CDNs

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.

 

 

 

 

  • CDN_ST46ST8

The three types are:

 Type  Description
 Standard  Conventional CDNs. Compliant to IEC61000-4-6.
Wide range of models to suit a wide variety of cable types
 Versatile  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.
 Enhanced  Identical to the versatile type described above, but with the additional benefit of the inclusion of a feedback network and detector such that the applied stress level can be monitored and used (if required) as part of the level control system.

Standard

These are grouped into three classes:

    • Mains power cables
    • Unscreened cables
    • Screened cables

Versatile and Enhanced

These types are multi-functional. This versatility means that the need to carry a large range of different types of CDN to cope with potential requirements is avoided. One type of calibration adaptors fits all models.  Each type includes just 6 basic models:

 

TYPE VERSATILE ENHANCED CABLES
Mains power S46M3 E46M3 M1, M2, M3
Screened cables up to 25 cores S46S25 E46S25 S1 TO S25
Unscreened cables up to 24 cores S46T24 E46T24 T2, T3, T4, T5, T6, T8, T12, T24
Telecom cables to 8 cores S46ST8 E46ST8 1, 2 OR 4 TWISTED PAIRS
Telecom cables to 6 cores S46ST6 E46ST6 SCREENED OR UN-SCREENED 1,2,3 OR 6 CORE
3 Phase high power S46M5/9 --------- M2, M3, M4, OR M5 + AUX LINES

In addition, the S46M5/9 is a multi-function 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 synthesiser system from Laplace offers the capability to work with the enhanced CDNs (as well as standard and versatile types). Other synthesisers will not work in the 'enhanced' mode.

Additional Acessories:

46GP Ground Plane
46XP Extended Ground plane

Associated Downloads

Data Sheet - Versatile and Enhanced CDNs
Enhanced CDNs - Paper presented at the York EMC Symposium 1999
User Manual - CDN - Manual for the S46M3 CDN
Data Sheet - High power CDN