NAR-5620 Series
User
’
s
Manual
41
5
V
SS
Ground
6
NC
No connector
7
NC
No connector
8
NC
No connector
9
NC
No connector
9
NC
No connector
(2) Power
PIN NO.
PIN OUT
Description
1
NC
No connector
2
GND
Power GND
3
GND
Power GND
4
+5V
Power VCC (+5V)
4.3.7
Hardware installation
The installation steps are:
Connect the power connector to the power connector of this module.
Connect the straight-through cable between Serial Port of this module and computer
4.3.8
EZIO3 Function Command
First, all versions (00A, 01A, 02A) of EZIO can use those commands. Only the 02A version of EZIO
firmware that adds
“
FE
28”
&
“
FE
37”
command
can
cont
r
ol
st
ar
t
of
HEX
&
End
of
HEX.
EZIO is an intelligent device, which will display those data received from RS-232 port and reply key
pressing status to polling command from RS-232 port. Both commands and data go thru RS-232
ports. To distinguish between data and commands, the LCD/key-pad module recognizes a command
pr
ef
i
x,
254
(
Hex
0FE)
.
The
byt
e
f
ol
l
owi
ng
“
254”
wi
l
l
be
pr
ocessed
as
a
command.
For
exampl
e,
t
o
clear the screen, send the command prefix (254) followed by the LCD clear-screen code (1). The valid
data range is shown as the following table:
Valid data range
Displayed characters
0-7
Customized icon 0-7
48-57 (30-39 Hex)
0-9
65-90 (41-5A Hex)
A-Z
97-122 (61-7A Hex)
a-z
To
get
t
he
key
pr
essi
ng
st
at
us,
a
“
r
ead
key”
command
can
be
i
ssued
t
o
t
hi
s
modul
e,
whi
ch
wi
l
l
check the key-pressing status and reply accordingly. The following are the commands and
corresponding Decimal/Hex values:
