Impedance Stabilization Networks (ISN's)

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Impedance stabilization networks (ISN's) are similar to LISN's but used for conducted emissions measurements on signal and data lines. They differ from LISN's in that they can perform Comon-Mode impedance measurements. CISPR 22 and CISPR 32 are common standards requiring the use of an ISN.

ISN's are referred to as an asymmetric artificial network (AAN) in CISPR 16-1-2.

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  • Com-Power

    SKU: sku-1131

    Com-Power ISN-T8 Impendace Stabilization Network and Calibration Kit

    Weight: 1.4 lbs. (0.6 kg) [ISN + LCL Adapter + Connecting Adapter]
    Current Rating: 800 mA (per line), 1.6 Amps (per pair)
    Dimensions: see photo in images
    Frequency Range: 150 kHz to 30 MHz
    Isolation: 150 kHz to 1.5 MHz: 35 to 55 dB 1.5 MHz to 30 MHz: 55 dB
    Mains & EUT Connections: D-sub 25 pin female connectors
    RF Connector: 50Ω N-type (female)
    Standards Met: CISPR 16-1-2, CISPR 22/32
    Voltage Rating: 50 VDC / 32 VAC (line to ground @ 50/60 Hz)
  • Teseq

    SKU: sku-1080

    Rent Teseq ISN T8 Impedance Stabilization Network (ISN) for Unscreened Balanced Pairs

    Weight: 550 grams (1800 grams with storage case)
    Application/Test Type: 1000BaseT and Power Over Ethernet (PoE) testing of 1 up to 4 pair(s) of unscreened balanced communication lines
    Common Mode Impedance: 150 Ω ±20 Ω
    Current Rating: 600 mA (line), 1200 mA (pair)
    Decoupling of Common Mode Disturbance: ≥35 dB to ≥55 dB/≥55 dB
    Dimensions: 10.5 cm x 6.5 cm x 11.0 cm (19.0 cm with adapter plugged in)
    Frequency Range: 150 kHz to 30 MHz
    Mains & EUT Connections: Adapter Set includes RJ11, RJ45, LCL and more.
    RF Connector: BNC 50 Ω
    RF Input Voltage: 15 V max
    Standards Met: CISPR 15; CISPR 16-1-2; CISPR 16-2-1;CISPR 22; CISPR 32; EN 61000-6-3; EN 61000-6-4
    Voltage Division Factor: 10 dB ±1 dB
    Voltage Rating: 63 Volts AC, 100 Volts DC (line to ground); Test Voltage: 200VDC, 2 seconds
  • Teseq

    SKU: sku-861

    Teseq ISN T800S Impedance Stabilization Network per CISPR 22/32 Figure D.3/G.3

    Weight: 1.2 lbs. (0.55 kg)
    Connectors: 105 x 65 x 110 mm
    Current Rating: 600 mA (per line), 1.2 Amps (per pair)
    Dimensions: see photo in images
    Frequency Range: 150 kHz to 30 MHz
    Isolation: Cat 3 - 150 kHz to 30 MHz: 39.3 to 55 dB Cat 5 - 150 kHz to 2 MHz: 65 dB Cat 5 - 2 MHz to 30 MHz:: 49.3 dB to 65 dB
    Mains & EUT Connections: RJ11 and RJ45
    RF Connector: 50Ω N-type (female)
    Standards Met: CISPR 16-1-2, CISPR 22/32
    Voltage Rating: 63 VAC 100 VDC
  • Com-Power

    SKU: sku-395

    Com-Power ISN-T8 Impedance Stabilization Network 150 kHz to 30 MHz

    Weight: 1.4 lbs. (0.6 kg) [ISN + LCL Adapter + Connecting Adapter]
    Current Rating: 800 mA (per line), 1.6 Amps (per pair)
    Dimensions: see photo in images
    Frequency Range: 150 kHz to 30 MHz
    Isolation: 150 kHz to 1.5 MHz: 35 to 55 dB 1.5 MHz to 30 MHz: 55 dB
    Mains & EUT Connections: D-sub 25 pin female connectors
    RF Connector: 50Ω N-type (female)
    Standards Met: ISPR 16-1-2, CISPR 22/32
    Voltage Rating: 50 VDC / 32 VAC (line to ground @ 50/60 Hz)
    $4,295.00
  • SKU: sku-267

    FCC CISPR 22 Impedance Stabilization Network (ISN) FCC-TLISN-T4-02

    Weight: 1.0 kg (2.2 pounds)
    Application/Test Type: Measuring conducted emissions on two balanced pair telecom ITE’s.
    Common Mode Impedance: 150 ± 20Ω
    Current Rating: 250 mA Maximum
    Decoupling of Common Mode Disturbance: 35 dB min. to 150 kHz; 55 dB min up to 30 MHz
    Dimensions: 100 x 100 x 235 mm
    Frequency Range: 150 kHz to 30 MHz
    Mains & EUT Connections: D-sub 25 female
    RF Connector: 50Ω BNC female
    Voltage Division Factor: 9.5 dB ±1 dB
    Voltage Rating: 63 VAC RMS, 100 VDC
  • Com-Power

    SKU: sku-581

    Rent Com-Power ISN-T8 for One, Two, Four, Unshielded Balanced Pair, CAT-3, CAT-5

    Weight: 1.4 lbs. (0.6 kg) [ISN + LCL Adapter + Connecting Adapter]
    Current Rating: 800 mA (per line), 1.6 Amps (per pair)
    Dimensions: see photo in images
    Frequency Range: 150 kHz to 30 MHz
    Isolation: 150 kHz to 1.5 MHz: 35 to 55 dB 1.5 MHz to 30 MHz: 55 dB
    Mains & EUT Connections: D-sub 25 pin female connectors
    RF Connector: 50Ω N-type (female)
    Standards Met: ISPR 16-1-2, CISPR 22/32
    Voltage Rating: 50 VDC / 32 VAC (line to ground @ 50/60 Hz)
    $410.00

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