Omron NT631 For a Host Link, RS-422A, For an NT Link, 11, RS-232C, For an NT Link, 11, RS-422A

SpecificationsAppendix A

For a Host Link, RS-422A

Item		Specification
Communications standard	EIA RS-422A
Communications settings	Start-stop synchronization
	Communications speed: 9600, 19200 bps
	Data length:	7 bits
	Stop bit:	2 bits
	Parity:	Even
Connector	Terminal Block (serial port B)
Number of Units connected	1:1
Transmission distance	Max. 500 m
Communications protocol	C-series SYSWAY (1:N)

For an NT Link, 1:1, RS-232C

Item	Specification
Communications standard	EIA RS-232C
Connector	9-pin D-SUB connector (female) (serial port A, B)
Number of Units connected	1:1
Transmission distance	Max. 15 m*

* When using an NT-AL001, the specifications are as follows.

• RS-232C cable:	Max. 2 m
• RS-422A cable:	Total length 500 m max.

For an NT Link, 1:1, RS-422A

Item	Specification
Communications standard	EIA RS-422A
Connector	Terminal block (serial port B)
Number of Units connected	1:1
Transmission distance	Max. 500 m

For an NT Link, 1:N, RS-232C

Item	Specification
Communications standard	EIA RS-232C
Connector	9-pin D-SUB connector (female) (serial port A, B)
Number of Units connected	1:1 to 8
Transmission distance	Max. 15 m*

*To connect two or more PTs, NT-AL001 Adapters are required. When using an NT-AL001, the specifications are as follows.

•RS-232C cable:

•RS-422A/485 cable:

Max. 2 m

Total length 500 m max.

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