Introduction：
CDN AF4 is an unbalanced line coupling decoupling network product manufactured by German SCHWARZBECK company, which can test four unshielded or unbalanced cables of EUT, and the product is authorized to be sold and quoted service by Shenzhen EYT agent.
This CDN coupling/decoupling network device supports an input AC voltage of 100V or a DC voltage of 150V at the DUT, has a rated input current of 4A, and can connect up to four unshielded or unbalanced data lines from the DUT.
AF Sequence CDN Scope of application:
AF Sequence CDNs are designed to be used by EMC testers for conducted common mode immunity testing according to IEC 61000-4-6 Annex D.2. We generally recommend that our customers use these CDNs for interconnecting cables between AEs and EUTs, and before settling on an AF Sequence CDN, you should prioritize the use of an AF Sequence CDN.CDN-M type,CDN-T type,CDN-S type coupled decoupling networksThe selected CDN should not unduly affect the functional signaling of the EUT, and the AF type CDN should only be used as a last resort when there is no alternative.
Technical parameters：
<<<<提醒：左右滑动表格>>>>| Model number | CDN AF4 |
| Device name | Unbalanced line coupling decoupling network |
| Number of cables under test | Four lines can be measured |
| Type of cable under test | Unshielded Cable - Data Cable Unbalanced Cable - Data Cable |
| manufacturer | Schwarzbeck |
| agent | EUT TEST |
| Test frequency range | 150kHz-230MHz |
| Common mode impedance of CDN | At 150 kHz - 24 MHz: 150 Ω ±20 Ω At 24MHz - 80MHz: 150 Ω +60 Ω / -45 Ω 80 MHz - 230 MHz: 150 Ω ±60 Ω See common mode impedance graph below for detailed values. |
| partial pressure coefficient | 9.5dB |
| Maximum RF Voltage | 30V |
| Maximum input power | 6W ≈ 37dBm |
| connector | BNC |
| impedance | 50Ω |
| Maximum Input Voltage | 100V AC 150V DC |
| saturation current | 4A |
| size | 216 mm*105 mm*108 mm |
| weight | 1.4 kg |
| Recommended Calibration Options | CA 4/4 SR 30/4 SR 100-6W |
Common mode impedance plot:
The following figure shows the common mode impedance curve of this product in accordance with the requirements of IEC 61000-4-6 and GBT 17626.6 conducted immunity test standard, the red line in the figure represents the impedance value range given by the standard.
Common mode impedance graph
Product Recommendation:
This product can only test two interconnecting cables. If this does not meet your requirements, we also offer the following AF Sequential Coupling Decoupling Networks with a wide range of interconnecting cable counts:
- CDNAF2 Tests 2 unshielded unbalanced lines
- CDNAF3 Tests 3 unshielded unbalanced lines
- CDNAF4 Tests 4 unshielded unbalanced lines
- CDNAF6 Tests 6 unshielded unbalanced lines
- CDNAF8 Tests 8 unshielded unbalanced lines
Other types of CDN recommendations:
- Learn how to shop for a CDN?
- Need CDNE?
- Need more CDN & CDNE Coupling & Decoupling Networks models with test voltages and number of cables under test?
Please go to the following link to view:
Difference between CDN and CDNE Schwarzbeck Coupling Decoupling Networks Product Catalog
