Star Micronics SJ-48 manual Pinout of Interface Connector, Busy

PINOUT OF INTERFACE CONNECTOR

The following describes the pinout of the interface connector (signals which are low when active are overlined).

	Pin		Name		Function
	1		STROBE		Goes from high to low (for 20.5 us) when active
I	2	I	DATAO	I	High when active
I	3	I	DATA1	I	Highwhen active
	4		DATA2		High when active
	5		DATA3		High when active
	6		DATA4		High when active
I	7	I	DATA5	I	Highwhenactive
I	8	I	DATA6	I	High when active

I

I

I

I

9	DATA7	High when active
10	ACK	4 ps low pulse acknowledgesreceiptof data
11	BUSY	Low when minterreadyto receive data

I	12	I	PAPER
I	13	I	SELECT
	14, 1.5		N/C

16SIGNAL GND

17CHASSIS

18N/C

19-30 GND

31RESET

32ERROR

33EXT GND

		I
	34		N/C
I	35	I	+5V
I	36	I	N/C

I High whenpaperout.

IHigh when printer is on-line

Signal ground

Chassis ground (isolated from signal ground)

Twisted pair ground return

When this input signal is low, printer is reset

Outputs low when printer cannot continue, due to an error

External mound

I

I+5V DC output from printer

I

I I

I

I I

96