Star Micronics SP312F, SP342F-A manual Connectors and Signals Parallel Interface

Connectors and Signals (Parallel Interface)

	Pin No.	Signal	IN/OUT	Function
		Name
	1		IN	Signals when data is ready to be read. Signal goes
		STROBE
				from HIGH to LOW (for at least 0.5 microsec.)
				when the data is available.
	2-9	DATA1-8	IN	These signals provide the information of the first
				to eighth bits of parallel data. Each signal is at
				HIGH level for a logical 1 and at a LOW level for
				a logical 0.
	10		OUT	A 9 microsecond LOW pulse acknowledges re-
		ACK
				ceipt of the data.
	11	BUSY	OUT	When this signal goes to LOW, the printer is
				ready to accept data. When the printer is in one of
				the conditions below, “HIGH” is set.
				1. Data is being entered.
				2. Off line.
				3. Error condition.
	12	PAPER	OUT	This signal is normally LOW. It will go to HIGH
		OUT		if the printer runs out of paper.
	13	SELECTED	OUT	This signal is HIGH when the printer is online.
	14-15	N/C		Unused
	16	SIGNAL		Signal ground.
APPENDIX		GND
	17	CHASSIS		Chassis ground, isolated from logic ground.
		GND
	18	+5VDC		+5VDC (Max 50 mA)
	19-30	GND		Twisted pair return the signal to ground level.
	31		IN	When this signal goes to LOW, the printer is reset
		RESET
				to its power-on condition.
	32		OUT	This signal is normally HIGH. This signal goes to
		ERROR
				LOW to signal that the printer cannot print due to
				an error condition.
				Refer to Item 8-4 Emergency Suspension.
	33	EXT GND		External ground.
	34	COMPULSION	OUT	Compulsion signal
	35-36	N/C		Unused.

This connector mates with an Amphenol 57-30360 connector

Parallel interface connector (printer side)

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