Printronix S828 Programmer's Manual page 366

Programmer Manual
This phase is initiated by the host and returns the interface to the compatibility mode.
Parallel Interface Signals
Description of the signals in monodirectional link:
Signal Name Pin N° Source
STROBE 1
ACK 10
DATA BIT 1 2
DATA BIT 2 3
DATA BIT 3 4
DATA BIT 4 5
DATA BIT 5 6
DATA BIT 6 7
DATA BIT 7 8
DATA BIT 8 9
BUSY 11
PE 12
SELECT 13
AUTOFEEDXT 14
GND 16
CHASSIS GND 17
+5 VDC 18
SIGNAL GND 19-30 –
INIT 31
ERROR 32
+5V 35
SELECTIN 36
Appendix B‐ Interfaces
Description
HOST Clock signal which controls data transmission with its falling edge.
PRINTER Negative pulsed signal indicating that the printer has received data
and is ready to accept the next set of data. Also sent when the
printer is switched from off-line to on-line and at the end of the
initialization time. The BUSY line is always active.
PRINTER / Data 8 is the most significant bit. These are the data lines used by
HOST host or printer to transfer control code or ASCII codes.
PRINTER When high, this signal indicates that the printer cannot accept data
or control codes. This signal goes high during data processing, in
test and program modes, during initialization, when the buffer is full,
and when a paper jam, paper end or paper size error occurs, in case
of a power-on reset, the reception of a STROBE signal, while the
register was not yet read, or when the INIT line is still active.
PRINTER When high, this signal indicates that the automatic input bin is out of
paper and paper cannot be loaded from an other bin.
PRINTER When high, this signal indicates that the printer is on-line. It is put to
low state in case of initialization or test and program mode. In IBM
Proprinter emulation in low condition this signal signals a off-line
request from the operator panel, paper jam, paper end or paper size
errors.
HOST Active low level signal. Indicates whether a LF is performed after a
CR or not.
– Logical ground level (0V).
– Frame ground.
PRINTER Is the DC voltage supplied by a component that limits the driven
capability up to 100 mA.
Signal ground.
HOST Active low level signal. Indicates, that the printer is initializing. The
BUSY signal is forced high.
PRINTER When low, this signal indicates that the printer is offline, there is an
offline request from the operator panel, or the printer is in an error
state because of: paper jam, paper end or paper size error, engine
error, output bin full or cover open condition.
PRINTER Pulled up to signal.
HOST Active low level signal. Enables the printer.
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PTX‐S828
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