Page 1
Product Specification
CPF101NW
Data sheet subject to change without notice RDPS-POTS321(R1)03/15/2002
SHEET 1 OF 13
File No RDPS-POTS321
Revision R1
System Application Asymmetric Digital Subscriber Line
Product Type ISDN / POTS Splitter
Product Name CPF101NW
Date Mar. 15th, 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.
Page 2
Product Specification
CPF101NW
Data sheet subject to change without notice RDPS-POTS321(R1)03/15/2002
SHEET 2 OF 13
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
-----------------------------------------------
7
4.3.1: Filter Return loss test for ISDN
function
-----------------------------------------------
7
4.3.2 : Filter Insertion Loss and attenuation
test for ISDN function
-----------------------------------------------
8
4.3.3: Filter Return loss test for POTS
function
-----------------------------------------------
9
4.3.4 : Filter Insertion Loss test for POTS
function
-----------------------------------------------
10
5 Environmental condition
-----------------------------------------------
11
5.1 : Resistibility to overvoltage and
overcurrents
-----------------------------------------------
11
5.2 : Climatic condition
-----------------------------------------------
11
5.2.1 : Operating temperature
-----------------------------------------------
11
5.2.2 : Storage and transport
-----------------------------------------------
11
5.2.3 : Operating humidity
-----------------------------------------------
11
6 Reliability conditions
-----------------------------------------------
12
7 Mechanical design
----------------------------------------------- 13
Page 3
Product Specification
CPF101NW
Data sheet subject to change without notice RDPS-POTS321(R1)03/15/2002
SHEET 3 OF 13
1. Introduction:
The CPF101NW is a splitter module that has been specifically designed to implement the
functionality of low pass filter in ISDN over ADSL application.The CPF101NW integrate low
pass filter that block the high frequency energy from reaching the ISDN device and provide
isolation from impedance effects of the ISDN device on ADSL. Because the ISDN 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(2000-12)
Ref. 2 : Splitter requirement specification for HM130
Ref. 3 : ITU-T G.992.1 Asymmetrical Digital Subscriber Line (ADSL) Transceiver
Ref. 4 : ITU-T K.21 Resistibility of subscribers terminal to over-voltages and
over-currents.
Ref. 5 : ITU-T K.44 Resistibility tests for telecommunication equipment exposed
to overvoltages and overcurrents－Basic Recommendation
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
Page 4
Product Specification
CPF101NW
Data sheet subject to change without notice RDPS-POTS321(R1)03/15/2002
SHEET 4 OF 13
4. Technical requirements:
4.1. Block diagram :
A block diagram of this product is graphically illustrated as below.
Page 5
Product Specification
CPF101NW
Data sheet subject to change without notice RDPS-POTS321(R1)03/15/2002
SHEET 5 OF 13
4.2. Electrical specification:
4.2.1. ISDN requirement :
Electrical requirements
Splitter parameter
Range values
ISDN band(3dB bandwidth) DC to 94KHz
ADSL band 160KHz-1104KHz
Nominal impedance
Line impedance ZL 135 ohm
CO impedance ZTc 135 ohm
RT impedance ZTr 135 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
Splitter parameter Rang Value
1KHz<f<40KHz <0.8dBInsertion Loss
40KHz<f<80KHz <2.0 dB
1KHz<f<40KHz ≥16 dBReturn Loss
40KHz<f<80KHz ≥14 dB
Stop Band Attenuation 150KHz<f<1104KHz >65 dB
Page 6
Product Specification
CPF101NW
Data sheet subject to change without notice RDPS-POTS321(R1)03/15/2002
SHEET 6 OF 13
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 270ohm + (750ohm || 150nF)
CO impedance ZTc 270ohm + (750ohm || 150nF)
RT impedance ZTr 270ohm + (750ohm || 150nF)
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 Value
200HZ<f<3.4KHz
(Refer to 1KHz)
<±1dB
16KHz±1KHz <3.0dB
Insertion Loss
1KHz <1 dB
300Hz<f<3.4KHz >12 dB
Return Loss
3.4kHz<f<4KHz >8 dB
Page 7
Product Specification
CPF101NW
Data sheet subject to change without notice RDPS-POTS321(R1)03/15/2002
SHEET 7 OF 13
4.2.3. DC characteristic :
All requirement of this specification can be met in the presence of all POTS loop currents
from 0mA to 100mA. This POTS splitter can pass POTS tip-to-ring 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 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
10MΩ.
4.3. Test Methodology :
4.3.1. Filter Return loss test for ISDN function.
4.3.1.1. Test Equipment :
a . HP4395A Network / Spectrum / Impedance Analyzer
b . HP87512A Transmission / Reflection test set
c . Balun North Hills : 0303LB( 50Ω : 135Ω )
4.3.1.2. Test setup: is shown in Fig. 1 .
4.3.1.3. Test Procedure :
a . Set HP4395A in A/R mode.
b . Connecting the Analyzer to the ISDN sides of splitter through the North Hills
Balun 0303LB. 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 thru, open, load calibration.
being performed for Return loss.
e . Measurement Return loss.
Fig. 1-a. ZADSL load
Note : Z
ADS
L
load can be terminated with load, or open
8.2nF
100ohm82uH
Fig. 1. Test Setup
Network
Analyze
BALUN
(0303LB)
135
Ω
Splitter
ISDN/POTS
ADSL
LINE
Z
Page 8
Product Specification
CPF101NW
Data sheet subject to change without notice RDPS-POTS321(R1)03/15/2002
SHEET 8 OF 13
4.3.2. Filter Insertion Loss and attenuation test for ISDN function.
4.3.2.1. Test Equipment :
a . HP4395A Network / Spectrum / Impedance Analyzer
b . HP87512A Transmission / Reflection test set
c . Balun North Hills : 0303LB( 50Ω : 135Ω )
4.3.2.2. Test setup: is shown in Fig. 2 .
4.3.2.3. 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 0303LB
c . Set frequency of interest given in specification.
d . Calibrating the HP4395A network Analyzer via the thru for attenuation test
e . Measurement Insertion Loss and attenuation.
Fig. 2-a. ZADSL load
Note : Z
ADS
L
load can be terminated with load, or open
Fig. 2. Test Setup
8.2nF
100ohm82uH
ISDN/POTS
Page 9
Product Specification
CPF101NW
Data sheet subject to change without notice RDPS-POTS321(R1)03/15/2002
SHEET 9 OF 13
ISDN/Phone
Z
ADSL
4.3.3. Filter Insertion loss test For POTS Function:
4.3.3.1. 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. 3
Vo = the voltage value measured across the Line side shown in Fig. 4
4.3.3.2. Apparatus :
a . Function generator or equivalent
b . Readout oscilloscope or equivalent.
c . Complex load ZL =270 ohm + 750 ohm //150nF
4.3.3.3. Test procedure :
a . Set the measurement Frequency of interest
b . Connecting the source to the Phone side of splitter with the complex load
ZL=270 ohm + 750 ohm //150nF 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.
4.3.3.4. Insertion loss test set up measurement :
Fig. 3
Fig. 4
Page 10
Product Specification
CPF101NW
Data sheet subject to change without notice RDPS-POTS321(R1)03/15/2002
SHEET 10 OF 13
4.3.4. Filter Return Loss Test For POTS Function:
4.3.4.1. 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. 5
Z M = the measured impedance is shown in Fig. 6
4.4.2.2. Test Equipment :
a : HP 16047A Transformer Test Fixture
b : HP HP 4192A Analyzer or equivalent
c : Complex load ZL = 270ohm +750ohm //150nF
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 POTS(ISDN) side of splitter with the complex
load 270ohm+750ohm//150nf across the Line 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.
Fig. 5 Fig. 6
line
ISDN/Phone
Z
ADSL
ADSL
Z
L
Load
ZL Load
Z
Z
M
Page 11
Product Specification
CPF101NW
Data sheet subject to change without notice RDPS-POTS321(R1)03/15/2002
SHEET 11 OF 13
5. Environmental condition:
5.1. Resistibility to overvoltages and overcurrents:
The splitter has to comply with requirements as per ITU-T K.21.
The test voltage of lightning surge simulation is up to 10 kV.
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
Page 12
Product Specification
CPF101NW
Data sheet subject to change without notice RDPS-POTS321(R1)03/15/2002
SHEET 12 OF 13
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 13
Product Specification
CPF101NW
Data sheet subject to change without notice RDPS-POTS321(R1)03/15/2002
SHEET 13 OF 13
7. Mechanical condition:
MODEM
LINE PHONE/ISDN
Loading...