- Computer Dynamics, Inc. OPERATING AND SERVICE MANUAL network adapter MPAC-18

Page 36
Copyright March 2003, Computer Dynamics, Inc.
All Rights Reserved
MPAC-18 Manual
Table 2 Keyboard Jack
DB9
Mouse/Keyboard
Assignment
Pin 1 GND
Pin 2 Keyboard GND
Pin 3 Keyboard +V
Pin 4 Keyboard DAT
Pin 5 Mouse CLK
Pin 6 Keyboard CLK
Pin 7 Mouse DAT
Pin 8 Mouse GND
Pin 9 Mouse +V
Table 3 Parallel (LPT-1) Jack
Pin Assignment
Signal
direction
from
computer
Pin Assignment
Signal
direction
from
computer
1 Strobe
in/out
10 Acknowledge
in
2 Data Bit 0
in/out
11 Busy
in
3 Data Bit 1
in/out
12 Paper End
in
4 Data Bit 2
in/out
13 Select Out
in
5 Data Bit 3
in/out
14 Auto Feed XT
out
6 Data Bit 4
in/out
15 Error
in
7 Data Bit 5
in/out
16 Initialize Printer
out
8 Data Bit 6
in/out
17 Select In (from Printer)
out
9 Data Bit 7
in/out
18 to 25 Ground
GND