YCL CPF906G Datasheet
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
bert@ycl.com.tw
Roger Wu – Manager, R&D_1Approved By
Roger@ycl.com.tw
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
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
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
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.
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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