Introduction：
ISN S8 is a shielded twisted-pair impedance stabilization network produced by Schwarzbeck, Germany and authorized for sale by EUTTEST in Shenzhen, China. It can be used in EMC labs to test the conductive emission of shielded CAT6 twisted-pair cables with up to 4 pairs of wires.
The ISN S8 can be used to perform voltage conducted emission tests on communication equipment or data processing equipment in accordance with relevant national standards such as CISPR 22 and GB9254.The equipment schematic diagram of the ISN S8 is shown in the figure below:
Device schematic for ISN S8
As can be seen from the diagram above, the ISN must provide sufficient separation from the device under test, the EUT, and the auxiliary equipment, the AE, which is the device or load with which the EUT communicates with the other devices. The conducted voltage interference signal from the circuit under test will be coupled to the BNC connector output on the top of the ISN S8, which will then be connected to an external EMI test receiver or spectrum analyzer to display the test data.
The ISN S8 is also compliant with the AAN device requirements of CISPR32, details of which can be found by clicking on the link below:
How to select ISNs and AANs by test standard requirements?
Technical data of the ISN S8:
| Equipment Model | ISN S8 |
| manufacturer | Schwarzbeck |
| Device name | Impedance Stabilization Network |
| Applicable cable type | Shielded Twisted Pair |
| Frequency range | 150 kHz - 230 MHz |
| Type of cable under test | 4 x STP (shielded twisted pair) 100 Ω impedance |
| connector | RJ 45 |
| Maximum line/ground voltage | 150 V DC 100 V AC |
| Maximum line current | 1A DC |
| impedance | 150 kHz - 30 MHz:: 150 Ω ±20 Ω 30MHz-230MHz: 150 Ω + 60 Ω/-45 Ω |
| phase angle | 0° ±20° |
| agent | Euttest.com |
| test port | 50 Ω BNC |
| Maximum Test Port Voltage | <20V AC |
| voltage divider | 150 kHz - 30 MHz:: 9.5 dB ±1 dB 30MHz-230MHz: 9.5 dB +4 dB/-2 dB |
| connector | RJ45-CAT6 |
| size | 225 mm x 129 mm x 105 mm |
| weight | 1265g |
| Meet the standard | CISPR 22 CISPR 32 EN 55022 |
Technical data charts:
Voltage dividing factor graph for ISN S8
Impedance Curve of ISN S8
