9
Terminal Connections
Only one of the serial connectors can be used at a time.
*
5620.0
*
5620.0
*
5620.0
A
B
A
B
A
B
Terminal resistor (110 ohm) in
last unit (Jumper J2 on)
Sending
PC or PLC
RS-485
Address 2
Address 1
Address 0
Twisted, shielded cable
Power supply
85..240 VAC (grey 7 and 8)
or 24VDC (Green 7 and 9 no
polarity)
Card slots B and C are for optional cards
6
5
4
3
2
1
6
5
4
3
2
1
7 8 9
Card slot A
Card slot B
Card slot C
Input
A
B
6
5
4
3
2
1
TxD
Com
RxD
RS-485
RS-232
Serial signal RS-485 loop last unit must be terminated with 110 ohm
resistor. Termination can be done on terminal connections or by
connecting short cut jumper into following position.
Fail-safe ON
Terminator ON
Fail-safe OFF
Terminator OFF
Use for other cases
and for RS-232
Use for the last
device in the bus
2071-RS v2.0
Factory setting
2071 RS card version 1.0 jumper selection
RxD
TxD
Com
1
3
2
6
7
8
9
5
X-2071
2071 - PC
RS-232
serial connection
Connector A
PC
9-pin
conn.
(Terminal unit)
2081-RS v1.0
Fail-safe ON
Terminator ON
Fail-safe OFF
Terminator OFF
Use for other cases
and for RS-232
Use for the last
device in the bus
Factory setting
2071 RS card version 2.0 jumper selection
4
3
2
1
