YCL CPF112G Datasheet

Product Specification

CPF112G

Data sheet subject to change without notice RDPS-POTS433(R1)12/30/2002

SHEET 1 OF 10

File No. RDPS-POTS433
Revision R1
System Application Asymmetric Digital Subscriber Line
Product Type POTS splitter
Product Name CPF112G
Date Dec. 30rd, 2002

Jay Hsieh - Design Engineer, R&D_1

Issued By

[e-mail]

Roger Wu – Manager, R&D_1

Approved By

[e-mail]

Issued Date

YCL Electronics Co., Ltd.

No.95, Feng Jen Road, Feng Shan City, Kaohsiung County, 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

CPF112G

Data sheet subject to change without notice RDPS-POTS433(R1)12/30/2002

SHEET 2 OF 10

Table of contents

Item Description Page

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

2 References ----------------------------------------------- 3

3 Abbreviations ----------------------------------------------- 4

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

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

4.2. ZHP-r definition ----------------------------------------------- 4

4.3. Electrical specification ----------------------------------------------- 5

4.4. DC characteristics ----------------------------------------------- 7

4.5. Test methods ----------------------------------------------- 7

4.5.1. Insertion loss ----------------------------------------------- 7

4.5.2. Return loss ----------------------------------------------- 8

5 Environmental conditions ----------------------------------------------- 9

5.1. Resistibility to overvoltages and
overcurrents

----------------------------------------------- 9

5.2. Climatic conditions ----------------------------------------------- 9

5.2.1. Operating temperature ----------------------------------------------- 9

5.2.2. Storage and transport ----------------------------------------------- 9

5.2.3. Operation humidity ----------------------------------------------- 9

6 Reliability conditions ----------------------------------------------- 9

6.1.Thermal shock

----------------------------------------------- 9

6.2. Temperature humidity exposure

----------------------------------------------- 9

6.3. Vibration test

-----------------------------------------------

9

7 Mechanical conditions ----------------------------------------------- 10

Product Specification

CPF112G

Data sheet subject to change without notice RDPS-POTS433(R1)12/30/2002

SHEET 3 OF 10

1. Introduction:

The CPF112G 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 POTS splitter on the customer premises side consists of
a low pass section.

The CPF112G integrates low pass filters that block the high frequency energy reaching to
the POTS device and provide isolation from impedance effects of the POTS device on ADSL.
In addition, these filters 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. The electrical and transmission specification is based on
ITU-T G.992.1 and customer’s requirements.

2. References:

Ref. 1 : ETS 300 001 Attachments to the Public Switched Telephone Network
( PSTN ); General technical requirements for equipment
connected to analogue subscriber interface in the PSTN.
Ref. 2 : ETSI 101 728 Network and customer installation.

Ref. 3 : ITU-T K.21 Resistibility of subscribers terminal to overvoltages and
overcurrents.
Ref. 4 : ETSI 101 952-1-1 V1.1.1 Specification of the low pass part of ADSL / POTS
splitters.