Line Impedance Stabilzation Networks (LISNS) for conducted EMI testing

LISNs for conducted EMI / EMC emissions testing

Line Impedance stabilization Networks (LISNs)

Com-Power Line Impedance Stabilization Networks (LISN) are intended for electromagnetic interference (EMI) testing and certification of electronic products at an EMC test laboratory. The LISN were designed and built to match the impedance characteristics given by the individual test specification. During the conducted emissions tests, the LISN isolates the equipment under test from interference from external power source. It also stabilizes the line impedance and provide a 50 Ohm RF output for connecting it to the spectrum analyzer.

Models LI-115, LI-210 and LI-215 have two networks housed in single enclosure for single phase or two wire applications. It has a standard 15 Amp NEMA socket to power the EUT. All other models have separate enclosure for each network and are shipped in pairs for single phase testing. Additional networks can be purchased separately for testing more than one phase.

LISN Model	Frequency Range (MHz)	Inductor uH	Current Rating Amps	EMI Test Specification
LI-125	0.15-30	50	25	FCC, CISPR, EN, AS/NZL
LI-150	0.15-30	50	50	FCC, CISPR, EN, AS/NZL
LI-325	0.15-400	5	25	FAA - RTCA DO160C
LI-400	0.01-10	50	30	MIL-STD 461D
LI-550	0.10-100	5	50	CISPR 25
LI-115	0.15-30	50	15	FCC, CISPR, EN, AS/NZL
LI-215	0.01-30	250 & 50	15	CISPR, EN
LI-210	0.01-30	250 & 50	10	CISPR, EN

Last Updated: 12/12/2007

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