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Connections to Serial Communications Option Boards Appendix F
Programmable Terminal (PT) Connections
Direct Connections from RS-232C to RS-232C Ports
• Communications Mode: Host Link (unit number 0 only for Host Link)
NT Link (1:N, N = 1 Unit only)
• OMRON Cables with Connectors:
XW2Z-200T-1: 2 m
XW2Z-500T-1: 5 m
1:1 Connections from RS-422A/485 to RS-422A/485 Ports
• Communications Mode: Host Link (unit number 0 only for Host Link)
NT Link (1:N, N = 1 Unit only)
5-V (+)
power (-)
D-sub, 9-pin
connector (male)
NT-AL001 Link Adapter
Shield
RS-232C
Interface
DIP Switch Settings
Pin 1: ON
Pin 2: ON
(terminating resistance)
Pin 3: OFF
Pin 4: OFF
Pin 5: OFF
Pin 6: OFF
CPU Unit
Computer
Terminal block
Pin
Signal
Signal
Pin
Signal
Pin
Signal
Shield
D-sub, 9-pin
connector (male)
4-wire
Terminating resistance OFF
4-wire
Terminatin