Star Micronics NX-2460C, LC-240C user manual Appendix C Interface Pin Outs, Parallel Interface

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Appendix C: Interface Pin Outs

Parallel Interface

Pin			Name	Function
1	STROBE			Goes low for ≥0.5μs when active.
2			DATA0	High when active.
3			DATA1	High when active.
4			DATA2	High when active.
5			DATA3	High when active.
6			DATA4	High when active.
7			DATA5	High when active.
8			DATA6	High when active.
9			DATA7	High when active.
10			ACK	10μs low to acknowledge receipt of data.
11			BUSY	Printer sets line low when ready to receive data.
12			PAPER	High when paper runs out. Can be disabled with the User Setup Utility.
13	SELECT			High when printer is on-line.
14			AFXT	Normally high.
15				Not connected.
16	SIGNAL GND			Signal ground
17	CHASSIS			Chassis ground (isolated from signal ground)
18			+5V	+5V DC output from printer
19 - 30			GND	Twisted pair ground return
31			RESET	Printer is reset when this signal goes low.
32		ERROR		Low when printing cannot continue due to error.
33	EXT GND			External ground
34 - 35				Not connected.
36	SELECT IN			Normally low.

Optional Serial Interface

Pin	Name	Function
1	GND	Printer chassis ground
2	TXD	Data from printer
3	RXD	Data to printer
4	RTS	Always low
5	CTS	Low when computer is ready to send data. Printer ignores this signal.
6		Not connected.
7	GND	Signal ground
8 - 10		Not connected.
11	RCH	Printer sets line low when ready to receive data. Same signal as Pin 20.
12 - 19		Not connected.
20	DTR	Printer sets line low when ready to receive data.
21 - 25		Not connected.