Pararell Interface Connector - Panasonic 135FP Operating Instructions Manual

Parallel Interface Connector
The printer has a parallel interface for connecting to PC.
Shape of Connector
Signal lines and pin arrangement
No. I/O Signal name
1 I /STB
2 I/O DATA0
3 I/O DATA1
4 I/O DATA2
5 I/O DATA3
6 I/O DATA4
7 I/O DATA5
8 I/O DATA6
9 I/O DATA7
10 O /ACK
11 O BUSY
12 O PE
13 I SELECT
14 O /AUTOFD*
15 Not used
16 GND
17 GND
18 O VCC
*Signal used for bidirectional communication
No. I/O Signal name
19 GND
20 GND
21 GND
22 GND
23 GND
24 GND
25 GND
26 GND
27 GND
28 GND
29 GND
30 GND
31 I /INIT
32 O /FAULT
33 Not used
34 Not used
35 Not used
36 I /SELIN*
Signal functions
Signal name
/STB Signal for sending data to printer.
Steady-state value is High. Printer
reads data until this signal becomes
from Low to High.
DATA0 to Input signal for receiving 8-bit data.
Data7 Logic 1 is High. DATA0 is
LSB and DATA 7 is MSB.
/ACK Signal indicating that printer has
read data into device completely.
This signal is output in response to
/STB.
BUSY Signal indicating that printer is
unable to receive data. Printer is
able to receive data when this signal
is Low.
PE Signal indicating Paper Out of
printer. This signal is Low when
paper is loaded and is High when
paper is out.
SELECT Signal indicating that printer is under
online status. Printer is capable of
receiving data when this signal is
High.
/AUTFD Signal used for bidirectional
communication
GND Ground
VCC Signal indicating that the power of
printer is on. This signal allows
verifying ON/OFF status of power of
printer and connection status of
printer cable.
/INT Signal for initializing printer. Steady-
state value is High. Printer is
initialized by Low.
/FAULT Signal indicating that printer is faulty.
/SELIN Signal used for bidirectional
communication
Appendix
Function
67