Citizen CLP-2001 user manual Parallel interface pin assignment table

Parallel interface pin assignment table

Pin No.						Signal	Input/Output	Description
1							Input	Strobe signal for 8-bit data
			STROBE
2−9	DATA1-8						Input	8-bit parallel signal
10							Output	8-bit data request signal
				ACKNLG
11	BUSY						Output	Signal showing printer busy
12	PERROR						Output	Signal showing paper out
13	SELECT						Output	Signal showing printer "on line" (printing)
								or "off line" (pause)
14							Input	Invalidness (ignorance)
		AUTOFD
15	NC						−	Not used
16	S.GND						−	Signal ground
17	FGND						−	Frame ground
18	P.L.H						Output	Signal showing peripheral logic high (pull
								up to +5V with 1.2 KΩ)
19−30	GND						−	Ground for twisted pair return
31							Input	Printer reset
					INIT
32							Output	Signal showing printer error
		FAULT
33−35	NC						−	Not used
36							Input	Invalidness (ignorance)
						SELECTIN

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