7. ADJUSTING AND TESTING THE TERMINAL
The LCD’s screen contrast can be adjusted (see below).
It must be noted that the RS232 serial link can be tested with two test DIP switches (see below).
T
w
o r
ed R
S
23
2 t
es
t
D
IP
s
w
itc
hes
S
tan
dar
d
op
er
at
ion
pos
iti
on:
T
es
t pos
iti
on
:
A
dj
us
tin
g t
h
e LC
D
di
s
pl
ay
c
ont
ras
t
R
es
et
p
us
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b
ut
to
n
(r
ed)
