Impedance Stabilization Networks (ISN) are required for the measurement of conducted common mode noise on Telecom Cables of Information Technology Equipment (ITE). These measurements are necessary to meet the requirements specified in CISPR 22 and CISPR 32 standards. Functions: The ISN is placed in the path of the cable connecting the equipment under test (EUT) and its support equipment (Also referred to as auxiliary equipment or AE).

• ISN / CDN-C50E Coupling Decoupling Network for 50 ohm Cable 150 MHz to 230 MHz
• ISN / CDN-C75E Coupling Decoupling Network for 75 Ohm Coaxial Cable 150 kHz to 230 MHz
• ISN-T2 for Conducted Emissions from Telecom 150 kHz to 30 MHz
• ISN-T8 Impedance Stabilization Network for 8 lines 150 kHz to 30 MHz
• ISN / CDN-T8SE for RJ-45 Shielded 150 kHz to 230 MHz

ISN / CDN-C50E Coupling Decoupling Network for 50 ohm Cable 150 MHz to 230 MHz

Designed for testing products for conducted immunity per IEC/EN 61000-4-6 and CISPR 16-1-2 that uses 50 Ohm coaxial cables for data communication. CDN-C50E is one of the series of Coupling/Decoupling Networks. It has 50 Ohm BNC connectors for both EUT and AE power connection. The CDN-C50E 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 effective grounding. This is a pre-packaged solution that includes an ACS series power amplifier and all accessories required for the test. Com-Power CDNs are individually calibrated. All Com-Power CDNs can be purchased separately or as part of the CIS series conducted immunity test system.

 

 

 

 Com-Power ISN / CDN-C50E Coupling Decoupling Network Data Sheet

 Com-Power ISN / CDN-C50E Coupling Decoupling Network Manual

 

ISN / CDN-C75E Coupling Decoupling Network for 75 Ohm Coaxial Cable 150 kHz to 230 MHz

CDN-C75E is designed for testing products that uses 75 Ohm coaxial cables for data communication. It has 75 Ohm BNC connectors for both EUT and AE power connection. It 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 effective grounding. Com-Power CDN-C75E is a part of the series of Coupling/Decoupling Networks designed for testing product for conducted immunity per IEC/EN 61000-4-6. The Com-Power CDN-C75E fully complies with the requirements contained in the CISPR 16-1-2. All Com-Power CDNs are individually calibrated and can be purchased separately or as part of the CIS series conducted immunity test system. This is a pre-packaged solution for the EMC testing that includes all required accessories and ACS series power amplifier.

 

• Specifications:
  · Product Name: Coupling Decoupling Network (CDN)

• · Compliant Test Standards: IEC / EN 61000-4-6

• · Application: 75 Ohm Coaxial Cables

• · Frequency Range: 150 kHz to 230 MHz

• · RF Input Voltage: 40 V (Max)

• · RF Input Connector: 50 Ω BNC (Female)

• · Voltage Rating: 310 V AC / 440 V DC (Line to Ground)

• · Current Rating: 1 Amp (Max)

• · AE and EUT Connections: 75 Ohm Female BNC

• · 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 +3 / -1

• · Decoupling of Common Mode Disturbance: ≥ 40dB (EUT/AE)

• · Dimensions: 6 x 6 x 13 inches or 15.2 x 15.2 x 33 cm

• · Weight: 5 lbs. or 2.3 kg

• · Accessories Available from Com-Power for setting test levels and running the test:

• ADA-C50/C75 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

 

 Com-Power ISN / CDN-C75E Coupling Decoupling Network Data Sheet

 Com-Power ISN / CDN-C75E Coupling Decoupling Network Manual

 

ISN-T2 for Conducted Emissions from Telecom 150 kHz to 30 MHz

Unshielded Telecom Lines The Com-Power ISN T2 is used for common-mode disturbance voltage measurements on ports with a single, unshielded, balanced pair for Cat. 3 or Cat. 5 cabled networks.

Specifications

 Com-Power ISN-T2 for Conducted Emissions from Telecom 150 kHz to 30 MHz Data Sheet

ISN-T8 Impedance Stabilization Network for 8 lines

150 kHz to 30 MHz

ISN T8 is for Unshielded Telecom Lines. Its design is based on the circuit illustrated in Figure D.3 of CISPR 22 and Figure F8 of CISPR 32. The RF Port is a 50 Ohm female BNC connector, located on the top of the ISN. The ISN is equipped with two D-sub 25 pin female connectors located on the front panel (EUT Port) and rear panel (AE Port), providing the interface to the LCL Adapter and Connecting Adapter, respectively.

Specifications:

 Com-Power ISN-T8 Data Sheet

 Com-Power ISN-T8 Manual

 

ISN / CDN-T8SE for RJ-45 Shielded 150 kHz to 230 MHz

The CDN-T8SE is used for conducted emissions or immunity tests on devices with shielded (or screened) lines with up to four balanced pairs. It is used when signal/Telecom ports intended for The EUT and AE ports of the CDN-T8SE are equipped with shielded RJ45 receptacles. The RF input/output port is located on the top side of the network, and is fitted with a female BNC- type connector. The outer surface of the network

 

 Com-Power ISN / CDN-T8SE Coupling Decoupling Network Data Sheet

 Com-Power ISN / CDN-T8SE Coupling Decoupling Network Manual