NEC PE455UL - Page 158

9. Appendix
138
USB Port (Type A)
1
3
2
4
Pin No. Signal
1 V
BUS
2 D−
3 D+
4 Grounding
PC CONTROL Port (D-Sub 9 Pin)
12345
6789
Pin No. Signal
1 Unused
2 RxD reception data
3 TxD transmission data
4 Unused
5 Grounding
6 Unused
7 RTS transmission request
8 CTS transmission allowed
9 Unused