This unit is a multiplexer which can route any one of 32 input signals
to each of 8 outputs. The inputs are on two 34-pin ribbon cable-type connectors, the outputs are Lemos. All inputs are terminated to 50 Ohms at all times. The outputs drive a 50 Ohm load with the same magnitude as at the input. Even when one signal is routed to more than one output, the input impedance remains 50 Ohms and the outputs get the full amplitude of the input.
Signal amplitudes to plus or minus 5 Volts are handled without distortion, and rise times are under 20 ns. Both digital and analog signals can be handled in the same module.
Control of the module is accomplished through a simple TCP/IP protocol. A simple Tcl/Tk GUI has been implemented, and is available for download. It has 8 sliders to select the desired input for each output. The module occupies one single-width slot in a standard NIM bin.
|The GUI for the switcher module.The colors of the first 4 bars are set to correspond to the colors of Tektronix oscilloscope traces.|