Page 1
Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 1 OF 16
File No RDPS-POTS344
Revision R0
System Application Asymmetric Digital Subscriber Line
Product Type ISDN/ANALOG Splitter
Product Name CPF906G
Date Apr. 03th, 2002
Bert Lin - Design Engineer, R&D_1Issued By
Roger Wu – Manager, R&D_1Approved By
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.
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Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 2 OF 16
Table of contents
Item Description Page
1 Introduction ----------------------------------------------- 3
2 Reference ----------------------------------------------- 3
3 Abbreviations ----------------------------------------------- 3
4 Technical requirements ----------------------------------------------- 4
4.1 : Block diagram ----------------------------------------------- 4
4.2 : Electrical specification ----------------------------------------------- 5
4.2.1: ISDN requirement ----------------------------------------------- 5
4.2.2: POTS requirement ----------------------------------------------- 6
4.2.3 : DC characteristic ----------------------------------------------- 7
4.3 : Test methodology for ISDN function ----------------------------------------------- 7
4.3.1: Filter Insertion loss test
----------------------------------------------- 7
4.3.2: Filter return loss test
----------------------------------------------- 8
4.3.3: Filter attenuation test ----------------------------------------------- 9
4.4 : Test method for POTS function ----------------------------------------------- 10
4.4.1 :Filter Insertion loss test ----------------------------------------------- 10
4.4.2 :Filter return loss test ----------------------------------------------- 11
4.4.3 : Filter attenuation test ----------------------------------------------- 12
5 Environmental condition ----------------------------------------------- 13
5.1 : Resistibility to overvoltage and
overcurrents
----------------------------------------------- 13
5.2 : Climatic condition ----------------------------------------------- 13
5.2.1 : Operating temperature ----------------------------------------------- 13
5.2.2 : Storage and transport ----------------------------------------------- 13
5.2.3 : Operating humidity ----------------------------------------------- 13
6 Environmental conditions ----------------------------------------------- 14
7 Mechanical condition ----------------------------------------------- 15
7.1: PCB dimension ----------------------------------------------- 15
7.2 : NFN connector ----------------------------------------------- 15
7.3 : Accessible connector marking ----------------------------------------------- 16
7.4 : Connector and pin assignment ----------------------------------------------- 16
Page 3
Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 3 OF 16
1. Introduction:
The CPF906G is a splitter module that has been specifically designed to implement the
functionality of low pass filter in ISDN/POTS over ADSL application. The CPF906G integrate
low pass filter that block the high frequency energy from reaching the ISDN/POTS device and
provide isolation from impedance effects of the ISDN/POTS device on ADSL. Because the
ISDN/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 splitter to protect against line overstress which could
damage the splitter itself. This splitter mainly consist of one low pass filter which provide
ISDN and POTS solution respectively
2. Reference:
Ref. 1 : ETSI TR 101 728 V1.1.1
Ref. 2 : ETSI TS 101 388 Asymmetric Digital Subscriber Line European specific
requirements
Ref. 3 : ANSI T1.413 Network and customer installation interface.
Ref. 4 : ITU G.992.1 Annex B
Ref. 5 : ITU-T K.21 Resistibility of telecommunication switching equipment to
Overvoltages and overcurrents .
3. Abbreviations:
ADSL Asymmetric Digital Subscriber Line
ISDN Integrated Service Digital Network
CO Central Office
CPE Customer Premise Equipment.
POTS Plain Old Telephone Service
RT Remote Terminal
Z
ADSL
Network termination of ADSL
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Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 4 OF 16
4. Technical requirements:
4.1. Schematic:
The following drawing illustrates the schematic of this product.
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Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 5 OF 16
4.2. Electrical Specification :
4.2.1. ISDN requirement :
All of electrical specifications for ISDN path stated herein must be met and satisfied
separately for single individual splitter and also for the complete splitter combination.
Electrical requirements
Splitter parameter
Range values
ISDN band(3dB bandwidth) DC to 94KHz
ADSL band 160KHz-1104KHz
Nominal impedance
Line impedance ZL 150 ohm
CO impedance ZTc 150 ohm
RT impedance ZTr 150 ohm
Modem impedance 100 ohm
Current voice band
Loop current 200mA
DC resistance
DC resistance <=12.5 ohm
Isolation resistance tip/ring >5 M ohm
ISDN band characteristic
Delay distortion 300Hz<f<80KHz <=20 usec
Longitudinal balance 300Hz<f<30KHz >40 dB
30KHz<f<1104KHz >50 dB
1104KHz<f<5MHz >30 dB
Splitter parameter Rang Modem Value
1KHz<f<60KHz Z
ADSL
<1.2dB
1KHz<f<60KHz NA <1.5dB
60KHz<f<80KHz Z
ADSL
<2.0 dB
Insertion Loss
60KHz<f<80KHz NA <2.5 dB
1KHz<f<60KHz Z
ADSL
≥16 dB
1KHz<f<60KHz NA ≥12 dB
60KHz<f<80KHz Z
ADSL
≥14 dB
Return Loss
60KHz<f<80KHz NA ≥10 dB
138KHz<f<150KHz >55 dB
150KHz<f<1104KHz >65 dB
Stop Band Attenuation
1104KHz<f<2208KHz
Z
ADSL
>55 dB
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Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 6 OF 16
4.2.2. POTS requirement :
Electrical requirements
Splitter parameter
Range values
Frequency range
Splitter bandwidth DC to 16KHz
Nominal voice band 0.3KHz to 3.4KHz
Billing tone 16KHz±80Hz
Ringing frequency 22Hz to 28Hz
ADSL band 160KHz to 1104KHz
Line Impedance ZL 220ohm + (820ohm || 115nF)
CO impedance ZTc 220ohm + (820ohm || 115nF)
RT impedance ZTr 220ohm + (820ohm || 115nF)
Modem impedance 160KHz< f< 1104KHz 100 ohm
Operation voltage voice band
Nominal signal 21mVpp to 5.4 Vpp
Billing tone 10Vpp to 30.2Vpp
Ringing signal
40Vrms to 80Vrms(113Vpp to 227
Vpp)
DC voltage 0V to –72V
Max. AC voltage 70Vrms with –72VDC offset voltage
Max. differential 190V
Current voice band
Loop current <100mA
Transient current(on/off hook) <400mA
DC Resistance
DC Resistance <=12.5 ohm
Isolation resistance tip/ring >5 Mohm
Voice –band characteristic
Splitter parameter Rang Modem Value
Z
ADSL
300HZ<f<3.4KHz
(Refer to 1KHz)
NA
<1.0dB
Z
ADSL
Insertion Loss
16KHz±1KHz
NA
<3.0dB
Return Loss 300KHz<f<3.4KHz Z
ADSL
See note
Stop band attenuation 138KHz<f<2208KHz Z
ADSL
>55dB
NOTE:
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Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 7 OF 16
4.2.3. DC characteristic :
All requirement of this specification can be met in the presence of all ISDN/POTS loop
currents from 0mA to 100mA. This ISDN/POTS splitter can pass ISDN/POTS tip-toring dc voltages of 0V to 72V and ringing signals of 40V to 80Vrms at any frequency
from22Hz to 28Hz with a dc component in the range from 0V to 72V. The dc resistance
from tip-to-ring at the line port interface with the phone interface shorted, shall be less
than or equal to 12.5 ohms. The DC resistance from tip-to-ground and from ring-toground at the ISDN/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 10MΩ.
4.3. Test Methodology For ISDN Function:
4.3.1. Filter insertion loss Test :
4.3.1.1. Test Equipment :
a . HP4395A Network / Spectrum / Impedance Analyzer
b . HP87512A Transmission / Reflection test set
c . Balun North Hills : 0415LB( 50Ω : 150Ω )
4.3.1.2. Test Setup: is shown in Fig.1
4.3.1.3. Test Procedure :
a . Set HP4395A in B/R mode for insertion loss test.
b . Connecting the Analyzer to the ISDN and line side of splitter through the North Hills
Balun 0415LB
c . Set frequency of interest given in specification.
d . Calibrating the HP4395A network Analyzer via the thru for attenuation test .
e . Measurement insertion loss.
Fig. 1-a. Z
ADSL
Load
Note : Z
ADSL
load can be terminated with load, or open
Fig.1. Test Setup
20.89nF
100ohm82uH
0415LB
0415LB
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Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 8 OF 16
4.3.2. Filter return loss Test :
4.3.2.1 . Test Equipment :
a. HP4395A Network / Spectrum / Impedance Analyzer
b. HP87512A Transmission / Reflection test set
c. Balun North Hills : 0415LB( 50Ω : 150Ω )
4.3.2.2 . Test Setup: is shown in Fig. 2
4.3.2.3. Test Procedure :
a. Set HP4395A in A/R mode.
b. Connecting the Analyzer to the ISDN/POTS sides of splitter through the North
Hills Balun 0415LB. While Z
ADSL
load can be terminated with load, or open.
c. Set frequency of interest given in specification.
d. Calibrating the HP4395A network Analyzer via the open, load calibration being
performed for return loss.
e. Measurement Return Loss.
Note : Z
ADSL
load can be terminated with load, or open
Network
Analyzer
BALUN
(0415LB)
150
Ω
Splitter
ISDN/POTS
ADSL
Line
Z
ADSL
Fig.2 Test Setup
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Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 9 OF 16
4.3.3. Filter Attenuation Test.
4.3.3.1. Test Equipment :
a . HP4395A Network / Spectrum / Impedance Analyzer
b . HP87512A Transmission / Reflection test set
c . Balun North Hills : 0311LB( 50Ω : 100Ω ) ;0415LB( 50Ω : 150Ω )
4.3.3.2. Test Setup: is shown in Fig. 3
4.3.3.3. Test Procedure :
a . Set HP4395A in B/R mode for attenuation test.
b . Connecting the Analyzer to the ISDN and line side of splitter through the North Hills
Balun 0311LB( 50Ω : 100Ω ) ;0415LB( 50Ω : 150Ω )
c . Set frequency of interest given in specification.
d . Calibrating the HP4395A network Analyzer via the thru for attenuation test .
e . Measurement attenuation.
Z
ADSL
Fig.3 Test Setup
ADSL
ISDN/PHONE
LINE
100OH
0415LB
0311LB
BALUN
BALUN
Page 10
Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 10 OF 16
ISDN/Phone
Z
ADSL
4.4. Test method For POTS Function:
4.4.1. Filter Insertion loss test :
4.4.1.1. Description :
Insertion loss /Attenuation mentioned herein is defined as below :
IL = 20 log 10 Vo/Vi dB
Vi = the voltage value measured is shown in Fig. 4
Vo = the voltage value measured across the Line side shown in Fig. 5
4.4.1.2. Apparatus :
a . Function generator or equivalent
b . Readout oscilloscope or equivalent.
c . Complex load ZL =220 ohm + 820 ohm //115nF
4.4.1.3. Test procedure :
a . Set the measurement Frequency of interest
b . Connecting the source to the Phone side of splitter with the complex load
ZL=220 ohm + 820 ohm //115nF across the Line side.
c . Measure the voltage value and calculate the Insertion loss expressed in
decibel from the equation Insertion loss = 20 log10 Vo / Vi dB
d . Change another frequency of interested the repeat step a~d.
4.4.1.4. Insertion loss test set up measurement :
Fig. 4
Fig. 5
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Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 11 OF 16
4.4.2. Filter return loss test :
4.4.2.1. Description :
Return loss is essentially defined as the ratio of the power incident upon a given
transmission system to the power reflected caused by an impedance mismatch with
respect to reference impedance at the interface between source and device.Return
loss is generally expressed in decibels. General Return Loss equation as below:
Return loss = 20 log ZR + Z M / ZR - Z M dB
ZR = the reference impedance is shown in Fig. 6
Z M = the measured impedance is shown in Fig. 7
4.4.2.2. Test equipment :
a : HP 16047A Transformer Test Fixture
b : HP HP 4192A Analyzer or equivalent
c : Complex load ZL = 220ohm +820ohm //115nF
4.3.2.3. Test setup : is shown in below
4.3.2.4. Test procedure :
a : Set the measurement Frequency of interest
b : Calibrating the HP4192A L.C.Z. impedance Analyzer via the short . open, load
c : Connecting the Analyzer to the Line side of splitter with the complex load
220ohm+820ohm//115nf across the POTS(ISDN) side. While Z
ADSL
load can
be terminated with Z
ADSL
load or open.
d : Measure the impedance value R +jX and calculate the Return loss expressed in
decibel from the equation Return loss = 20 log ZR + Z M / ZR – Z M dB
e : Change another frequency of interest, then repeat step b~e.
Note : Z
ADSL
load can be terminated with Z
ADSL
load or open
Fig. 6
Fig. 7
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Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 12 OF 16
4.4.3. Filter attenuation test :
4.4.3.1. Test equipment :
a. HP4395A Network / Spectrum / Impedance Analyzer
b. HP87512A Transmission / Reflection test set
c. Balun North Hills : 0311LB(50Ω : 100Ω);0511LB(50Ω : 150Ω)
4.4.3.2. Test setup: is shown in Fig. 8
4.4.3.3. Test procedure :
a. Set HP4395A in B/R mode.
b. Connecting the Analyzer to the ISDN/POTS and ADSL side of splitter through the
North Hills 0311LB and 0511LB(50Ω : 150Ω).
c. Set frequency of interest given in specification.
d. Calibrating the HP4395A network Analyzer via the thru.
e. Measurement attenuation.
Fig. 8
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Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 13 OF 16
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 / QC-0-20 )
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
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Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 14 OF 16
6. Reliability conditions:
Sampling
Quantities
Test
Item
Description of Testing Test Condition Acceptance
D.V.T.
Pilot Run
Mass
Product
By Visual Examination or by
using X-Ray，Microscope etc.
to Examine sample.
1
Visual/Mechanical
Examination
Reference:QC-0-12&QC-0-22
No cracking ，
broken，marking
color changing
and lose marking
after washing.
2 4
According to clause 4.5
Electrical Specification，
pp. 16-17.
2 Electrical Characteristic
Reference: QC-0-16
No electrical
failure.
2 4
-20 0C → +85 0C，for 5 cycles.
3 Thermal Shock
Reference: MIL-STD-202
method 107 / QC-0-20
No electrical
failure.
1 2
+50 0C / 95 RH，96 hrs.
4
Temperature Humidity
Exposure
Reference: MIL-STD-202
method 103 / QC-0-11
No electrical
failure.
1 2
Random vibration /
Freq. : 5 ~ 500 Hz /
Sweep time : 1 hr. / axis /
Force : 2.4 grams
5 Vibration Test
Reference: MIL-STD-202
method 204 / QC-0-21
No electrical
failure &
mechanical
faults.
1 box 1 box
Page 15
Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 15 OF 16
7. Mechanical condition:
7.1. PCB dimension :
7.2. NFN connector :
Page 16
Product Specification
CPF906G
Data sheet subject to change without notice RDPS-POTS344(R0)04/03/2002
SHEET 16 OF 16
7.3. Accessible connector marking :
The following drawing is describing the splitter connector panel.
All marks are to be placed on the PCB components side.
7.4. Connector and pin assignment :
RJ11 connector RJ45 connector
Pin Signal Pin Signal
1 b 1 NC
2 NC 2 NC
3 NC 3 NC
4 NC 4 ADSLa
5 NC 5 ADSLb
6 a 6 NC
7 NC
8 NC
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