The Rohde & Schwarz ENY41 is a four-wire Artificial Mains Network (AMN) and Line Impedance Stabilization Network (LISN) engineered for conducted emission and immunity testing of unshielded symmetrical telecommunication ports. This coupling network terminates EUT interfaces with 150 Ω asymmetrical impedance and decouples test circuits from interference originating in Auxiliary Equipment ports.
Technical Specifications
• Frequency Range — Emission: 150 kHz to 30 MHz
• Frequency Range — Immunity: 150 kHz to 80 MHz
• Asymmetrical Impedance: 150 Ω ± 20 Ω (0.15 MHz to 30 MHz); 150 Ω ± 40 Ω (150 kHz to 80 MHz)
• Phase Angle: 0° ± 20° (0.15 MHz to 30 MHz)
• Voltage-Division Factor: Typically 10 dB
• Signal Transmission Bandwidth: Up to 100 MHz (symmetrical impedance 100 Ω)
• Operation Voltage: TN/TT supply networks fused to maximum 16 A
• Enclosure Rating: IP2X protection; Pollution Severity 2; Overvoltage Category 2
– Key Features
• Single four-wire network configuration
• Includes two adapter sets: Type I (RJ45 connectors) and Type VI (screw-on connections)
• Optional adapter sets available for 10BaseT, 100BaseT, ATM, FDDI, and ISDN primary rate access
• Bare screw threads for reference ground plane connection (horizontal or vertical mounting)
• Prescribed operating position: housing floor facing down
– Standards Compliance
Meets CISPR 22, EN 55022, CISPR 24, EN 55024, IEC 61000-4-6, CISPR 32, and EN 55032. Tested and calibrated to CISPR/A/307/CD.
– Typical Applications
Conducted emission measurement and immunity testing of telecommunications equipment on symmetrical ports; decoupling of test setups from auxiliary equipment interference.
