Datasheet CPF106C Datasheet (YCL)

Product Specification

CPF106C

Data sheet subject to change without notice RDPS-POTS449(R0)12/10/2002

SHEET 1 OF 9

File No RDPS-POTS449
Revision R0
System Application Asymmetric Digital Subscriber Line
Product Type POTS Splitter
Product Name CPF106C
Date Dec. 10th, 2002

Gino Hung - Design Engineer, R&D_1Issued By

[e-mail]

Roger Wu – Manager, R&D_1Approved By

[e-mail]

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.

Product Specification

CPF106C

Data sheet subject to change without notice RDPS-POTS449(R0)12/10/2002

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Table of contents

Item Description Page

1. Introduction ----------------------------------------------- 3

2. Reference ----------------------------------------------- 3

3. Abbreviations ----------------------------------------------- 3

4. Technical requirements ----------------------------------------------- 4

4.1. Schematic ----------------------------------------------- 4

4.2. Z

ADSL-2

definition ----------------------------------------------- 5

4.3. Z

RHF

definition ----------------------------------------------- 5

4.4. Electrical specification ----------------------------------------------- 6

5 Environmental condition ----------------------------------------------- 8

5.1. Resistibility to overvoltage and
overcurrents

----------------------------------------------- 8

5.2. Climatic condition ----------------------------------------------- 8

5.2.1. Operating temperature ----------------------------------------------- 8

5.2.2. Storage and transport ----------------------------------------------- 8

5.2.3. Operating humidity ----------------------------------------------- 8

6 Reliability conditions ----------------------------------------------- 8

6.1.Thermal shock ----------------------------------------------- 8

6.2. Temperature humidity exposure ----------------------------------------------- 8

6.3. Vibration test ----------------------------------------------- 8

7. Mechanical condition ----------------------------------------------- 9

Product Specification

CPF106C

Data sheet subject to change without notice RDPS-POTS449(R0)12/10/2002

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1. Introduction:

The CPF106C 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 CPF106C 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 : ETS 300 001 Attachment to Public Switched Telephone Network
Ref. 2 : ETSI101 952-1-1 V1.1.1 Specification of the low pass part of ADSL/POTS splitters

3. Abbreviations:

ADSL Asymmetric Digital Subscriber Line
CO Central Office
CPE Customer Premise Equipment.
POTS Plain Old Telephone Service
RT Remote Terminal

Product Specification

CPF106C

Data sheet subject to change without notice RDPS-POTS449(R0)12/10/2002

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4. Technical requirements :

4.1. Schematic :

The following drawing illustrate the block diagram of this product.

4.2. Z

ADSL-2

definition:

In many of the tests with voice frequencies, the ADSL port of the low pass filter is
terminated with an impedance called Z

ADSL-2

. This impedance model represents the input

impedance of the ADSL transceiver ( with the HPF ), as seen from the low pass filter. This
substitute circuit shown in figure 1 is a model which shall be applied to a POTS splitter when
verifying requirements of the low pass filter. The model is intended for splitter specification
in the context of the present document. The purpose of this model impedance is for splitter
specification, it is not a requirement on the input impedance of the ADSL transceiver. From
the perspective of practical testing, the impedance model of figure 1 is valid for the case
where the splitter has already contained blocking capacitors or a third order high pass filter.

Figure 1. Schematic diagram of the impedance Z

ADSL-2

for the case where there

is a high pass filter or blocking capacitors present in the splitter unit

Product Specification

CPF106C

Data sheet subject to change without notice RDPS-POTS449(R0)12/10/2002

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4.3. Z

RHF

definition:

For requirements relating to ADSL frequencies described in the present document, the

terminating impedance Z

RHF

is used to terminate TELE and LINE ports of the low pass

filter. This is the European harmonized complex impedance ZR ( ETSI TS 101 952-1-1
V1.1.1 subclause 5.2.2 ) with the modification. This network is shown in figure 2.

Figure 2. Schematic diagram of the impedance Z

RHF

Product Specification

CPF106C

Data sheet subject to change without notice RDPS-POTS449(R0)12/10/2002

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4.4. Electrical specification :

The low pass filters shall satisfy the following parametric limits with the voice terminals

Zreal(1) = 600 ohms shown in this table. The following requirements are specified for single

splitter.

Electrical requirements

Splitter parameters

Range values

General conditions

Splitter bandwidth DC to 17.3 kHz
Nominal voice band

300 Hz to 3.4 kHz

Billing tone

12 / 16 kHz ± 1 %

Ringing frequency 25 Hz to 50 Hz
ADSL band

25 kHz to 1104 kHz

Line Impedance Zreal(1)

200 Hz to 4 kHz

600 ohms

CO impedance ZTc

200 Hz to 4 kHz

600 ohms

RT impedance ZTr

200 Hz to 4 kHz

600 ohms

Modem impedance

25 kHz to 1104 kHz

100 ohms

Operation voltage voice band

Nominal signal 21 mVp-p to 5.4 Vp-p
Billing tone 10 Vp-p to 30.2 Vp-p
Ringing signal 100 Vrms
DC voltage 100 V
Max. AC voltage

100 Vrms with –100 VDC offset

Max. differential 250 V

Operation current voice band

DC Loop current

< 100 mA

DC requirements

DC resistance

The sum of A-wire and B-wire
resistances from the LINE to

the TELE port; term = 0 Ω

< 22 ohms

Isolation resistance, branch-earth

100 VDC; term = ∞ Ω

> 20 Mohms

Isolation resistance, branch-branch

100 VDC; term = ∞ Ω

> 5 Mohms

Voice band requirements

Insertion loss ( Zreal(1) )

@ 1 kHz

< 0.3 dB

Insertion loss distortion
( Zreal(1) )

200 Hz to 4 kHz
( relative to 1 kHz )

<± 1 dB

Product Specification

CPF106C

Data sheet subject to change without notice RDPS-POTS449(R0)12/10/2002

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Electrical requirements

Splitter parameters

Range values

300 Hz to 500 Hz > 14 + 18.05 log ( f / 300 ) dB
500 Hz to 2000 Hz > 18 dB

Return loss at TELE port
( Zreal(1) )

2000 Hz to 3400 Hz > 18 - 17.35 log ( f / 2000 ) dB
300 Hz to 500 Hz > 14 + 18.05 log ( f / 300 ) dB
500 Hz to 2000 Hz > 18 dB

Return loss at LINE port
( Zreal(1) )

2000 Hz to 3400 Hz > 18 - 17.35 log ( f / 2000 ) dB
15 Hz to 50 Hz > 40 dB
50 Hz to 600 Hz > 46 dB

Unbalance about earth
( LCL & TCL ) ( Zreal(1) )

600 Hz to 3.4 kHz > 52 dB
200 Hz to 600 Hz < 250 usec
600 Hz to 3.2 kHz < 200 usec

Group delay distortion
( Zreal(1) )

3.2 kHz to 4 kHz < 250 usec
Frequencies and levels for pulse
metering ( in 200 Ω )

12 / 16 kHz ± 1 %

< 3 dB

ADSL band requirements

Stop band attenuation
( Zreal(1) & Z

RHF

)

30 kHz to 1.104 MHz

> 65 dB

Loading of ADSL signal path
( Z

RHF

)

25 kHz to 1.104 MHz < 0.3 dB

Near-end cross talk NEXT 1 kHz to 1.104 MHz

> 65 dB

Product Specification

CPF106C

Data sheet subject to change without notice RDPS-POTS449(R0)12/10/2002

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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)

Product Specification

CPF106C

Data sheet subject to change without notice RDPS-POTS449(R0)12/10/2002

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7. Mechanical condition:

PHONE

DSL

LINE

Note:

1. Unit : mm

2. All tolerances are ± 0.25 mm