Westermo TD-23 Manual de Instalação Página 9

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96178-2203
Termination
2-wire
TD-32/485 (RS-422/485 interface)
As an option the TD-32 can be supplied with an RS-422/485
interface. This product is referred to as the TD-32/485.
On the TD-32/485 the RS-232/V.24 connection on the screw
terminal on upper front side of the unit has been replaced with
an RS-422/485 interface. All other features remain identical
between the standard TD-32 and TD-32/485. The TD-32/485
can still be connected to an RS-232/V.24 port using the 25-pole
D-sub. Please note that there is no galvanic isolation between
the RS-232 and the RS-422/485 ports so they should not be
connected simultaneously.
The RS-422/485 connections are made as shown below.
Please note that the selection of 2 or 4 wire and termination or
no termination is done by linking between some of the screw
terminals.
R+
RS 422/485
R-T+T-GND
PWR
TD
RD
RTS
DCD
LINE
ANS
REL
T4T2
V24/RS232-C
WIRE
2/4S1
1234567
8
9
TD-32/485
R+
RS 422/485
R-T+T-GND
PWR
TD
RD
RTS
DCD
LINE
ANS
T4T2
V24/RS232-C
WIRE
2/4S1
1234567
8
9
R+
RS 422/485
R-T+T-GND
PWR
TD
RD
RTS
DCD
LINE
ANS
T4T2
V24/RS232-C
WIRE
2/4S1
1234567
8
9
Termination
4-wire
4-wire
R+
RS 422/485
R-T+T-GND
PWR
TD
RD
RTS
DCD
LINE
ANS
T4T2
V24/RS232-C
WIRE
2/4S1
1234567
8
9
Connection
RS-485
R+
RS 422/485
R-T+T-GND
PWR
TD
RD
RTS
DCD
LINE
ANS
T4T2
V24/RS232-C
WIRE
2/4S1
1234567
8
9
Connection
RS-422
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