Omron Programmable Terminals NT631C - Manual (Page 268)

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Specifications Appendix A
For a Host Link, RS-422A
For an NT Link, 1:1, RS-232C
* 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
For an NT Link, 1:N, RS-232C
* To connect two or more PTs, NT-AL001 Adapters are required. When using an NT-AL001, the specifications
are as follows.
• RS-232C cable: Max. 2 m
• RS-422A/485 cable: Total length 500 m max.
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)
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 *
Item Specification
Communications standard EIA RS-422A
Connector Terminal block (serial port B)
Number of Units connected 1:1
Transmission distance Max. 500 m
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 *