Omron CJ2 CPU UNIT - RS-422 A;485 Ports with 1:1 Connection

Appendices
A-120
CJ2 CPU Unit Hardware User’s Manual
z RS-422A/485 Ports with 1:1 Connection
FG
SD
RD
RS
CS
DR
ER
SG
1
2
3
4
5
6
7
8
9
NC
SD
RD
RS
CS
5V
DR
ER
SG
1
2
3
4
5
6
7
8
RS-422RS-232
GRD
SG
SDB
SDA
RDB
RDA
CSB
CSA
3
4
1
2
5
SDA
SDB
RDA
RDB
FG
Shield
CPU Unit
Personal Computer
Signal
name
Signal
name
Signal
name
Signal
name
RS-232C
Interface
NT-AL001 Link Adapter
D-sub, 9-pin
connector (male)
DIP Switch Settings
Pin 1: ON
Pin 2: ON
(terminating resistance)
Pin 3: OFF
Pin 4: OFF
Pin 5: OFF
Pin 6: OFF
Pin
No.
Pin
No.
Pin
No.
Terminal block
5-V
power
(+)
(–)
RS-
422A/485
Option
Board
4-wire
Terminating resistance: ON