Com-Power CDN-M125E User Manual
Features
Frequency Range 150 MHz to 230 MHz
Designed for IEC / EN 61000-4-6
Single conductor power cable
Individual Calibration Included
Three Year Warranty
Coupling Decoupling Network
CDN-M125E
Description
Com-Power CDN-M125E is a part of the series of
Coupling/Decoupling Networks designed specically
for testing product for conducted immunity per
IEC/EN 61000-4-6.
The CDN-M125E is designed for testing products that
uses a single conductor power cable. It has one 4
mm shrouded banana socket for both EUT and AE
power connections. The CDN-M125E 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 eective grounding.
All Com-Power CDNs are individually calibrated.
The Com-Power CDN-M125E fully complies with the
requirement contained in the IEC 61000-4-6 and
CISPR 16-1-2.
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-M125E
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.
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 amplier and all accessories
required for the test.
Umr= Voltage level measured at the output of the 150Ω to 50Ω
adapter (ADA-515-2)
Com-Power Corporation 19121 El Toro Road, Silverado, California 92676 (949) 459 - 9600 www.com-power.com
Test Levels
Open Circuit Voltage
1 0.167
3 0.5
10 1.67
Umr
Rev. D01.14
Coupling Decoupling Network
Specications
Product Name Coupling Decoupling Network (CDN)
Compliant Test Standards IEC / EN 61000-4-6
Application Single conductor power cable
Frequency Range 150 kHz to 230 MHz
RF Input Voltage 40V (Max)
RF Input Connector 50Ω BNC (Female)
Voltage Rating 250 VAC / 350 VDC (Line to Ground)
Current Rating 25 Amps AC / 17 Amps DC (Max)
AE and EUT Connections 4 mm shrouded banana sockets
Common Mode Impedance 150 kHz - 26 MHz: 150Ω ± 20Ω
26 MHz - 80 MHz: 150Ω + 60Ω / – 45Ω
80 MHz - 230 MHz: 150Ω + 60Ω / – 60Ω
Voltage Division Factor 9.5 dB +4 / -1
CDN-M125E
Shorting Adapter Set ADA-M125E
Decoupling of Common
≥ 40 dB (EUT/AE)
Mode Disturbance
Dimensions 6 x 6 x 13 inches
15.2 x 15.2 x 33 cm
Weight 5 lbs.
2.3 kg
Accessories Available from
Com-Power for setting test
levels and running the test
ADA-M125E shorting adapters
ADA-515-2 150Ω to 50Ω adapters
TEP-050 50Ω Terminator
1, 3, 6, 10, 20, 30 dB Power Attenuators
Directional Coupler
ACS series Power Ampliers
All values are typical values unless otherwise specied.
Specications are subject to change without notice.
Typical data
Impedance
230
210
190
170
150
130
Impedance (Ω)
110
90
70
50
0 1 10 100 1000
Frequency (MHz)
ADA-515-2 Adapter Set
TEP-050 Terminator
Phase
25
20
15
10
5
0
-5
Angle (degrees)
-10
-15
-20
-25
0 1 10 100
Frequency (MHz)
Rev. D01.14
Com-Power Corporation 19121 El Toro Road, Silverado, California 92676 (949) 459 - 9600 www.com-power.com
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