ASRock AD2550-ITX manual Serial port module

Print Port Header	AFD#
(25-pin LPT1)	ERROR#	GND
	PINIT#
	SLIN#
(see p.11 No. 1)
	1
		SPD7
	SPD6 ACK#
	SPD5	BUSY
	SPD4	PE
	SPD3	SLCT
	SPD2
	SPD1
	SPD0
	STB#

This is an interface for print port cable that allows convenient connection of printer devices.

Serial port Header	This COM1 header supports a
(9-pin COM1)	serial port module.
(see p.11 No. 2)

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