Citizen CL-S6621 Manual De Usuario

65

Transmission.mode

8-bit.parallel.data

Receive.buffer.size

16.kB

Transmission.modes

Compatible mode:
It.is.an.asynchronous.forward.direction.of.the.byte.
width.(from.host.to.printer).channel,.and.the.interface.
line.of.the.data.is.operated.in.accordance.with.signal.
line.definitions.of.Centronics.
NIBBLE mode:
Nibble.mode.is.asynchronous.reverse.channel.
communication.with.data.transmission.controlled.by.
the.host.computer..In.reverse.channel.transmission,.the.
data.is.nibble.transmitted.in.two.parts.using.four.status.
lines.(Fault,.Select,.PE,.and.Busy)..And.nibble.mode.can.
be.used.along.with.compatible.mode.to.send.data.in.
two.directions.
ECP mode:
ECP.mode.permits.bi-directional.asynchronous.data.
transmission,.and.thanks.to.its.interlock.handshake,.it.
does.not.require.the.timing.necessary.with.compatible.
mode.

Signal.level

IEEE1284.standard

1

*STROBE

Input

Strobe.signal.to.read.in.8-bit.data

2-9

DATA1-8

Input

8-bit.parallel.signal

10

*ACKNLG

Output

8-bit.data.request.signal

11

BUSY

Output

Signal.specifying.printer.busy

12

PERROR

Output

Signal.specifying.media.out

13

SELECT

Output

Signal.specifying.if.the.printer.is.on-line.
(printing.enabled).or.off-line.(pausing)

14

AUTOFD

Input

Invalid.(ignored)

15

NC

-

Not.used

16

GND

-

Signal.ground

17

FGND

-

Frame.ground

18

P.L.H

Output

Peripheral.logic.high.(pull.up.to.+5.V.at.1.kΩ)

19-30

GND

-

Ground.for.twisted.pair.return

31

*INIT

Input

Printer.reset

32

*FAULT

Output

Signal.specifying.printer.error

33-35

NC

-

Not.used

36

SELECTIN

Input

Invalid.(ignored)