Com-Power CDN-USB-BE User Manual
Features
Frequency range 150 MHz to 230 MHz
Meets CISPR 16-1-2 requirements
USB cables with type B connector
Individual calibration
Three Year Warranty
Coupling Decoupling Network
CDN-USB-BE
Description
Com-Power CDN-USB-BE 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-USB-BE is designed for testing products
that uses USB cables for communication. It has a
USB type B on the EUT side and USB Type A on the
AE side. The CDN-USB-BE can handle up to 1 Amp
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-USB-BE 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-USB-BE
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 119121 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 USB cable with type B connector
Frequency Range 150 kHz to 230 MHz
RF Input Voltage 40V (Max)
RF Input Connector 50Ω BNC (Female)
Voltage Rating 30 VAC / 30 VDC (Line to Ground)
Current Rating 1 Amp (Max)
EUT and AE Connections EUT: Type B, AE: Type A
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 +2 / -1
CDN-USB-BE
Shorting Adapter ADA-USB-BE
(Front and back view)
Decoupling of Common
≥ 50 dB (EUT/AE)
Mode Disturbance
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-USB-BE 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
(Front and back view)
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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