Computer Accessories User Manual

Mainboard KI51PV-754

Serial Interface Header: COM1/COM2

This mainboard provides two COM headers for you to connect external serial connectors on the

back panel of your case. Attaching the serial connector cables (Optional) onto these two

headers, then you can use the serial connectors to attach with a mic, modem or other peripheral

devices.

Pin Assignment Pin Assignment

1 RIN1 2 RIN3

3 DOUT2 4 DOUT3

5 Ground 6 RIN2

7 DOUT1 8 RIN4

COM1/2

9 -XRI1 10 N/A

Printer Interface Header: PRT

This mainboard provides a PRT header for you connecting an external printer connector on the

back panel of your case. Attaching the printer connector cable (Optional) onto this header, then

you can use this printer connector to attach with a printer.

Pin Assignment Pin Assignment

1 RSTB- 2 RPDR0

3 RPDR1 4 RPDR2

5 RPDR3 6 RPDR4

7 RPDR5 8 RPDR6

9 RPDR7 10 ACK-

11 BUSY 12 PE

13 SLCT 14 RAFD-

15 ERR- 16 RINIT_P-

17 RSLIN- 18 Ground

19 Ground 20 Ground

21 Ground 22 Ground

23 Ground 24 Ground

PRT

25 Ground 26 Key