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Appendix ASpecifications
252
For an NT Link , 1:1, RS-422A Type
Item Specification
Communications standard EIA RS-422A
Connector 25-pin D-SUB connector (female) (serial port B)
Number of units connected 1:1
Transmission distance Max. 500 m
For an NT Link , 1:N, RS-232C Type
Item Specification
Communications standard EIA RS-232C
Connector
9-pin D-SUB connector (female) (serial port A)
25-pin D-SUB connector (female) (serial port B)
Number of units connected 1:1 to 8
Transmission distance Max. 15 m
*
* To connect two or more PTs, NT-AL001 units 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.
For an NT Link , 1:N, RS-422A/485 Type
Item Specification
Communications standard EIA RS-422A/485
Connector 25-pin D-SUB connector (female) (serial port B)
Number of units connected 1:1 to 8
Transmission distance Max. 500 m
For a High-speed NT Link , 1:N, RS-232C Type
Item Specification
Communications standard EIA RS-232C
Connector
9-pin D-SUB connector (female) (serial port A)
25-pin D-SUB connector (female) (serial port B)
Number of units connected 1:1 to 8
Transmission distance Max. 15 m
*
* To connect two or more PTs, NT-AL001 units 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.
For a High-speed NT Link , 1:N, RS-422A/485 Type
Item Specification
Communications standard EIA RS-422A/485
Connector 25-pin D-SUB connector (female) (serial port B)
Number of units connected 1:1 to 8
Transmission distance Max. 500 m