Decision-Computer 8255-P2 Podręcznik - Strona 5
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PORT 2 (CN2)
The pin assignment of port 1/2 on page 8/9 in the original manual does not conform to the stan-
dards. The marking of pin 1 on the assembly print must be exchanged with pin 2.
Attention: If you connect directly to the post the original manual fits.
If a flat cable is plugged in, this pin assignment is valid.
D-Sub-37
IDC 40-Pin
1
PIN 1 rote
Ader GND
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
frei
Strong electromagnetic sources such as power lines, large electric motors, switches or welding machines can cause strong elec-
tromagnetic interference. Video monitors and cables are also strong sources of interference.
If the cable must be routed through an area with considerable electromagnetic interference, shielded cables should be laid with
grounding at the signal source.
Avoid placing your signal cables parallel to a high voltage line! Lay the signal cable at right angles to the power line to minimize
unwanted effects.
Signal
PIN 1 rote
Ader GND
3
GND
5
GND
7
GND
9
GND
11
GND
13
PA1
15
PA3
17
PA5
19
PA7
21
PC6
23
PC4
25
PC1
27
PB7
29
PB6
31
PB5
33
PB4
35
PB3
37
-5V
39
-12V
D-Sub-37
IDC 40-Pin
20
PIN 2
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
frei
frei
Signal
GND
4
GND
6
GND
8
GND
10
GND
12
GND
14
PA0
16
PA2
18
PA4
20
PA6
22
PC7
24
PC5
26
PC0
28
PC2
30
PC3
32
PB0
34
PB1
36
PB2
38
+5V
40
+12V