Omron NT20S Operation Manual page 74

Connection to a PC by the NT Link (1:N)
NT-AL001 Converter Unit DIP Switch Settings
RS-232C cable
(max. 2 m)
RS-232C/RS-422A
converter unit,
type NT-AL001
(End connection)
RS-232C cable
(max. 2 m)
RS-232C/RS-422A
converter unit,
type NT-AL001
(End connection)
The DIP switch settings to be made at an NT-AL001 used in the wiring depend on
whether it is connected part way along the RS-422A/485 cable or is at the end of
the RS-422A/485 cable.
S RS-422A connection, RS-232C at the PC side
C200HX/HG/HE
RS-232C/RS-422A
converter unit,
type NT-AL001
RS-422A

cable ( )
RS-232C cable
(max. 2 m)
NT20S
S RS-485 connection, RS-232C at the PC side
C200HX/HG/HE
RS-232C/RS-422A
converter unit,
type NT-AL001

RS-485 cable ( )
RS-232C cable
(max. 2 m)
NT20S
RS-232C/RS-422A
converter unit,
type NT-AL001
RS-422A

cable (
RS-232C cable RS-232C cable
(max. 2 m) (max. 2 m)
NT20S
RS-232C/RS-422A
converter unit,
type NT-AL001
RS-485 cable (
RS-232C cable RS-232C cable
(max. 2 m) (max. 2 m)
NT20S
(End connection)
RS-232C/RS-422A
converter unit,
type NT-AL001
)

( ) Total cable length: 500 m
NT20S
(End connection)
RS-232C/RS-422A
converter unit,
type NT-AL001

)

( ) Total cable length: 500m
NT20S
Section 2-6
55