RS-232 | RS-422 | RS-485 | ||
---|---|---|---|---|
PIN | COM | COM | COM | |
1 | DCD1# | 422 TX - | 485 - | |
2 | SIN1 | 422 TX + | 485 + | |
3 | SOUT1 | 422 RX - | ||
4 | DTR1 | 422 RX + | ||
5 | GND | |||
6 | DSR1# | |||
7 | RTS1 | |||
8 | CTS1# | |||
9 | RI1# |
According to Intel specifications recommendations when connecting three screens, there must be one you want to use Display port, the other two are no limited. If the screen is no Display port in, you can choose to use “Active” DP to HDMI or “Active” DP to DVI adapter for connection.