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

Switching unit


This unit is used for the computer controlled switching of 16 RF signals in the frequency range DC … 100 MHz to one output. The switching positions will be selected by a separate remote control unit (BFD2110).


The switching unit is housed in a 1 U 19“ subrack with very good RF shielding and consists of the following sub-assemblies:

-    relay SP16T
-    control logic
-    TTL interface
-    remote control unit

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 TTL interface.

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:1 switch SP16T
Switching specifications
Impedance:75 Ohm
Frequency range:DC … 100 MHz min.
Insertion loss:1.0 dB max., 0.3 dB typ.
VSWR:1.3 : 1 max.
Isolation:80 dB min.
Input power:10 Watt
Switching elements:failsafe relays without termination
Switching time:20 ms max.
Switching cycles:5 million min.
Further specifications
Control:TTL or tbd.
Remote control unit:16 pushbuttons, with integrated lamp
RF connectors:BNC female
Power supply:195 … 264 VAC, 47 … 63 Hz, redundant
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
Height1 RU
Depthabout 350 mm (without connectors)
Front panel:painted light grey (RAL 7032)
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