Compaq 1000 Personal Computer User Manual


 
A-2 Connector Pin Assignments
Table A-3
Parallel Interface
Connector Pin Signal
7
2425
13 12
23 22 21 20
11 10 89
1819 1617
5643
15 14
12
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18-25
Strobe#
Data Bit 0
Data Bit 1
Data Bit 2
Data Bit 3
Data Bit 4
Data Bit 5
Data Bit 6
Data Bit 7
Acknowledge#
Busy
Paper End
Select
Auto Linefeed#
Error#
Initialize Printer#
Select IN#
Signal Ground
Table A-4
Serial Interface
Connector Pin Signal
7
1
6
2
8
3
9
54
1
2
3
4
5
6
7
8
9
Carrier Detect
Receive Data#
Transmit Data#
Data Terminal Ready
Signal Ground
Data Set Ready
Request to Send
Clear to Send
Ring Indicator