Robustel
GoRugged
R3000
‐
3P
‐
GPS
User
Guide
RT_UG_R3000_v.2.0.3
10.12.2014
107
/
129
4.1.2
Digital
Input
4.1.3
Digital
Output
There
are
two
digital
inputs
of
R3000,
it
just
support
dry
contact
(do
not
supports
wet
contact).
Please
check
the
connector
interface
of
R3000,
you
can
find
out
“
V
‐
”
easily
at
one
of
the
pin
of
power
input
connector.
Import
note:
do
not
connect
In1/In2
and
Slide
switch
directly
to
“
GND
”
of
the
terminal
block,
or
DI
will
not
work.
There
are
two
digital
outputs
of
R3000.
Power
negative
of
DC
should
connect
to
“GND”
Please
refer
to
connection
diagram
at
the
right
site.
Maximum
voltage/current/output
power
of
DO
is
30VDC/0.3A/0.3W.
It
means
voltage
difference
between
Out1/Out2
and
GND
cannot
exceed
to
30VDC;
the
current
value
through
Out1/Out2
cannot
exceed
to
300mA.
And
the
output
power
dissipated
by
Out1/Out2
cannot
exceed
to
0.3W.
Otherwise
DO
will
be
damaged.
External
Load
External
Power
Supply
Power
Negative
