Kontron
Parallel Communication Interface
16
MOPS/386A User’s Guide
9.
PARALLEL-COMMUNICATION INTERFACE
The MOPS/386A incorporates an IBM XT/AT compatible parallel port. It can be set to bi-
directional and supports SPP, EPP and ECP operating modes. The bi-directional functions
are compatible with those of an IBM PS/2 style parallel port.
9.1
Connector
The parallel port is available through the X7 connector (26 pins). To have the signals
available on a standard, parallel-interface connector DSUB-25, an adapter cable is
required, which is available from Kontron (KAB-DSUB25-1, Part Number 96015-0000-00-
0).
The following table shows the pinout as well as necessary connections for a DSUB-25
adapter.
Header
Pin
Signal Name
Function
In / Out
DSUB-25
1
/STB
Strobe
Out
1
3
D0
Data 0
I/O
2
5
D1
Data 1
I/O
3
7
D2
Data 2
I/O
4
9
D3
Data 3
I/O
5
11
D4
Data 4
I/O
6
13
D5
Data 5
I/O
7
15
D6
Data 6
I/O
8
17
D7
Data 7
I/O
9
19
/ACK
Acknowledge
In
10
21
/BUSY
Busy
In
11
23
PE
Paper out
In
12
25
/SLCT
Select out
In
13
2
/AFD
Autofeed
Out
14
4
/ERR
Error
In
15
6
/INIT
Init
Out
16
8
/SLIN
Select in
Out
17
26
VCC
+ 5 V
--
NC
10,12
GND
Signal Ground
--
18 - 25
14,16
GND
Signal Ground
--
18 - 25
18,20
GND
Signal Ground
--
18 - 25
1
2
25
26
22,24
GND
Signal Ground
--
18 - 25
To find the location of the parallel port on the MOPS/386A board, please see the Appendix
E: Connector Layout chapter.
