Mainboard KM51PV-754
Serial Interface Header: CONN_COM1
This mainboard provides a CONN_COM1 header for you connecting an external serial
connector on your case back panel. Attach the serial connector cable (Optional) onto this
header, then you can use this serial connector to attach with a mic, modem or other peripheral
device.
Pin
Assignment
Pin
Assignment
1 +12V
2 +5V
3 -12V
4 Key
5 DCD0-
6 SIN0
7 SOUT0
8 DTR0-
9 Ground
10 DSR0-
11 RTS0-
12 CTS0-
CONN_COM1
13 RI0-
14 RI-
Printer Interface Header: PRT
This mainboard provides a PRT header for you connecting an external printer connector on
your case back panel. Attach 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
13