CDN for 8 Line (4 Balanced Pairs)

(855) 364-2362

CDN-T8E

150 kHz to 230 MHz

CDN for 8 Line (4 Balanced Pairs)

Designed for conducted immunity testing in accordance with IEC/EN 61000-4-6 and CISPR 16-1-2, enabling controlled RF coupling onto four balanced unscreened conductor pairs commonly used in Ethernet and multi-pair communication interfaces.
Covers a frequency range of 150 kHz to 230 MHz, supporting the full conducted RF immunity spectrum required by international EMC immunity standards.
Intended for cables with four unscreened balanced pairs, making it suitable for systems that use a standard Ethernet (RJ45) connector, where all four balanced pairs must be tested simultaneously.
Implements the specified 150 Ω common-mode impedance across the test band, ensuring compliance with impedance profiles defined by IEC/EN 61000-4-6 and CISPR 16-1-2.
Supports up to 40 V RF input voltage and 1.5 A continuous current, allowing stable application of conducted immunity test levels while protecting the EUT and auxiliary equipment.
Equipped with RJ45 connectors for both EUT and auxiliary equipment connections and a 50 Ω BNC RF input, enabling direct connection of Ethernet-based devices without modifying the cable or connector.
Provides verified common-mode decoupling performance, isolating auxiliary equipment from injected RF disturbances while maintaining uninterrupted data communication during immunity testing.
Supplied with individual calibration and a defined voltage division factor, ensuring accurate, repeatable, and traceable establishment of calibrated drive levels.
Used to inject RF common-mode disturbances across all four balanced pairs of an Ethernet cable simultaneously, ensuring realistic immunity evaluation of devices that rely on full Ethernet connectivity during operation.
Ideal for testing Ethernet-enabled products such as industrial controllers, network switches, routers, IP cameras, PLCs, gateways, and automation equipment that must remain operational while exposed to conducted RF disturbances.
Enables manufacturers to verify conducted immunity performance of any product using a 4-pair balanced Ethernet interface, including PoE-powered devices, networked sensors, and communication-intensive industrial systems.
Integrates into complete conducted immunity test systems when used with Com-Power ADA-T4/T8 shorting adapters, ADA-515-2 150 Ω to 50 Ω adapter sets, TEP-050 50 Ω terminator, appropriate attenuators or couplers, and Com-Power ACS series power amplifiers.

Frequency Range 150 kHz to 230 MHz
Designed for IEC / EN 61000-4-6
Four unscreened, balanced pairs
Individual calibration included
Three Year Warranty

Product Name: Coupling Decoupling Network (CDN)
Compliant Test Standards: IEC / EN 61000-4-6
Application: Four unscreened, balanced pair
Frequency Range: 150 kHz to 230 MHz
RF Input Voltage: 40 V (Max)
RF Input Connector: 50 Ω BNC (Female)
Voltage Rating: 124 V AC / 125 V DC (Line to Ground)
Current Rating: 1.5 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
Decoupling of Common Mode Disturbance:
- 150 KHz ≥ 45dB (RF/AE)
- 500 KHz ≥ 50dB (RF/AE)
- 230 MHz ≥ 50dB (RF/AE)
Dimensions: 8.5 x 4.5 x 3.5 inches or 21.5 x 11.4 x 8.8 cm
Weight: 5 lbs. or 2.3 kg
Accessories Available from Com-Power for setting test levels and running the test:
- ADA-T4/T8 shorting adapters
- ADA-515-2 150 Ω to 50 Ω adapters
- TEP-050 50 Ω Terminator
- ATTN-6-100W Power Attenuator
- DCU-300-100W Directional Coupler
- ASC series Power Amplifiers