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5-4SectionUsing Protocol Macros
72
Connecting a Host Computer with NT-AL001-E Converting Link Adapters
5-V (+)
power (–)
NT-AL001-E Link Adapter
RS-232C
Interface
RS-232C
Interface
Signal
Pin
DIP Switch Settings
Pin 1: ON
Pin 2: ON
(terminating resistance)
Pin 3: OFF (4-wire)
Pin 4: OFF
Pin 5: OFF
Pin 6: OFF
NT-AL001-E Link Adapter
RS-232C
PinPinPin
Signal
SignalSignal Signal
Serial Communications
Board
Computer
RS-422A
(See note)
D-sub, 9-pin
connector (male)
DIP Switch Settings
Pin 1: ON
Pin 2: ON
(terminating resistance)
Pin 3: OFF (4-wire)
Pin 4: OFF
Pin 5: OFF
Pin 6: ON
D-sub, 9-pin
connector (male)
Terminal block
Shield
RS-232C
Signal Pin
FG
SD
RD
RTS
CTS
DSR
DTR
SG
FG
SD
RD
RTS
CTS
5V
DSR
DTR
SG
NC
SD
RD
RTS
CTS
5V
DSR
DTR
SG
NC
SD
RD
RTS
CTS
5V
DSR
DTR
SG
D-sub, 9-pin
connector (female)
D-sub, 9-pin
connector (male)
Terminal block
Note We recommend using the following NT-AL001-E Link Adapter Connecting
Cables to connect to NT-AL001-E Link Adapters.
XW2Z-070T-1: 0.7 m
XW2Z-200T-1: 2 m
Connections to a Modem
Modem
Serial Communica-
tions Board
RS-232C port
FG
SD
RD
RTS
CTS
5V
DSR
DTR
SG
FG
SD
RD
RTS
CTS
DSR
SG
CD
ST2
RT
DTR
CI
ST1
D-sub, 9-pin
connector (male)
D-sub, 25-pin
connector