NuPower
Xtender™
12B04A
‐
D27
User
Manual
Rev
1.0
11
5.1.3
T/R Source or Sink
The
“TRMODE
x
”
command
is
used
to
configure
the
mode
of
the
T/R
Source
or
Sink
I/O
line,
where
“
x
”
is
either
0
or
1.
The
T/R
Source
or
Sink
settings
are
defined
as:
0
=
Source
Mode.
In
Source
Mode,
the
T/R
Source
or
Sink
line
functions
as
an
output.
While
in
Source
Mode,
an
auto
‐
sense
circuit
controls
the
T/R
switching.
When
the
Xtender
is
in
transmit
mode,
a
logic
high
signal
will
be
output
on
this
line.
Conversely,
when
the
Xtender
is
in
receive
mode,
a
logic
low
signal
will
be
output
on
this
line.
1
=
Sink
Mode.
In
Sink
Mode,
the
T/R
Source
or
Sink
line
functions
as
an
input,
and
the
T/R
switching
is
controlled
by
applying
a
logic
high
or
logic
low
to
this
line.
Applying
a
logic
high
signal
to
this
line
enables
transmit
mode,
while
applying
a
logic
low
enables
receive
mode.
Note:
Factory
default
setting
is
0
(Source
Mode)
The
“TRVOLT
x
”
command
is
used
to
configure
the
input
and
output
logic
levels,
where
“
x
”
is
either
0
or
1.
The
T/R
Logic
Level
settings
are
defined
as:
0
=
3.3
VDC
Logic
1
=
5
VDC
Logic
Note:
Factory
default
setting
is
0
(3.3
VDC
Logic).
5.1.4
Unit Status Command
The
“STAT?”
command
is
used
to
display
the
system
status.
Information
displayed
in
the
system
status
is
defined
as:
Model
and
Firmware
Version
Serial
Number
Input
Attenuator
Value
(n/a
for
this
product
model)
Feedback
Attenuator
Value
(n/a
for
this
product
model)
Transmit
Threshold
Control
Value
Pre
‐
amplifier
Control
Value
(n/a
for
this
product
model)
T/R
Source
or
Sink
Mode
Value
and
Logic
Level
