ETS-Lindgren 3725-2M LISN - Manual (Page 14)

The Model 3725/2M Line Impedance Stabilization Network (LISN) is nominally
designed for a current capacity of 25 amperes. This rating may be increased to
30 amperes provided that the duty cycle is reduced to 20% to allow for heat
dissipation. Maximum line-to-line voltage must not exceed the maximum voltage
rating of the unit. See Specifications on page 11 for the applicable maximum
value.
The Model 3725/2M is designed for use in Installation Category II and Pollution
Degree II per lEC-1010 and IEC-664. When installing in a cabinet, make sure
that the convection around the product is not restricted. The ambient temperature
outside the cabinet must be less than the maximum operating temperature of the
Model 3725/2M by 4 ° C for every 100 watts dissipated in the cabinet. If the total
power dissipated in the cabinet is greater than 800 watts, then forced convection
must be used.
Front Panel Connectors and Controls
BNC C ONNECTOR
Connect the Model 3725/2M to the spectrum analyzer or EMI receiver through
the BNC connector.
L INE S ELECT S WITCH
Select the line to be monitored by the two-position selector switch. The line not
selected is internally terminated into 50 ohms. Switching between the two lines
will not generate transients.
Remove the BNC connection before disconnecting power.
RF G ROUND
The Model 3725/2M is provided with an RF bonding stud on both the front and
back panels. The unit should be bonded to a ground plane in normal operation.
E QUIPMENT U NDER T EST C ONNECTION
The Equipment Under Test (EUT) is connected to the Model 3725/2M through
the dual binding posts.
14 | Installation and Application