Your contact partner for this product is: Michael Hirschmueller ǀ +49 9078 9695-95 ǀ mh@novotronik.com

Switching unit

GTS0540

This unit is used for the computer controlled switching and attenuation of RF signals in the frequency range DC … 100 MHz.

Design

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
-    power divider 4-way
-    attenuator
-    control logic
-    RS-232 interface
-    manual control

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

Control

The unit is controlled via a RS-232 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:5 power divider 4-way
2 switches SP4T
4 attenuators 63 dB, switchable in 1 dB steps
Switching specifications
Impedance:75 Ohm
Power divider:
Frequency range1.5 … 30 MHz
Switch:
Frequency rangeDC … 100 MHz
Isolation60 dB min.
Insertion loss1.0 dB max.
VSWR1.5 : 1 max.
Attenuator:
Frequency rangeDC … 100 MHz
Attenuation0 … 63 dB in 1 dB steps
Insertion loss1.0 dB max.
VSWR1.4 : 1 max.
RF power:+ 10 dBm min.
Switching time:20 ms max.
Switching cycles:1 million min.
Further specifications
Control:RS-232, RS-485
Manual control:LCD (4x20) and pushbuttons (3x6)
RF connectors:BNC female, 50 Ohm
Power supply:95 … 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
Dimensions:
Height3 RU
Width19“
Depthabout 300 mm (without connectors)
Front panel:painted light grey (RAL 7032)
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