Owner manual

1-22
Chapter 1: Product introduction
A78M-A
A78M-A Serial port connectors
PIN 1
COM
DCD
TXD
GND
RTS
RI
RXD
DTR
DSR
CTS
10. Serial port connector (10-1 pin COM)
This connector is for a serial (COM) port. Connect the serial port module cable to this
connector, then install the module to a slot opening at the back of the system chassis.
The COM module is purchased separately.