ZyXEL Communications 2864 Series User Manual page 249

ZyXEL PARALLEL PORT INTERFACE
Signal Signal name
pin
1 -STROBE
2 DATA 0
3 DATA 1
4 DATA 2
5 DATA 3
6 DATA 4
7 DATA 5
8 DATA 6
9 DATA 7
10 -ACKNLG
11 BUSY
12 PE
13 SLCT
14 -ATFD
15 -ERROR
16 -INIT
17 -SLCT IN
18 GND
19 ---
20 GND
21 GND
22 GND
23 ---
24 GND
25 GND
Appendix C
Description
Strobe pulse
Data signal: bit 0.
Data signal: bit 1.
Data signal: bit 2.
Data signal: bit 3.
Data signal: bit 4.
Data signal: bit 5.
Data signal: bit 6.
Data signal: bit 7.
Acknowledge signal; data has been received
by the printer and the printer is ready to accept
further data.
Busy signal; printer is not ready to receive
data.
Paper end
Printer is in the selected state; printer is on-line.
Auto-feed; paper is auto-fed by one line after
every printed line.
Printer is in error state.
Resets printer to initial state.
Enables printer for data entry.
Ground
Not connected
Ground
Ground
Ground
Not connected
Ground
Ground
C–1
Direction
Adapter - Printer