Panasonic KX-P3696 Operating Instructions Manual page 62

Parallel Interfacing
62
A method of transferring data from a computer to a printer through a parallel interiace based on the
Centronics Standard.
Specifications: -"
edata transfer speed: 1000 cps minimum
esynchronization: external STROBE pulse
elogic levels: TTL {Transistor-Transistor-Logic} levels
ehandshaking: BUSY and ACK signals
econnector type: 57-30360 {AM PHENOL} or equivalent
ecable: use a shielded cable {6'5" 11.95 meters} or less in length.
When the printer is processing data, the BUSY signal is high. The printer will not accept new data from the
computer. After the processing is completed, the BUSY signal goes low. {The BUSY signal is also high
when the printer is OFF LINE.} When the busy signal occurs, the ACK signal goes low indicating to the
computer that the data has been processed and the printer is ready to accept more data. This
handshaking routine occurs each time a character is sent to the printer.
BUSY SLCT
ON LINE LOW HIGH
OFF LINE HIGH LOW
PAPER OUT HIGH LOW
Printer status signals
18
000000000000000000
000000000000000000
3;
19
Parallel interiace connector {printer side}
Signal Relurn
Signal
Direc-
pin side pin lion
1
19 STB
2 20 DATA 1
3 21 DATA 2
4
22 DATA 3
5 23 DATA 4 Input
6 24 DATA 5
7
25 DATA 6
8 26
DATA 7
9 27 DATA 8
10
28 ACK
11 29 BUSY Output
12
PO
Pin Configuration {Parallel}
PO ERROR
LOW HIGH
LOW LOW
HIGH LOW
Signal Relurn
Signal
Direc-
pin side pin
ticn
13 SLCT Output
14 AUTO FEED XT Input
15
16 SG
17 FG
18 +5 V
Output
31
30
PRIME Input
32 ERROR Output
33
34
35
36 SLCTIN Input