CPF906G 查看數據表（PDF） - YCL Electronics

零件编号

产品描述 (功能)

生产厂家

CPF906G

Asymmetric Digital Subscriber Line

YCL Electronics  

Product Specification

CPF906G

4.4. Test method For POTS Function:

4.4.1. Filter Insertion loss test :

4.4.1.1. Description :

Insertion loss /Attenuation mentioned herein is defined as below :

IL = 20 log 10 Vo/Vi  dB

Vi = the voltage value measured is shown in Fig. 4

Vo = the voltage value measured across the Line side shown in Fig. 5

4.4.1.2. Apparatus :

a . Function generator or equivalent

b . Readout oscilloscope or equivalent.

c . Complex load ZL =220 ohm + 820 ohm //115nF

4.4.1.3. Test procedure :

a . Set the measurement Frequency of interest

b . Connecting the source to the Phone side of splitter with the complex load

ZL=220 ohm + 820 ohm //115nF across the Line side.

c . Measure the voltage value and calculate the Insertion loss expressed in

decibel from the equation Insertion loss = 20 log10 Vo / Vi dB

d . Change another frequency of interested the repeat step a~d.

4.4.1.4. Insertion loss test set up measurement :

Fig. 4

ISDN/Phone

ZADSL

Data sheet subject to change without notice

Fig. 5

RDPS-POTS344(R0)04/03/2002

SHEET 10 OF 16

Share Link: