Star Micronics LC24-20 user manual Pinout of Interface Connector, Parallel interface

PINOUT OF INTERFACE CONNECTOR

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

Parallel interface

Pin Name Function

Goes from high to low (for= 0.5 ps) when

1 STROBE active

2DATA() High when active

3DATA1 High when active

4DATA2 High when active

5DATA3 High when active

6 DATA4 High when active

7DATA5 High when active

8DATA6 High when active

9DATA7 High when active

10	ACK	5 ps low pulse acknowledges receipt of data
11	BUSY	Low when printer ready to receive data
12	PAPER	High when paper out. Can be disabled with
		EDS setting
13	SELECT	High when printer is on-line
14, 15	N/C

16SIGNAL GND Signal ground

17CHASSIS Chassis ground (isolated from signal ground)

18+5V +5V DC output from printer

19-30	GND	Twisted pair ground return
31	RESET	When this input signal is low, printer is reset
32	ERROR	Outputs low when printer cannot continue, due
		to an error

33EXT GND External ground

34,35 N/C

36SELECT IN Always high

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