1 o o 2 3 o o 4 5 o o 6 7 o o 8 9 o o 10Pin 1 is marked with a triangle. The corresponding wire is red.
There are two ways of connecting these to a DB9 or DB25 connector;
DB9 IDC-10 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9Pin 10 on the IDC is not used
1 2 3 4 5
-----------------
\ * * * * * /
\ * * * * /
-------
6 7 8 9
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RI
5 GND
IDC
DCD 1 o o 2 RXD TXD 3 o o 4 DTR GND 5 o o 6 DSR RTS 7 o o 8 CTS RI 9 o o 10 Not ConnectedThis system is well suited for soldering the sub-D connector.
DB25 IDC26 1 1 2 3 3 5 4 7 5 9 6 11 7 13 8 15 9 17 10 19 11 21 12 23 13 25 14 2 15 4 16 6 17 8 18 10 19 12 20 14 21 16 22 18 23 20 24 22 25 24Pin 26 on the IDC is not used.
1
3 2 1 0 9 8 7 6 5 4 3 2 1
---------------------------------
\ o o o o o o o o o o o o o /
\ o o o o o o o o o o o o /
-----------------------
2
5 4 3 2 1 0 9 8 7 6 5 4
1 -STROBE 14 -AUTOFEED
2 D0 15 -ERROR
3 D1 16 -INIT PRINTER
4 D2 17 -SELECT INPUT
5 D3 18 GND
6 D4 19 GND
7 D5 20 GND
8 D6 21 GND
9 D7 22 GND
10 -ACK 23 GND
11 BUSY 24 GND
12 P. END 25 GND
13 SELECT
IDC
-STB 1 o o 2 -AFD D0 3 o o 4 -ERROR D1 5 o o 6 -PINIT D2 7 o o 8 -SLIN D3 9 o o 10 GND D4 11 o o 12 GND D5 13 o o 14 GND D6 15 o o 16 GND D7 17 o o 18 GND -ACK 19 o o 20 GND BUSY 21 o o 22 GND PE 23 o o 24 GND SLCT 25 o o 26 Not ConnectedThis system is well suited for crimp sub-D connectors.
RXD--------\ /--------RXD
X
TXD--------/ \--------TXD
RTS--------\ /--------RTS
X
CTS--------/ \--------CTS
DTR--------\ /--------DTR
X
DSR--*-----/ \-----*--DSR
| |
DCD--+ +--DCD
GND---------------------GND
The screen of the cable should be connected (soldered) to the connector
shell at both ends of the cable.
5 4 3 2 1
-----------------
\ o o o o o /
\ o o o o /
-------
9 8 7 6
DB9 Female
2 --------\ /-------- 2
X
3 --------/ \-------- 3
7 --------\ /-------- 7
X
8 --------/ \-------- 8
4 --------\ /-------- 4
X
6 --*-----/ \-----*-- 6
| |
1 --+ +-- 1
5 --------------------- 5
1
3 2 1 0 9 8 7 6 5 4 3 2 1
---------------------------------
\ o o o o o o o o o o o o o /
\ o o o o o o o o o o o o /
-----------------------
2
5 4 3 2 1 0 9 8 7 6 5 4
DB25 Female
3 --------\ /-------- 3
X
2 --------/ \-------- 2
4 --------\ /-------- 4
X
5 --------/ \-------- 5
20 --------\ /-------- 20
X
6 --*-----/ \-----*-- 6
| |
8 --+ +-- 8
7 --------------------- 7
25 pins 9 pins
3 --------\ /-------- 2
X
2 --------/ \-------- 3
4 --------\ /-------- 7
X
5 --------/ \-------- 8
20 --------\ /-------- 4
X
6 --*-----/ \-----*-- 6
| |
8 --+ +-- 1
7 --------------------- 5
D0----------------------ERROR D1----------------------SELECT D2----------------------PE D3----------------------ACK D4----------------------BUSY ACK---------------------D3 BUSY--------------------D4 PE----------------------D2 SELECT------------------D1 ERROR-------------------D0 GND---------------------GND
1
1 2 3 4 5 6 7 8 9 0 1 2 3
---------------------------------
\ * * * * * * * * * * * * * /
\ * * * * * * * * * * * * /
-----------------------
2
4 5 6 7 8 9 0 1 2 3 4 5
DB25 Male
2 --------------------- 15 3 --------------------- 13 4 --------------------- 12 5 --------------------- 10 6 --------------------- 11 10 --------------------- 5 11 --------------------- 6 12 --------------------- 4 13 --------------------- 3 15 --------------------- 2 18 ... 25 -------------- 18 ... 25
+ TXD ----\ /---- + TXD
\ /
- TXD ----\ X /---- - TXD
X X
+ RXD ----/ X \---- + RXD
/ \
- RXD ----/ \---- - RXD
1 ----\ /---- 1
\ /
2 ----\ X /---- 2
X X
3 ----/ X \---- 3
/ \
6 ----/ \---- 6
1 Scr A 2 3 4 --- P 5 --- Y 6 --- R 7 --- C 8 --- V 9 --- D 10 --- L 11 --- E 12 --- H 13 --- F 14 --- N 15 16 17 --- U 18 --- NN 19 GND B 20 GND 21 22 --- S 23 --- AA 24 --- T 25 26 --- X 27 28 29 30 31 32 33 34 35 --- W 36 37 GNDThe pins marked `GND' are connected to each other.