YCL MF612A Datasheet

		Product Specification
				MF612A
	File No		RDPS-MF039
	Revision		R0
	System Application		Asymmetric Digital Subscriber Line
	Product Type		Microfilter
	Product Name		MF612A
	Date		Mar. 7th, 2002
	Issued By		Grant TengDesign Engineer, R&D_1
			[e-mail]
	Approved By		Roger Wu – Manager, R&D_1
			[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.

Data sheet subject to change without notice	RDPS-MF039(R0)02/22/2002
	SHEET 1 OF 13

	Product Specification
		MF612A
Table of contents
Item	Description	Page
1.	Introduction -----------------------------------------------	3
2.	Reference -----------------------------------------------	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 -----------------------------------------------	8
	4.5.1. Insertion loss at 1004 Hz -----------------------------------------------	8
	4.5.2. Attenuation distortion in the voice band -----------------------------------------------	9
	4.5.3. Return loss -----------------------------------------------	10
5.	Environmental conditions -----------------------------------------------	11
	5.1. Resistibility to overvoltages and -----------------------------------------------	11
	overcurrents
	5.2 : Climatic conditions -----------------------------------------------	11
	5.2.1. Operating temperature -----------------------------------------------	11
	5.2.2. Storage and transport -----------------------------------------------	11
	5.2.3. Operation humidity -----------------------------------------------	11
6.	Reliability conditions -----------------------------------------------	12
7.	Mechanical conditions -----------------------------------------------	13
	7.1. Mechanical -----------------------------------------------	13
	7.2. Connector information -----------------------------------------------	13

Data sheet subject to change without notice	RDPS-MF039(R0)02/22/2002
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Product Specification

MF612A

1. Introduction:

The In-Line Microfilter has been specifically designed to implement the functionality of low pass filter in G.lite system. G.lite technology is similar to full rate ADSL in using DMT technology but operates at a lower data rate of up to 1.5 Mbps downstream and 512 kbps upstream, depending on line conditions and lengths.

For POTS voice band service, the low pass filter provide protection from ADSL signal which may impact through non-line or other effects remote devices ( handset, fax, voice band modem etc. ) and central office operation. For ADSL signal, it also provide protection from the high frequency transients and impedance effect that occur during POTS operation ( ringing transients, on-hook, off-hook transients and so on ). Because the Microfilter 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 filter to protect against line overstress which could damage the filter itself.

2. Reference:

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 : ANSI T1.413 Network and Customer Installation Interfaces Asymmetric Digital Subscriber Line (ADSL) Metallic

Interface

Ref. 3 : ITU-T G.992.1 Asymmetrical Digital Subscriber Line (ADSL) Transceiver Ref. 4 : T1E1.4/2001-007R3 In-Line Filter Standard

Ref. 5 : ITU-T K.21 Resistibility of Telecommunication Equipment Installed in Customer Premises to Overvoltages and Overcurrents

Ref. 6 : ITU-T K.44 Resistibility tests for telecommunication equipment exposed to overvoltages and overcurrents Basic Recommendation

Data sheet subject to change without notice	RDPS-MF039(R0)02/22/2002
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Product Specification

MF612A

3. Abbreviations:

ADSL	Asymmetric Digital Subscriber Line
CO	Central Office
CPE	Customer Premise Equipment
POTS	Plain Old Telephone Service
RT	Remote Terminal
ADSL-NT	Network termination of ADSL

4.Technical requirements:

4.1.Schematic:

The following drawing illustrate the schematic of this product.

	RJ-11	RJ-11 Jack
	Plug

4.2. ZHP-r Definition:

To facilitate testing of the In-Line Filter independently of the actual modem or specific

vendor,ZHP-r is defined to allow proper termination of the Line port during voice band

testing. The ZHP-r is valid only for voice band frequency. The combination of capacitors in

the ZHP-r is only representative. The input shall be 27nF however derived. ZHP-r equivalent circuit is shown below.

0.056 uF
0.47 mH	100 ohms
0.056 uF

Data sheet subject to change without notice	RDPS-MF039(R0)02/22/2002
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