Anritsu BERTWave MP2100B, Operation Manual, Page: 91 / 382

2.15 Precautions for Preventing Damage
2-37
2
Before Use
Notes:
If it is impossible to connect a ground wire to DUT, follow the
instructions below so that the voltage to be measured in step 3
becomes 0 V.
 Check that the 3-pin power cords described in 2.3.2 “Connecting
Power Cord” are used for the BERTWave and DUT.
When the 3-pin power cords are used, take the following actions:
 There may be a disconnection in the ground terminal of the
used power cord. Replace it with a different 3-pin power cord.
 There is a possibility that the ground terminal inside the AC
outlets to which the 3-pin power cords of BERTWave and DUT
are connected is not connected to ground. Connect the 3-pin
power cords to different AC outlets.
Checking the output waveform with an oscilloscope
1. Connect the DUT and the oscilloscope using a cable with an
impedance of 50  .
2. Set the input impedance of the oscilloscope to 50  .
3. Observe the waveform with the oscilloscope, and perform the
following operations to check the observed waveform for surge
voltage exceeding the rated voltage*.
There is a risk of damage if a voltage exceeding the rated voltage* is
generated.
 Turning On/Off the DUT power
 Outputting a pulse from DUT
 Connecting and disconnecting the cable between DUT and the
BERTWave
*: The rated voltage is 1 Vp-p for ED and ±2 V for the scope.