R&S N 8000 Series System Manual page 111

Fig. 16 RF connection with adapter
7.2 Connecting Dummy Antenna
The dummy antenna is only connected when putting the system into operation or for main-
tenance and repair purposes.
With some dummy antennas that have coolant monitoring and overtemperature monitoring,
the monitoring equipment can be connected to the transmitter. The main protection loop
(X41.1 and
while the unit is being put into operation).
1. To connect the main protection loop, use the inserted jumper plug and remove the jump-
er.
2. Connect the monitoring cable in place of the jumper.
If you are using an RF patch panel that allows you to switch between the antenna and dum-
my antenna by means of an RF U-link connector (permanent installation), you should con-
nect the dummy antenna monitoring unit to the standby protection loop
in the power distribution). This requires the patch panel messages to be additionally con-
nected to the R&S NetCCU800 transmitter control unit
dummy antenna message, to
the power distribution) is then also active.
2098.0188.72
Chapter 3
X41.2 in the power distribution) can be used here as a temporary measure (e.g.
X12.16
- 3.21 -
(X12.15
GND). Activation of the dummy antenna (via
Installation
(X41.3 and X41.4
antenna message or X12.3
X33
E-1
in