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Specifications Appendix A
Panel Specifications
External Interface Specifications
* Serial port B is used for either a connector or terminal block.
Note Check that the current capacity of the equipment to be supplied is within 250 mA before using the +5 V
output of pin No. 6.
The +5 V output of the Unit delivers +5 V
± 5% and 250 mA maximum.
Item Specification
Touch panel Type: Resistive type
Number of switches: 768 (32 horizontally × 24 vertically)
Maximum number that can be registered on one screen: 256
Cell size: NT631-ST211@-EV2 5.9 × 5.9 mm
NT631-ST141@-EV2 6.5 × 6.5 mm
NT631-ST153@-EV3 5.9 × 5.9 mm
Input: Pressure-sensitive type
Operating force: 1 N minimum
Life expectancy: One million operations minimum
Item Specification
Serial communications Serial port A Conforms to EIA RS-232C.
D-SUB 9-pin connector (female)
+5 V (250 mA max.) output at pin No. 6
Serial port B connec-
tor*
EIA RS-232C (Serial port B terminal block selectable by memory switch
setting)
D-SUB 9-pin connector (female)
Serial port B terminal
block*
EIA RS-422A/485 (Serial port B connector selectable by memory switch
setting)
Terminal block
Parallel interface Conforms to Centronics standard, 20-pin half pitch connector
Expansion interface Dedicated connector