ETS-Lindgren 4825-2 LISN - Manual (Page 18)

Spectrum Analyzer / Receiver
• Use the BNC connectors on the front panel to connect the spectrum
analyzer or EMI receiver.
• The monitor port which is not being monitored should be terminated
into a coaxial 50-ohm terminator.
Connect the input and output terminals to their proper mains
connections and EUT connections before connecting the monitor port
to the measurement instrumentation; otherwise, power surges may
damage the test instrumentation mixers or attenuators.
• Removal of a terminator and connection to the BNC receptacle will not
generate power surges.
• When the power is to be disconnected, remove the coaxial connection
to the measurement instrumentation first to avoid possible damage.
18 | Installation