Klark Teknik HELIX SYSTEM DN9340, Operator'S Manual, Page: 47 / 62

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Identification of controls:
DN9344
PC
port
connector
.
Use
with
the
supplied
cable
to
install
software
updates
or
to
control
the
unit
from
an
external
computer
.
This
connector
is
entirely
separate
from
the
rear
panel
RS-485
connectors,
and
can
be
used
at
the
same
time
as
the
rear
panel
ports.
Communications
traf
fic
indicators.
These
indicate
when
there
is
activity
on
any
of
the
external
interfaces.
T
ransmit
and
receive
data
are
shown
for
front
panel
(RS-232)
and
rear
panel
(RS-485)
data,
and
also
the
contact
closure
(RELA
Y)
input.
Scribble-strip
areas
to
allow
easy
labelling
of
the
unit.
Use
only
chinagraph
pencils
to
avoid
permanently
marking
the
unit.
Remove
chinagraph
markings
by
wiping
with
a
soft
cloth.
Do
not
use
solvents
as
these
may
damage
the
surface.
UP
and
DOWN
keys
for
Section
1.
Used
to
select
communications
channel
(address)
for
remote
control
and
also
c
ontact
closure
mode.
Active
only
when
in
SETUP
menu
(press
and
hold
SETUP
to
enter
this
menu).
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