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®
R&S
TS-PMB
Coupling relays separate the local analog bus lines (LAB) on the R&S TS-PMB from
the bus lines on the analog bus backplane. The firmware automatically switches these
relays selectively when at least one I/O channel is switched to the corresponding local
analog bus. When an I/O channel is no longer switched to a bus, the corresponding
coupling relay is automatically opened. This function can be turned on or off at any
time. The coupling relays can also be switched manually.
5.5 Interfaces
(see
The SPI interface (Serial Peripheral Interface) is used for communication with rear I/O
modules. The R&S TS-PMB is controlled via CAN interface (Controller Area Network).
5.6 Power supply
The R&S TS-PMB is operated with a voltage of 5 V. The power supply is provided
through connector X20 for Versions V1.x and V2.x. In Version V3.x the power supply is
provided via connector X20 or connector X1. All versions of the R&S TS-PMB can be
operated in the CompactTSVP TS-PCA3 and in the PowerTSVP TS-PWA3.
Since the CompactTSVP TS-PCA3 no longer makes a 5-V power supply available on
connector X20 starting with backplane Version V4.x , only R&S TS-PMB modules of
Version V3.x can be operated with this backplane version. R&S TS-PMB modules of
Version V2.x require a change to TAZ 2.14 and a rear IO module TS-PRIO.
User Manual 1153.5233.12 ─ 05
Figure
3-2)
Function Description
Power supply
10
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