Com-Power CDN-T4E User Manual
Features
Frequency Range 150 MHz to 230 MHz
Designed for IEC / EN 61000-4-6
Two unscreened, balanced pairs
Individual calibration included
Three Year Warranty
Coupling Decoupling Network
CDN-T4E
Description
Com-Power CDN-T4E 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-T4E is designed for testing products
that uses two unscreened, balanced pairs for
communication such as Ethernet. It has a RJ45
connectors for both EUT and AE connection. The
CDN-T4Ecan handle up to 2 Amps 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-T4E fully complies with the
requirements 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 amplier and all accessories
required for the test.
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-T4E 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 of the CDN
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)
Rev. D01.14
Com-Power Corporation 19121 El Toro Road, Silverado, California 92676 (949) 459 - 9600 www.com-power.com
Coupling Decoupling Network
Specications
Product Name Coupling Decoupling Network (CDN)
Compliant Test Standards IEC / EN 61000-4-6
Application Two unscreened, balanced pairs
Frequency Range 150 kHz to 230 MHz
RF Input Voltage 40V (Max)
RF Input Connector 50Ω BNC (Female)
Voltage Rating 124 VAC / 125 VDC (Line to Ground)
Current Rating 2 Amps (Max)
AE and EUT Connections RJ 45
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-T4E
Shorting Adapter Set ADA-T4/T8
Decoupling of Common
Mode Disturbance
150 KHz ≥ 45 dB (RF/AE)
500 KHz ≥ 50 dB (RF/AE)
230 MHz ≥ 50 dB (RF/AE)
Dimensions 8.5 x 4.5 x 3.5 inches
21.5 x 11.4 x 8.8 cm
Weight 2 lbs.
0.9 kg
Accessories Available from
Com-Power for setting test
levels and running the test
ADA-T4/T8 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 119121 El Toro Road, Silverado, California 92676 (949) 459 - 9600 www.com-power.com
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