NEC MultiSync P401 - Pin Assignments for Control Interfaces; RS-232 C Pinout

English-40
1) RS-232C input/output
Pin No Name
1 connected to 7&8
2 RXD
3 TXD
4 connected to 6
5 GND
6 connected to 4
7 connected to 1&8
8 connected to 1&7
9NC
1
6
5
9
D-SUB 9P
This LCD monitor uses RXD, TXD and GND lines for RS-232C control.
2) REMOTE IN
Pin Assignment
3) REMOTE OUT