHEET
CPF127F Introduction:
CPF127F splitter module that been specifically designed implement functionality pass filter ISDN over ADSL application.The CPF127F integrate pass filter that blocks high frequency energy from reaching ISDN device provide isolation from impedance effects ISDN device ADSL. Because ISDN splitter connects directly subscriber loop media must also provide some protection externally induced line hits faults which could damage attached equipment endanger humans interacting with installed equipment. circuit protection will provided mostly standard central office line protection means additional protection measures built into splitter protect against line overstress which could damage splitter itself.This splitter mainly consists pass filter which provides ISDN POTS solution respectively
Reference:
Ref. Ref. Ref. Ref. Ref. ETSI Annex ETSI V1.2.1 (2001-10) ETSI V1.1.1 (2000-12) ETSI 952-1-4 V1.1.1 (2002-11) ITU-T K.21 Resistibility subscribers terminal overvoltages overcurrents.
Abbreviations:
ADSL ISDN Asymmetric Digital Subscriber Line Integrated Service Digital Network
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RDPS-POTS485(R0)03/28/2003 SHEET
CPF127F Technical requirements:
4.1. Schematic: following drawing illustrates schematic this product.
Where blocking capacitor,27
Data sheet subject change without notice
RDPS-POTS485(R0)03/28/2003 SHEET
CPF127F
4.2. Electrical specification: 4.2.1. ISDN requirement Electrical requirements Range values 94KHz 138KHz -2208KHz 80mA <=12.5 <=20 Value <1.2dB <2.0 <1.5dB <2.5 Port
Modem ISDN/POTS Line
Splitter parameter ISDN band(3dB bandwidth) ADSL band Nominal impedance Line impedance impedance impedance Modem impedance
Current voice band
Loop current
resistance
resistance Isolation resistance tip/ring ISDN band characteristic Delay distortion 300Hz<f<80KHz 300Hz<f<30KHz 30KHz<f<1104KHz Longitudinal balance 1104KHz<f<5MHz Splitter parameter Range 1KHz<f<60KHz 60KHz<f<80KHz 1KHz<f<60KHz 60KHz<f<80KHz 1KHz<f<60KHz 60KHz<f<80KHz Return Loss 1KHz<f<60KHz 60KHz<f<80KHz 138KHz<f<2208KHz Stop Band Attenuation 138KHz<f<150KHz 150KHz<f<1104KHz
Insertion Loss
ZADSL ZADSL ZADSL ZADSL ZADSL ZADSL ZADSL ZADSL
ZRHF ZISDN ZISDN ZISDN
ADSL insertion loss
1104KHz<f<2208KHz 120KHz<f<170KHz 170KHz<f<1104KHz
Data sheet subject change without notice
RDPS-POTS485(R0)03/28/2003 SHEET
CPF127F
4.2.2. POTS requirement Splitter parameter Frequency range Splitter bandwidth Nominal voice band Billing tone Ringing frequency ADSL band Impedance Modem impedance Operation voltage voice band Nominal signal Billing tone Ringing signal voltage Max. voltage Max. differential Current voice band Loop current Transient current(on/off hook) Resistance Resistance Isolation resistance tip/ring Voice band characteristic Splitter parameter Range 200HZ<f<4KHz (Refer 1KHz) 1KHz Return Loss Value ±1.0 <1.0dB Electrical requirements Range values 16KHz 0.3KHz 3.4KHz 12KHz 16KHz 22Hz 28Hz 138KHz 2208KHz
138KHz< 2208KHz
21mVpp 10Vpp 30.2Vpp 40Vrms 80Vrms(113Vpp Vpp) 70Vrms with 72VDC offset voltage 190V <80mA <400mA <=50 Mohm Port Modem ZADSL ZADSL
ISDN/POTS
Line
Insertion Loss
300Hz<f<1.6KHz ZADSL 1.6KHz<f<3.4KHz 200Hz>f<600Hz <250 ZADSL 600Hz>f<3.2KHz <200 ZADSL 3.2KHz>f<4KHz <250 ZADSL
Group delay distortion
Data sheet subject change without notice
RDPS-POTS485(R0)03/28/2003 SHEET
CPF127F
4.2.3. characteristic requirement this specification presence POTS loop currents from 80mA. This POTS splitter pass POTS tip-to-ring voltages ringing signals 80Vrms frequency from22Hz 28Hz with component range from 72V. resistance from tip-to-ring line port interface with phone interface shorted, shall less than equal 12.5 ohms. resistance from tip-to-ground from ring-to-ground POTS interface with interface open shall greater than equal Megohms. ground point shall local building green wire ground. objective resistance should exceed 10M. 4.3. Test Methodology 4.3.1. Insertion Return loss Test ISDN Function. 4.3.1.1. Test Equipment HP4395A Network Spectrum Impedance Analyzer HP87512A Transmission Reflection test Balun North Hills 0303LB( 4.3.1.2. Test Setup: shown Fig.1 4.3.1.3. Test Procedure HP4395A mode attenuation test while mode Return loss test. Connecting Analyzer ISDN line side splitter through North Hills Balun 0303LB frequency interest given specification. Calibrating HP4395A network Analyzer thru attenuation test while open, load calibration being performed Return loss. Measurement attenuation Return loss.
20.89nF 82uH 100ohm
Fig. ZADSL-I does include blocking capacitors Fig.1. Test Setup
Data sheet subject change without notice
RDPS-POTS485(R0)03/28/2003 SHEET
CPF127F
4.3.2. Return Loss Test POTS Function 4.3.2.1. Test Equipment 16047A Transformer Test Fixture 4192A Analyzer equivalent
4.3.2.2. Test Setup shown below 4.3.2.3. Test Procedure measurement Frequency interest Calibrating HP4192A L.C.Z. impedance Analyzer short open, load Connecting Analyzer Line side splitter with 600ohm load across POTS(ISDN) side, while load terminated with ZADSL-I. Measure impedance value calculate Return loss expressed decibel from equation Return loss Change another frequency interest, then repeat step b~e.
Data sheet subject change without notice
RDPS-POTS485(R0)03/28/2003 SHEET
CPF127F Environmental condition:
5.1. Resistibility overvoltages overcurrents: splitter comply with requirements ITU-T K.21. 5.2. Climatic conditions: 5.2.1. Operating temperature: Application indoor Long time operation guarantee temperature Short time operation guarantee temperature According 019, class 5.2.2. Storage transport: ambient temperature High ambient temperature According MIL-STD-202 method 5.2.3. Operation humidity: Long time operation guarantee humidity Short time operation guarantee humidity Short time within continuous hours days year
Reliability conditions:
6.1. Thermal shock Temperature from cycles (According MIL-STD-202 method 107) 6.2. Temperature humidity exposure /95RH 96hrs (According MIL-STD-202 method 103) 6.3. Vibration test Random vibration frequency 5-500Hz sweep time axis Force 2.4grams (According MIL-STD-202 method 204)
Data sheet subject change without notice
RDPS-POTS485(R0)03/28/2003 SHEET
CPF127F Mechanical condition:
7.1. dimension
Note Unit
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RDPS-POTS485(R0)03/28/2003 SHEET

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