12
Hardware
Feature
|
The
DB9
is
standard
serials
port
connector.
The
following
tables
show
the
signal
connections
of
these
connectors.
Pin
No# RS
‐
232
RS
‐
422
RS
‐
485
1
DCD
2
RxD
RxD
‐
(A)
Data
‐
(A)
3
TxD
RxD+(B) Data+(B)
4
DTR
5
GND
6
DSR
7
RTS
TxD
‐
(A)
8
CTS
TxD+(B)
9
RI
One
of
the
JetBox
COM
port
is
designed
for
multiple
proposes.
Use
JP1
selects
the
RS
‐
232,
RS
‐
422
or
RS
‐
485.
The
default
setting
is
RS
‐
232.
