Y1172A Datasheet, PDF (3/19 Pages) Keysight Technologies – RF Switch Platform

03 | Keysight | L4490A/91A RF Switch Platform – Data Sheet
Two Platforms with Ample Space to Mount Switches and Other Components
2U and 4U high versions of the switch
platform are available to give you flexibility
for your unique needs and expandability
for future projects. Both platforms come
standard with 64 coil drives integrated into
the enclose with options for expansion.
The 2U version uses a bottom mounting
tray with pre-drilled holes for mounting up
to 8 multiport switches or a combination of
devices using optional bracket kits. See
Figure 1.
The 4U version has a unique switch
mounting system with a robust design
ensuring that all components are securely
mounted, giving you confidence in a highly
accurate and repeatable RF connection.
The 4U switch mounting system comes
standard with a tray for vertically mount-
ing switches and attenuators using op-
tional bracket kits. All devices are securely
mounted with the RF connectors on top,
giving you a compact, flexible solution to
meet your custom needs.
The switch mounting tray has plenty
of space for mounting and controlling
up to 48 SPDT switches or 16 multiport
switches, or a combination of these and
other devices. Note that some complex
switch configurations require more than
the supplied 600 mA quiescent current.
See quiescent current calculations in the
specifications section for more informa-
tion. Another mounting tray at the rear of
the instrument provides space for mount-
ing additional components. There is also
an optional front panel with locations for
mounting up to 8 mulitport switches. See
Figure 2.
The 4U unit also has a location on the rear
panel to mount a user-provided fan for
when cooling is required.
The design also provides easy access
for building, customizing and servic-
ing the unit. You can easily remove the
top, bottom, front and rear panels for
quick access. The front and rear panels
can be customized for your unique
needs. You can drill or punch holes for
mounting RF connectors, LEDs and
other signal routing components. See
Figure 3.
Cables and connectors can be
ordered through Keysight or third party
suppliers listed later in this document
under ordering information.