R&S®ENY81-CA6 coupling network

For measurement of asymmetrical (common mode) disturbance voltage

R&S®ENY81-CA6 coupling network
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R&S®ENY81-CA6 coupling network
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R&S®ENY81-CA6 coupling network
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R&S®ENY81-CA6 coupling network, Front HighR&S®ENY81-CA6 coupling network, Side viewR&S®ENY81-CA6 coupling network, Side view

Key facts

  • Eight-wire network
  • In line with CISPR 22:2008 and CISPR 32
  • Compliance with CISPR 16-1-2
  • 75 dB longitudinal conversion loss (LCL)
  • High transmission bandwidth for wanted signal (250 MHz)

For measurement of asymmetrical (common mode) disturbance voltage

The R&S®ENY81-CA6 coupling network measures disturbance voltage on unshielded symmetrical telecommunications ports for Cat 6 cables. The network complies with CISPR 16-1-2 requirements and is used for testing against CISPR 22:2008 and CISPR 32 in the frequency range from 150 kHz to 30 MHz. The wanted symmetrical signal passes through the network with almost no attenuation up to a bandwidth of 250 MHz. At the same time, the coupling network decouples the test circuit from disturbance effects at the associated equipment (AE) port.

Features & benefits


Internal LCL for CAT6 cable category

The R&S®ENY81-CA6 coupling network consists of a high-symmetry basic network with a longitudinal conversion loss of 75 dB for Cat 6 cables. The LCL is internally implemented at the EUT end. For Cat 3 and Cat 5 cables, use the R&S®ENY81 eight-wire coupling network.

Multiple cable standard testing

2-wire, 4-wire and 8-wire unshielded twisted pair cable testing

In line with CISPR 22 and EN 55022 or CISPR 32 and EN 55032, an eight-wire ISN (R&S ENY81 or R&S ENY81-CA6), it measures disturbance voltage on four unshielded symmetrical wire pairs. The R&S ENY81-CA6 can also be used for measurements on two or four wire pairs.


Mechanical design

The R&S®ENY81-CA6 coupling network features bare threaded sockets for connection to a reference ground plane that is arranged either horizontally or vertically. It comes with RJ-45 ports for connecting the EUT and associated equipment (AE). The pin assignment is in line with the EIA/TIA T568B standard.

Functional testing

Functional testing

The R&S®ENY-FTS option in together with a network analyzer allows ISN functional testing, which includes the verification of asymmetrical impedance and phase, the voltage division factor, longitudinal conversion loss and decoupling attenuation.

Available options

General accessories

Order number 1309.8703.13


functional test set

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