Printronix P9000 Series manual Output Input Signal PIN

Data Strobe - A high true pulse from the host to indicate that data is ready. The data strobe must remain high at least until the Data Request line goes false.

Data Lines - Eight standard or inverted levels from the host that specify character data, plot data, or a control code. Sensing Data Line 8 is controlled by printer configuration.

Paper Instruction (PI) - Optional standard or inverted level VFU signal from the host with the same timing and polarity as the data lines. PI line sensing is controlled by printer configuraF tion.

NOTE: The PI Line must be disabled (configuration option selected from the front panel) if the host computer does not drive or control the PI Line. If the line is not con/ trolled by the host and sensing is enabled, rapid paper slewing will occur.

Interface Verification - Two pins on the interface connector jumpered together allow you to verify proper installation of the interface connector.

NOTE: The +5 volt test is only connectable with a jumper.

Table 7-1. Connector Pin Assignments for

Dataproducts Interface with AMP Connector

OUTPUT		INPUT
SIGNAL	PIN	SIGNAL	PIN
Ready	22	Data Line 1	19
Return	6	Return	3
On Line	21	Data Line 2	20
Return	5	Return	4
Data Request	23	Data Line 3	1
Return	7	Return	2
Return	39	Data Line 4	41
		Return	40
I/F Verif.	45, 46	Data Line 5	34
Paper Instr.	30	Return	18
Return	14	Data Line 6	43
		Return	42
		Data Line 7	36
		Return	35
		Data Line 8	28
		Return	44
		Data Strobe	38
Pins not listed are not connected.		Return	37

7-2 Interfaces