Your contact partner for this product is: Michael Hirschmueller ǀ +49 9078 9695-95 ǀ

Switching unit


This unit is equipped with different relays and is used for the switching of signals in the frequency range DC … 12.4 GHz.


The switching unit is housed in a 3 U 19“ subrack with very good RF shielding and consists of the following sub-assemblies:

-    relay SP4T
-    relay SP8T
-    control logic
-    power supply

All the necessary signal, power supply and earthing connections are provided at the rear.
The mains switch is located on the front panel.


The unit is controlled via a remote control unit
(D-Sub 15-pin).

Special features

The I/O boards are monitored in a processor routine.
A status string can also be requested at any time via the control interface.
The unit is constructed using a modular approach utilising 19” plug-in sub-assemblies which enable ease of installation and maintenance.

Technical datameasured at 25 °C
Configuration:4 switches SP4T
1 switch SP8T
with internal termination
Switching specifications
Impedance:50 Ohm
Frequency range:DC … 12.4 GHz
Insertion loss:0.2 dB max. up to 3 GHz
Isolation:80 dB min. up to 3 GHz
VSWR:1.2 : 1 max. up to 3 GHz
Power handling:1 Watt (cold switching)
Switching time:20 ns typ.
Switching cycles:2 million min.
Further specifications
Control:remote control unit (D-Sub 15-pin)
RF connectors:SMA female, 50 Ohm
Power supply:195 … 264 VAC, 47 … 63 Hz
Connector3-pin, with mains filter and fuses
Mains switch:with integrated lamp
Temperature range:
Operating0 … 50 °C
EMC:in accordance with European standard EN 55022 and EN 50082-1/2
Height3 RU
Depthabout 350 mm (without connectors)
Front panel:painted light grey (RAL 7032)
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