Commissioning
R&S
®
TS-PCA3
49
User Manual 1152.3908.12 ─ 19
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System-specific connectors (e.g. D-sub) can be installed at the rear, from where
signals are connected to the analog bus or the adapter interface. HF signals can
also be carried in this way because there is ample space for suitable connectors.
4.5.2
Analog Bus
The analog bus is available at all slots of the R&S TS-PCA3 with its own backplane.
Access for plug-in modules is implemented by connectors X1 ... X16 at the various
slots and is described in
on page 18. The following are
available
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8 bus-structured lines
for user-defined signal paths up to max. 125 VDC (1 A)
between ROHDE & SCHWARZ- specific plug-in modules.
Only the Rohde & Schwarz plug-in modules use the analog bus directly. However
external access to the analog bus is possible using the analog bus connector at the
back of the unit.
Connections via the analog bus are used by matrix and relay modules. Signal injection
is generally software controlled.
4.5.3
PXI Trigger Bus
Plug-in modules can be synchronized with the PXI trigger bus. The external output of
the signals is provided by the system module.
The following signals are available
●
Trigger bus with 8 lines
(PXI_TRIG0 ...7)
4.5.4
Internal Cabling of Short cPCI Modules
Either short or long plug-in modules can be fitted to the front of the R&S TS-PCA3. The
long modules (manufacturer: ROHDE & SCHWARZ) use the entire space between the
backplane and the adapter interface and finish flush with the R&S TS-PCA3 front. The
short modules leave
space for wiring
free up to the front panel.
The wiring space can be used as follows:
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Cabling between short cPCI modules
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Adapting the signals of a short cPCI module to the standard connector of the
adapter interface (e.g. a DIN rail) in the same slot. This can be done using either
loose wiring or an adapter board.
●
Transition cables or plugs from short cPCI plug-in modules with unsuitable plugs to
interfaces suitable for testing.
shows the adaption of a short PXI module to the DIN rail of the adapter
interface using loose wiring.
Cabling