Specifications
Table Of Contents
- Notices
- Safety information
- About this guide
- M5A78L-M Series specifications summary
- Chapter 1: Product introduction
- Chapter 2: BIOS information

4. LPT connector (26-1 pin LPT)
The LPT (Line Printing Terminal) connector supports devices such as a printer. LPT
standardizes as IEEE 1284, which is the parallel port interface on IBM PC-compatible
computers.
3. Serial port connector (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 is purchased separately.
M5A78L-M LE
M5A78L-M LE Serial port (COM1) connector
PIN 1
COM1
M5A78L-M LE
M5A78L-M LE LPT connector
PIN 1
LPT
STB#
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
ACK#
BUSY
PE
SLCT
AFD
ERR#
INIT#
SLIN#
GND
GND
GND
GND
GND
GND
GND
GND
ASUS M5A78L-M Series 1-23