Omron CQM1H-SCB41 Operation Manual page 90

Connections
1:N Connections Using RS422A/485 Ports
Serial Communications Board
Signal Pin
RS-422A/
485 inter-
face
Hood
D-sub, 9-pin
connector (male)
Terminating resistance ON
4-wire
Serial Communications Board
Pin
Signal
RS-422A/
485 Inter-
face
Hood
D-sub, 9-pin
connector (male)
Terminating resistance ON
4-wire
Serial Communications Board
Signal Pin
RS-422A/
485 Inter-
face
Hood
D-sub, 9-pin con-
nector (male)
Terminating resistance ON
4-wire
DIP Switch
Pin 1: ON
Pin 2: ON (terminating
resistance)
Pin 3: OFF
Pin 4: OFF
Pin 5: OFF
Pin 6: ON
Device supporting RS-422A/485
communications (2-wire)
Signal
RS-422A/
485 inter-
face
Device supporting
RS-422A/485
communications
(2-wire)
Signal RS-422A/
485 inter-
face
3G2A9-AL001
Pin
Signal
Signal Pin
RS-422A/
485 inter-
face
Signal
Pin
Shield
NT-AL001-E Link Adapter
Signal Signal
Pin
NC
SD
RD
RTS
CTS
5V
DSR
DTR
Shield
SG
DIP Switch D-sub, 9-pin con-
Pin 2: OFF, nector (male)
otherwise
same as below.
NT-AL001-E Link Adapter
Pin Signal Signal
NC
SD
RD
RTS
CTS
5V
DSR
DTR
Shield
SG
D-sub, 9-pin
Terminal block
connector
(male)
Section 5-4
Device supporting
RS-422A/485
communications
Shield (4-wire)
Signal
RS-422A/
485 inter-
face
D-sub, 9-pin
connector (male)
Device supporting
RS-422A/485
communications
(4-wire)
Signal
RS-422A/
485 inter-
face
Shield
Signal
Pin
FG
SD
RD
RS-232C
Interface
RTS
CTS
DSR
DTR
SG
(+) 5-V
( ) power
Shield
Signal
Pin
FG
SD
RD
RS-232C
RTS
Interface
CTS
DSR
DTR
SG
(+) 5-V
( ) power
75