MF612A 데이터 시트보기 (PDF) - YCL Electronics

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MF612A

Asymmetric Digital Subscriber Line

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Product Specification

MF612A

4.5.3. Return Loss:

4.5.3.1. Description:

The return loss of each filter under the specified conditions, either with or without the

ZHP-r attached, shall be greater than the value specified in page 6.

4.5.3.2. Test configuration:

Figure 3. defines the test configuration and the value of the test components that

shall be used for impedance measurement in the voice band for remote POTS filter.

Impedance of the load Z1＝ZL & ZNL-r

Test

Equipment

Microfilter

POTS

Line

port

port

Z1

(load)

ZHP-r

(load)

Figure 3.

Note :

1. ZHP-r＝the impedance presented to the POTS connection by an ATU-R.

2. ZL＝real impedance 600 Ω.

3. ZNL-r＝1330 Ω in parallel with the series connection of a 348 Ω resistor and a

100nF capacitor.

4. Test apparatus: Impedance Analyzer HP 4284A or equivalent.

Data sheet subject to change without notice

RDPS-MF039(R0)02/22/2002

SHEET 10 OF 13

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