System tour
R&S
®
ZNA67EXT
30
Getting Started 1179.6295.02 ─ 02
Maximum input voltage at FORCE and EMI suppression
The maximum nominal input voltage and current for the FORCE bias input
connector must not exceed the value quoted in the data sheet. Use a dou-
ble-shielded cable and terminate open cable ends with 50
Ω
to ensure suc-
cessful control of electromagnetic radiation during operation.
The LED labeled ON lights when the diplexer is properly power-supplied. If the
LED does not light, check the following:
●
The power connection between the diplexer and the converter must be in
place (see
●
The converter must be power-supplied and switched on.
●
The fuse at the converter must be intact.
6.3.4
Fuse panel
The other side panel of the diplexer gives access to the bias fuse. Furthermore, it
holds the type label and visualizes the power supply from the converter (pre-
mounted).
Figure 6-9: Fuse panel R&S
ZVA-ZD110 Var 12
A fuse of type IEC 127-F250L protects the diplexer from excess input current at
the Force connector (see
). A fuse of different type protects the fre-
quency converter (see
Chapter 6.2.1.3, "Fuse holder"
Chapter 10.2, "Replacing fuses"
Diplexers