Appendix c, Zyxel parallel port interface – ZyXEL Communications 2864 User Manual
Page 249
C–1
Appendix C
ZyXEL PARALLEL PORT INTERFACE
Signal
pin
Signal name
Description
Direction
Adapter - Printer
1
-STROBE
Strobe pulse
→
2
DATA 0
Data signal: bit 0.
↔
3
DATA 1
Data signal: bit 1.
↔
4
DATA 2
Data signal: bit 2.
↔
5
DATA 3
Data signal: bit 3.
↔
6
DATA 4
Data signal: bit 4.
↔
7
DATA 5
Data signal: bit 5.
↔
8
DATA 6
Data signal: bit 6.
↔
9
DATA 7
Data signal: bit 7.
↔
10
-ACKNLG
Acknowledge signal; data has been received
by the printer and the printer is ready to accept
further data.
←
11
BUSY
Busy signal; printer is not ready to receive
data.
←
12
PE
Paper end
←
13
SLCT
Printer is in the selected state; printer is on-line.
←
14
-ATFD
Auto-feed; paper is auto-fed by one line after
every printed line.
→
15
-ERROR
Printer is in error state.
←
16
-INIT
Resets printer to initial state.
→
17
-SLCT IN
Enables printer for data entry.
→
18
GND
Ground
19
---
Not connected
20
GND
Ground
21
GND
Ground
22
GND
Ground
23
---
Not connected
24
GND
Ground
25
GND
Ground