ISN-T2

Impedance Stabilization Network, 150 kHz–30 MHz — measures common-mode disturbance voltage on a single unshielded balanced pair (Cat. 3 or Cat. 5 cabled networks).

Per EN 55022 [CISPR 22] Figure D.1 circuit topology — meets the applicable requirements of EN 55022:2010+AC:2011 (CISPR 22:2008 Ed. 6.0) and CISPR 16-1-2:2014 Ed. 2.0.

150 Ω common-mode impedance per CISPR 22 — presents a defined termination so the EUT-side disturbance reaching the measurement port is stable and repeatable.

Single unshielded balanced pair telecom ports — xDSL modems, analog telephony, doorbell, and other 2-wire balanced telecom interfaces qualified under CISPR 22/32.

Cat. 3 and Cat. 5 cabled networks — ships with Cat. 3 and Cat. 5 LCL (Longitudinal Conversion Loss) adapters so the same ISN supports either cable category.

Wanted-signal transmission bandwidth 100 MHz — passes the working signal during emissions measurement without distortion of the link.

800 mA per line / 1.6 A per pair, 50 V DC / 32 V AC line-to-ground — supports typical bias and ring/power-feed currents on telecom pairs.

Individually calibrated; pairs with the Com-Power SPA-900TG series spectrum analyzer / EMI receiver for conducted telecom emissions scans.