Tour of the Base Module
R&S
®
OSP
‑
B157W8
(PLUS)
R&S
®
OSP
‑
B157WX
32
Getting Started 1178.5808.02 ─ 03
With this RF circuitry, the R&S
OSP-B157W8 or R&S
OSP-B157W8PLUS can
operate flexibly in a test system in a multitude of ways.
●
Incoming signals on each
DUT
channel can be handled as follows:
– Signals can be individually attenuated.
– Signals can be switched to one or more instrument ports of the module.
– The power level can be measured by internal detectors.
●
Incoming signals on each
instrument
port can be handled as follows:
– Signals can be individually attenuated.
– Signals can be switched to one or more DUT ports of the module.
– The power level can be measured by internal detectors.
The exact behavior of the module is test-case-specific and depends on the appli-
cable test standard. This flexibility allows setting up and handling complex test
and measurement sequences with the connected devices.
4.1
Connecting Devices to the Base Module
The base module has various external connectors on its front and rear panel:
SMA for RF signals, BNC for analog and digital trigger control, D-Sub
9 for digital
trigger control and LAN for Ethernet access. The details of these connections are
described in
.
Observe maximum input power and no DC voltage
All front connectors and some rear connectors have the following limita-
tions:
●
A maximum tolerable input power level (dBm)
●
No tolerance for a direct current (DC) voltage share in the input signal
If the input signals exceed these limits, the internal circuits of the module
can be damaged.
Do not exceed the dBm levels and "0 VDC" limits that are indicated on the
front and rear panels.
Connecting Devices to the Base Module