Panasonic KX-P3696 Operating Instructions Manual page 63

Connector pin signals
STB ... STROBE
-This is a synchronizing input signal to read data
into the printer.
-This signal is normally high. Data is read in when it
is low.
DATA 1-DATA 8
-These are the input signals which carry the 8 data
bits of information.
- The signal is read in synchronization with the
STROBE pulse. A high level indicates a logical "1 ".
ACK ... ACKNOWLEDGE
-This is an output signal to the computer indicating
that the printer is ready to receive the next data.
When the condition becomes true, the signal goes
low.
- The ACK signal is automatically sent whenever the
printer is switched ON LINE and the BUSY signal
drops from high to low.
BUSY
- This output signal indicates the status on which
the printer cannot receive data.
- The signal is high under the following conditions:
1. receive buffer full
2. printer is processing data
3. printer is OFF LINE
4. printer is in an error condition
PO ... PAPER OUT
-This output signal indicates the absence of paper
and goes high during a "Paper Out" condition.
SLCT...SELECT
-This output signal is high in the ON LINE mode
and low when OFF LINE.
-The printer enters the ON LINE mode:
1. when the printer is turned on
2. when PRIME is received
3. when the RESET command is received
4. when the ON LINE switch is pressed
-The printer enters the OFF LINE mode:
1. when the printer is out of paper
2. when the printer is switched OFF LINE
AUTO FEED XT (AFXT)
-While this input signal is low, one line feed (LF)
command will be added to each carriage return
(CR).
-Auto LF setting in the Function mode can alter the
response by the printer to an AFXT signal. If auto
LF is ON, the printer will perform a CR+LF
regardless of the level of the AFXT signal. When
auto LF is OFF, automatic action is disabled.
SG ... SIGNAL GROUND
-The twisted pair return wires (pins 19-30) are
connected to signal ground.
FG ... FRAME GROUND
- Frame ground is the same as chassis ground.
+5V
-This is for evaluation only. It should not be used to
supply power for external equipment.
PRIME
-This input signal is normally high and goes low to
reset the printer. It can be received anytime during
printer operation.
ERROR
-This output signal is normally high, and goes low
when an error occurs. An error condition can be
caused by:
1. a "Paper Out" condition
2. the printer is OFF LINE
3. an overload condition exists
SLCTIN
-This input signal is normally low, and goes high
when using the Setup Disk.
Timing Chart
(When normal printing code is received)
DATA1-8
~TB
BUSY
ACK
-
-
I--
Tl~
T1 . . . . 0.5 Ils (Min)
T2 ..... 0.5 fis (Min)
T3 ..... 0.5
~s
(Min)
T4 .. 5
~s
(Max)
T3
-
T5
T5 ..... 1
ms or
less when buffer is nol full
Timing Diagram
-
T4
I
-
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