Asus P5QL Manual page 49

11. Serial port connectors (10-1 pin COM1)
The connector is for a serial (COM) port. Connect the serial port module
cable to the connector, then install the module to a slot opening at the back of
the system chassis.
The serial port bracket (COM1) is purchased separately.
P5QL-EM COM Port Connector
12. LPT connector (26-1 pin LPT)
The LPT (Line Printing Terminal) connector supports devices such as a
printer. LPT standardizes as IEEE 1394, which is the parallel port interface on
IBM PC-compatible computers.
P5QL-EM Parallel Port Connector
ASUS P5QL-EM
COM1
LPT
1
STB#
AFD
PD0 ERR#
PD1
PD2 SLIN#
PD3 GND
PD4 GND
GND
PD5
GND
PD6
PD7 GND
GND
ACK#
BUSY GND
PE
GND
SLCT
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