CDNs - coupling-decoupling network
Laplace supply a wide range of CDNs that are fully compliant to IEC61000-4-6.
In addition to a range of 'conventional' CDNs, Laplace are unique in offering two other types. Both types are 'versatile' in that they are configurable, offering great flexibility in terms of the type of cable each model can be used with. This reduces the number of CDNs necessary to hold in stock. The final type is, in addition to being versatile, fitted with an output which monitors the RF level applied to the cable.
The three types of CDN's are:
Conventional CDNs. Compliant to IEC61000-4-6. Wide range of models to suit a wide variety of cable types
Compliant to IEC61000-4-6. Just 5 models. Each model is versatile and can be configured to suit a wide range of cable types. Over 25 different cable types can be accommodated by these 5 models.
Identical to the versatile type described above, but with the additional benefit of the inclusion of a feedback circuit and detector such that the applied stress level can be monitored and used (if required) as part of the level control system.
The Standard types are grouped into the following classes:
• Unscreened cables
• CDNEs for CISPR15 and CISPR16 Testing
• High Current Coupler Decoupler Network - S46M5 9
The Versatile and Enhanced types are multi-functional. Each type includes just 5 basic models:
1. Mains power
Screened cables up to 25 cores
Unscreened cables up to 24 cores
4. Telecom cables to 8 cores
5. Telecom cables to 6 cores
In addition, the S46M5/9 is a multifunction CDN capable of 100A rating for M3 and M2 configuration, or 50A in M5 and M4 (three phase) configurations. This CDN also has an additional 4 cores rated at 6A for ground wire, control or sensing requirements.
Each model can be configured to cover a wide variety of cables, and still maintain full compliance with IEC61000-4-6.
The Enhanced models can be used in conjunction with a suitable signal generator such that closed loop level control can be achieved. This offers the advantages of greater efficiency, reduced RF power requirement and better accuracy for the applied RF level.
Note that the RFIC-4-6 synthesizer system from Laplace offers the capability to work with the enhanced CDNs (as well as standard and versatile types). Other synthesizers will not work in the 'enhanced' mode.
CDNs appears in the following kits:
Laplace Instruments product Line
· · Emissions
· · Immunity
· · Harmonic and Flicker
Reliant EMC Product Lines
· Cells & Chambers
· Comparison Noise Emitters
· Coaxial Cables
· Current Transformers
· Drone Detection Systems
· Dummy Lamps
· Emission Reference Source
· Schwarzbeck Mess Elektronik - Antennas