CPF121F 查看數據表（PDF） - YCL Electronics

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CPF121F

Asymmetric Digital Subscriber Line

YCL Electronics  

Product Specification

CPF121F

4.5. ZR and ZRL defined ( clause 5.2.2 ) : 1

For most requirements relating to voice band frequencies described in the present

document, either the terminating impedances ZR or ZSL is used to terminate the POTS port

or the Line port. ZR is the European harmonized complex impedance, ZSL is an impedance

used in TBR 038 [1] to simulate a short line terminated in 600 Ω .

Impedance ZR

Impedance ZSL

4.6. ZRHF defined ( clause 5.2.3 ) : 1

For requirements relating to ADSL frequencies described in the present document, the

terminating impedance ZRHF is used to terminate POTS and line ports of the low pass filter.

This is the European harmonized complex impedance ZR with the modification proposed in

TR 102 139 [2]. This network is shown in below.

Impedance ZRHF

4.7. Zon defined ( clause 5.2.4 ) : 1

For some on - hook requirements ( as defined in clause 5.1.2 ) described in the present

document, the terminating impedance ZON is used.

Actual impedances will vary greatly especially over the ADSL frequency range and thus the

impedance model adapted here is just intended for the verification of splitters. It is not

intended to be an equivalent circuit for a POTS TE.

Data sheet subject to change without notice

Impedance model to be used for

some on-hook requirements

RDPS-POTS438(R1)12/25/2002

SHEET 10 OF 14

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