The Tekbox TBISN-T4 is an ISN designed for performing conducted emissions measurements in accordance with the CISPR 22 on unshielded twisted pair telecom cables with 2 balanced pairs. The TBISN-T4 can be used in the frequency range of 150kHz to 30MHz. The device meets the requirements for Longitudinal Conversion Loss (LCL) defined in CISPR 22. It can also be used to stabilise the common-mode impedance between the equipment under test (EUT) and the auxiliary equipment (AE). The TBISN-T4 features two D-SUB 25 ports to connect to the EUT and the AE, as well as an RF measurement port to connect to a receiver or spectrum analyser.
| Frequency range | 150 kHz - 30 MHz |
| Compliance | CISPR 16-1-2, CISPR 22, CISPR 32, CISPR 15 |
| Longitudinal conversion loss | CISPR 22 |
| Impedance | 150 Ω ± 20 Ω (asymmetric) |
| Phase | 0° ± 20° (asymmetric) |
| Max. voltage | 63V AC / 100V DC |
| Max. current | 250mA |
| Artificial hand | 220 pF + 511 Ω |
| RF port | 50 Ω BNC female |
| EUT/AE Connectors | D-SUB 25 |
| Dimensions | 100 x 100 x 235 mm |
| Weight | 1.0 kg |
The Tekbox TBISN-T4 comes with:
| Tekbox TBISN-T4 user manual | Download |