Black Box PC118C-R2 manual Appendix C Parallel-Port Pinouts

APPENDIX C: Parallel-Port Pinouts

Table C-1. Parallel-Interface Specifications.

			Parallel
Signal	Return		Cable
Pin	Pin	Signal	Pin	Direction	Description
1	19	STROBE	1	IN	Strobe pulse to read
					data in. Pulse width
					must be more than
					0.5 µsec. at the Card.
2	20	DATA1	2	IN	These signals
3	21	DATA2	3	IN	represent infor-
4	22	DATA3	4	IN	mation in bits 1-8 of
5	23	DATA4	5	IN	parallel data. Each
6	24	DATA5	6	IN	signal is HIGH when
7	25	DATA6	7	IN	data is logical 1 and
8	26	DATA7	8	IN	LOW when it is
9	27	DATA8	9	IN	logical 0.
10	28	ACKNLG	10	OUT	A LOW pulse of
					minimum width of
					4 µsec. A LOW
					indicates that data
					has been received
					and that the printer
					is ready to accept
					more data.
11	29	BUSY	11	OUT	A HIGH signal
					indicates that the
					printer cannot
					receive data. The
					signal goes HIGH
					when it is off line; or
					in the error state,
					when serving the
					IBM host and a byte
					of parallel data is
					received; or during
					data entry.
12	30	PE	12	OUT	HIGH when printer
					is out of paper.
13	—	SLCT	13	OUT	HIGH when the
					printer is ready.

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