Serial Port Header - ASROCK H61M-DG4 User Manual

Print Port Header
(25-pin LPT1)
(see p.13 No. 18)

Serial port Header

(9-pin COM1)
(see p.13 No. 16)
SPD1
SPD2
SLCT
SPD3
PE
SPD4
BUSY
SPD5
ACK#
SPD6
SPD7
SLIN#
GND
PINIT#
26
This is an interface for print
STB#
SPD0
port cable that allows
convenient connection of printer
devices.
1
ERROR#
AFD#
This COM1 header supports a
serial port module.