HPIIISi TWINAX CARD

Table C-1 (continued). Parallel-Interface Specifications.

 

 

 

Parallel

 

 

Signal

Return

 

Cable

 

 

Pin

Pin

Signal

Pin

Direction

Description

 

 

 

 

 

 

14

AUTO

14

IN

This signal is NOT

 

 

FEED

 

 

supported. Defined by

 

 

 

 

 

many printers to add

 

 

 

 

 

a LF to each CR. The

 

 

 

 

 

IBM 5250 protocol

 

 

 

 

 

does not support this

 

 

 

 

 

signal.

 

 

 

 

 

 

15

NC

Not used.

 

 

 

 

 

 

16

GND

19

Logic Ground.

 

 

 

 

 

 

17

CGND

Chassis Ground.

 

 

 

 

 

 

18

NC

Not used.

 

 

 

 

 

 

19-30

GND

21-24

Twisted-pair ground

 

 

 

 

 

returns listed above.

 

 

 

 

 

 

31

INIT

16

IN

Defined to reset and

 

 

 

 

 

clear the printer when

 

 

 

 

 

LOW; the reset and

 

 

 

 

 

clear are NOT sup-

 

 

 

 

 

ported by the Card.

 

 

 

 

 

The IBM host can’t be

 

 

 

 

 

interrupted by this

 

 

 

 

 

signal. An ACKNLG

 

 

 

 

 

is generated for

 

 

 

 

 

handshaking.

 

 

 

 

 

 

32

ERROR

15

OUT

This signal goes LOW

 

 

 

 

 

when the printer is in

 

 

 

 

 

an error state.

 

 

 

 

 

 

33

GND

25

Logic Ground.

 

 

 

 

 

 

34

NC

Not used.

 

 

 

 

 

 

35

HIGH

Not used.

 

 

 

 

 

 

36

SLCTIN

17

Not supported.

 

 

 

 

 

 

124

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Black Box PC118C-R2 manual Table C-1 . Parallel-Interface Specifications