Anritsu BERTWave Series, Operation Manual, Page: 110 / 466

Chapter 2 Before Use
2-36
2.10.2 Precautions When Using Bias-T
When connecting an external device such as a Bias-T to the output
connectors of the MP2110A, if the output signal includes any DC voltage,
variations in the output of the DC power supply or load may change the
level of the output signal, risking damage to the internal circuits.
CAUTION
•
Do not connect or disconnect any external devices
while DC voltage is impressed.
•
Only switch DC power sources ON and OFF when all
equipment connections have been completed.
Figure 2.10.2-1 Bias-T Connection Example
<Recommended procedures>
Measurement Preparation 1:
1. Connect the MP2110A and all equipment.
2. Set the DC power supply output to ON.
3. Set the MP2110A output to ON, and start measurement.
DUT
DC power source
50
Ω
Bias-T
Set output ON/OFF after
completing connections.
To protect DUT and
MP2110A
Do not connect/disconnect while DC voltage impressed.
MP2110A
Be sure to connect the ground structure (like frame ground)
and the ground terminal with a ground wire.