Parallel interface
The bidirectional parallel interface offers the so called “nibble” mode of the
IEEE1284 interface norm. This enables installation in accordance with
Win 95 “Plug & Play”.
Connector
no.
Direction
Signal
1
←
STROBE (active low)
2
←
DATA 1
3
←
DATA 2
4
←
DATA 3
5
←
DATA 4
6
←
DATA 5
7
←
DATA 6
8
←
DATA 7
9
←
DATA 8
10
→
ACK (active low)
11
→
BUSY
12
→
PAPER EMPTY (PE)
13
→
SELECT
14
←
AUTO FEED (active low)
15
not used
16
not used
17
CHASSIS GROUND
18
+5 V (I
max
= 200 mA)
19 – 29
SIGNAL GROUND
30
not used
31
←
INIT (active low)
32
→
ERROR (active low)
33 – 35
not used
36
←
SELECT IN
printer PC
←
Input
→
Output
Parallel interface
B - 2
