User guide

Features
Frequency Range 150 MHz to 230 MHz
Designed for IEC / EN 61000-4-6
Two conductor power cable
Individual Calibration Included
Three Year Warranty
Application
During conducted Immunity testing, CDNs are
utilized to provide a means of coupling RF common
mode signals to each line. In addition, CDNs provide
the required common mode impedance to the EUT,
isolation to the auxiliary equipment via common
mode decoupling of the disturbance signals and
provide uninterrupted communication between
the EUT and auxiliary equipment.
Before you begin testing with the CDN-M225E
you will need to establish calibrated drive levels
corresponding to your desired test levels. During
drive level calibration, the RF signal level being
injected to the CDN is adjusted incrementally until
the voltage level measured at the 150Ω to 50Ω
adapter (ADA-515-2) connected to the EUT port is
approximately equal to the Umr value given in the
table below. The ADA-515-2 and accessories needed
for this test are available from Com-Power.
Test Levels
Open Circuit Voltage
Umr
1 0.167
3 0.5
10 1.67
Umr= Voltage level measured at the output of the 150Ω to 50Ω
adapter (ADA-515-2)
Description
Com-Power CDN-M225E is a part of the series of
Coupling/Decoupling Networks designed specically
for testing product for conducted immunity per
IEC/EN 61000-4-6.
The CDN-M225E is designed for testing products
that uses two conductor power cable . It has two 4
mm shrouded banana socket for both EUT and AE
power connections. The CDN-M225E can handle up
to 25 Amps AC and 17 Amps DC of current.
The RF disturbance signal coupling port is female
BNC. It can handle up to 40V of RF input Voltage.
The bottom surface of the CDN is not painted for
easy and eective grounding.
All Com-Power CDNs are individually calibrated.
The Com-Power CDN-M225E fully complies with
the requirement contained in the IEC 61000-4-6
and CISPR 16-1-2.
All Com-Power CDNs can be purchased separately
or as part of the CIS series conducted immunity test
system. This is a pre-packaged solution that includes
an ACS series power amplier and all accessories
required for the test.
Coupling Decoupling Network
CDN-M225E
Com-Power Corporation 19121 El Toro Road, Silverado, California 92676 (949) 459 - 9600 www.com-power.com
Rev. D01.14