Introduction：
NTFM 8131A is the latest AAN - Asymmetric Artificial Network ( Asymmetric Artificial Network ) produced by schwarzbeck, Germany, which is represented by Shenzhen EUTTEST for sales and quotation service." The "Impedance Stabilization Network NTFM 8131 A", also known as T-ISN, is used to measure asymmetric interference voltages on symmetric data or telecommunication lines. Since 2002, the T-ISN has been used to measure asymmetrical interference voltages according to EN 55015 (electrical lighting equipment). In addition, it can be used for measurements according to CISPR 32. In contrast to the widely used T-ISN, the NTFM 8131 A is designed to withstand 400 V AC with a maximum current of 3 A. The NTFM 8131 A is designed to withstand 400 V AC with a maximum current of 3 A.
The NTFM 8131A is a replacement for the NTFM 8131 and meets the requirements of the latest version of the CISPR32 standard for AANs.
We also offer more available ISN impedance stabilization networks and AAN asymmetric artificial networks to choose from. Click on the links below to find out:
How to select ISNs and AANs by test standard requirements?
Technical parameters：
| Equipment Model | NTFM 8131A |
| Device name | AAN - Asymmetric Artificial Network ISN-Impedance matching network |
| manufacturer | Schwarzbeck, Germany |
| agent | Shenzhen EUTTEST |
| Frequency range: | (9 kHz) 150 kHz-30 MHz |
| Impedance (asymmetric): | 150 Ω ± 20 Ω |
| Phase (asymmetry): | 0 ° ± 20 ° |
| The dividing ratio of the asymmetrical voltage: | 10 dB +/-1.5 dB |
| EUT, AE terminals: | 4 mm |
| Measurement Port: | 50Ω BNC |
| Maximum voltage: | 400 V AC |
| Maximum current: | 3 A |
| insertion loss (differential mode): | < 3 dB (100 Ω sym.) |
| Product Dimensions: | 119 mm x 250 mm x 105 mm |
| Weight approximation: | 1.5 kg |
| According to the criteria: | CISPR 16-1.2 CISPR 32 CISPR 15 |
Chart of technical parameters of the equipment:
Common mode port voltage divider for NTFM 8131A
Common Mode Port Decoupling Attenuation for NTFM 8131A
Insertion Loss of NTFM 8131A
Circuit Schematic for NTFM 8131A
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