Copyright © 2006-2018 Petros Savvas, All rights reserved.
Welcome Firmware Diagrams Manuals Support
Web Design By
WRAP
LPT Port
From Pin
To Pin
1
13
2
15
10
16
11
17
12
14
Serial Port
Connector DB-9
Pin
Signal
1
CD Carrier Detect
2
RXD Receive Data
3
TXD Transmit Data
4
DTR Data Terml Ready
5
GND Ground
6
DSR Data Set Ready
7
RTS Request To Send
8-9
RI Ring Indicator
Pins 6 and 8
are jumped  
together and
join  20 on
the other end
(both ways)
Parallel
Port
Connector
DB-25
Pin
Signal
Pin
Signal
1
Strobe
19
Ground
2
Data Bit 0
20
Ground
3
Data Bit 1
21
Ground
4
Data Bit 2
22
Ground
5
Data Bit 3
23
Ground
6
Data Bit 4
24
Ground
7
Data Bit 5
25
Ground
8
Data Bit 6
26
Ground
9
Data Bit 7
27
Ground
10
Acknowledge
28
Ground
11
Busy
29
Ground
12
Paper Out
30
Ground
13
Select
31
Prime
14
Auto Feed XT
32
Error
15
OSCXT
33
Signal Ground
16
Signal Ground
34
NC
17
Frame Ground
35
NC
18
+5V
36
NC

The ground wire is connected to the same pin on both ends

The last three wires are a reverse to the prior three

Serial
Port
Wrap
From Pin
To Pin
Pin 2
Pin 3
Pin 4
Pin 5
Pin 22
Pin 6
Pin 8
Pin 20
bidorbuy South Africa - Bid, Buy or Sell cameras, computers, diamonds, coins, cars & more on auction at cheap prices