Modules
R&S
®
OSP
99
User Manual 1178.7100.02 ─ 05
3.26
R&S
OSP-B116 RF Switch Module
Figure 3-65: R&S
OSP-B116
The one-slot
OSP-B116 (order no. 1515.5827.02) has two failsafe elec-
tromechanical DPDT relays (K11 and K12), frequency range DC to 18
GHz, with non-
terminated SMA (female) connectors.
Note:
56 N
·
cm
for
SMA
connectors.
The relays operate independently from each other.
The type of relays is monostable (or "failsafe"), hence, with no voltage applied to a
relay, its RF connections automatically go to the "not activated" state, as described
below:
●
When a DPDT relay is
not activated
(no voltage applied to the relay) and after a
reset, the terminals
1 + 2
and
3 + 4
are connected. The user interface (control
screen / "WebGUI") labels this state as "Pos = 0".
In the remote control command
, this deactivated state of the relay
is represented by "
00
".
●
When the relay is
activated
(continuous voltage applied to the relay), the terminals
1 + 3
and
2 + 4
are connected. The user interface (control screen / "WebGUI")
labels this state as "Pos = 1".
In the remote control command
, this activated state of the relay is
represented by "
01
".
The relays are mounted directly into the module's panel and soldered to the module's
printed board, to avoid relay cabling and allow a compact module size.
The switch unit provides power supply and control via a single module bus cable to a
module bus connector on the module's printed board. The module's on-board memory
stores its configuration data.
R&S
OSP-B116 RF Switch Module