20
B
5
P
ORT
P
INOUTS
This appendix shows the pinouts of the Print Server parallel port
connector.
Parallel Ports
The following table lists the pinouts of the print server’s 25-pin
parallel port connector (identical to the connector used on most
personal computers), as well as the 36-pin Centronics connector used
on most printers.
Signal names beginning with
n
are active-low signals.
25-pin
Centronics
Signal
Source
1
1
nStrobe
Host
2
2
Data 1
Bi-directional
3
3
Data 2
Bi-directional
4
4
Data 3
Bi-directional
5
5
Data 4
Bi-directional
6
6
Data 5
Bi-directional
7
7
Data 6
Bi-directional
8
8
Data 7
Bi-directional
9
9
Data 8
Bi-directional
10
10
nAck
Printer
11
11
Busy
Printer
12
12
PError
Printer
13
13
Select
Printer
14
14
nAutoFd
Host
15
32
nFault
Printer
