Page 4 of 39
Rev. 13
1.2 RS-232 CONNECTION
The RS-232 standard allows only a single point-to-point connection. The cable needed for the RS-232 communication is
a standard one with DB9 male and female connectors. The DB9 male is connected at the
PCOM
side and the DB9
female is connected at the customer DTE
.
The cable can be 15.2m (50 ft) long maximum. To connect to the RS232 via
(DB9), the switch SW7 must be set to (off/off/off) as shown below.
232
RS
7
SW
DTE
232
RS
PCOM
TXD
RXD
TXD
RXD
)
(
GS
ground
Signal
RTS
CTS
RTS
CTS
1
ground
2
ground
connection
cable
RS
Figure
232
:
2
PCOM_TXD
PCOM_RXD
Ground 2
J14
DB9 Female connector
5
9
4
8
3
7
2
6
1
1.3 RS-485 CONNECTION
To connect to the RS485 port, the switch SW7, must be set to (on/on/on) as shown below
on
1
485
RS
7
SW
Figure 3, provides the wiring connection to the RS485.
GS
)
(
B
TD
)
(
A
TD
)
(
B
RD
)
(
A
RD
1
2
3
4
5
485
RS
15
J
HEADER
5: GS
4: TD (B)
3: TD (A)
2: RD (B)
1: RD (A)
Figure3: Connector RS485
Содержание ARR-M Series
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