System tour
R&S
®
ZNA67EXT
23
Getting Started 1179.6295.02 ─ 02
state also the output connector for the diplexer power supply (see
disconnected.
Figure 6-4: Standby switch and LEDs
A green light-emitting diode (LED) next to the switch indicates that the instrument
is in ready state. An orange LED further to the right indicates that the instrument
is in standby state. These LEDs are only lit when the converter is properly con-
nected to the power supply and the fuse of the instrument is intact.
6.2.1.2
Power supply connector
To supply the frequency converter, connect the external DC power
supply provided with the converter to the 9
V
/
1.1
A DC input. For
details, see
Chapter 8.4, "DC power supply"
Always switch the instrument to standby state before removing the
power supply.
Risk of instrument damage
The input voltage and current must not exceed the maximum values
according to the rear panel labeling or the data sheet.
Always use the DC power supply included in the delivery to power your fre-
quency converter.
6.2.1.3
Fuse holder
A fuse of type IEC60127 T1 L/H protects the frequency converter
from excess input voltages at the power supply connector. A fuse
of different type protects the diplexer (see
Frequency converters