Function Description
R&S
®
TS-PSM2
11
User Manual 1178.2773.02 ─ 01
5 Function Description
5.1 R&S TS-PSM2
5.1.1 Signal concept
The design and construction of the Multiplex/Switch Module R&S TS-PSM2 guarantee
excellent guiding of load and measurement paths. Both „Force“ channels with high cur-
rents as well as „Sense“ channels of voltage and current sources or loads are guided
to the test object via the R&S TS-PSM2. In the opposite direction, test objects can be
switched with single- or multi-pin loads. Eight two-pin 4-to-1 multiplexers make it possi-
ble to select from four measurement signals. These signals can be configured via local
power buses (LPBA and LPBB) to larger multiplexers or can be applied to GND.
Access to the R&S analog bus makes it possible to connect all input channels with
measurement and stimulus modules of the R&S CompactTSVP without the need for
any additional external wiring.
In order to facilitate measurements of high currents without voltage drops interfering,
low-Ohm shunt resisters (22 m
Ω
) are inserted into each channel. The instantaneous
current can be measured indirectly through these shunt resisters as a voltage value.
All channels are shielded in a low-Ohm design. This reduces voltage drops and cross-
talk.
5.1.2 System Functions
The system functions are implemented by a local processor with internal flash.
Communication with the system controller in the R&S CompactTSVP is via the CAN
bus.
The functions of the R&S TS-PSM2 can be summarized as follows:
●
Analog function test
●
Connection of voltage/current sources
●
Connection of test component loads
(original loads, simulated/electronic load)
●
Switch simulation
●
Power Multiplexer
R&S TS-PSM2
