Impendace Stabilization Network

Model ISN-T8

150 kHz to 30 MHz

ISN-T8 Telecom Lines

Unshielded Telecom Lines

ISN T8 design is based on the circuit illustrated in Figure D.3 of CISPR 22 and Figure F8 of CISPR 32.
The RF Port is a 50 Ohm female BNC connector, located on the top of the ISN. The ISN is equipped with two D-sub 25 pin female connectors located on the front panel (EUT Port) and rear panel (AE Port), providing the interface to the LCL Adapter and Connecting Adapter, respectively.


  • Frequency Range: 150 kHz to 30 MHz
  • For Unshielded Telecomunication Lines 1 to 4 balanced pairs
  • Complies with CISPR 16-1-2, CISPR 22/32
  • Individual Calibration Included

  • Standards: CISPR 16-1-2, CISPR 22, CISPR 32
  • Frequency Range: 150 kHz to 30 MHz
  • Application: Unscreened lines w/up to 4 balanced pairs
  • Max. Current rating: 800 mA (per line), 1.6 Amps (per pair)
  • Voltage rating: 50 VDC / 32 VAC (line to ground @ 50/60 Hz)
  • RF Port Connector: 50O BNC (female)
  • EUT/AE Port Connections: RJ45 (RJ11 also available)
  • Common mode Impedance: 150O 20 Ohms
  • Phase: 0 20
  • Voltage Division Factor: 10.5 dB 1 dB
  • Decoupling Attenuation(minimum Isolation)
    • 150 kHz to 1.5 MHz: 35 to 55 dB
    • 1.5 MHz to 30 MHz: 55 dB
  • Symmetric Insertion Loss: Max: 3 dB 0.25 dB
  • Symmetric Load Impedance: 100O
  • Transmission Bandwidth: >100 MHz
  • Weight: 1.4 lbs. (0.6 kg) [ISN + LCL Adapter + Connecting Adapter]
  • Impedance

    ISN-T8 Impedance

    Phase

    ISN-T8 Phase

    Voltage Division Factor

    ISN-T8 Voltage Divsion Factor

    Decoupling Attenuation (Isolation)

    ISN-T8 Isolation

    Cat. 3 Longitudinal Conversion Loss (LCL)

    ISN-T8 Cat. 3 Longitudinal Conversion Loss (LCL)

    Cat. 5 Longitudinal Conversion Loss (LCL)

    ISN-T8 Cat. 5 Longitudinal Conversion Loss (LCL)