User guide

Installation • 19
2.9 Connectors Pin Assignments
2.9.1 Pin Assignments of PCI-9112
The PCI-9112 comes equipped with two 20-pin insulation displacement
connectors - CN1 and CN2 and one 37-pin D-type connector - CN3. CN1
and CN2 are located on the board and CN3 is located at the rear plate.
CN1 is for digital signal inputs, CN2 is for digital signal output, and CN3 is for
analog input/output and timer/counter signals. The pin assignments for each
connector are illustrated in Figure 2.8.1~ Figure 2.8.3.
CN 3: Analog Input / Output & Counter/Timer
(For single-ended connection) (For differential connection)
A
I
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
21
22
23
24
25
26
27
28
29
30
20
31
32
33
34
35
36
37
A
I3
A
I10
A
I9
A
I
8
A
I1
A
I
0
A
I
6
A
I
7
A
I
5
A
I4
A
I13
A
I14
A
I12
A
I11
A
O1
A
.GND
A
I15
A
.GND
A
.GND
A
.GND
V.REF
ExtRef2
ExtRef1
A
O
2
A
.GND
+12V
D.GND
GATE0
GATE
COUT1
N/C
ExtCLK
N/C
+5V
ExtTrg
COUT0
CN3
A
IH
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
21
22
23
24
25
26
27
28
29
30
20
31
32
33
34
35
36
37
A
IH3
A
IL2
A
IL1
A
IL0
A
IH1
A
IH0
A
IH6
A
IH7
A
IH5
A
IH4
A
IL5
A
IL6
A
IL4
A
IL3
A
O1
A
.GND
A
IL7
A
.GND
A
.GND
A
.GND
V.REF
ExtRef2
ExtRef1
A
O
2
A
.GND
+12V
D.GND
GATE0
GATE
COUT1
N/C
ExtCLK
N/C
+5V
ExtTrg
COUT0
CN3
Figure 2.8.1 Pin Assignments of CN3
Legend:
AI n: Analog Input Channel n (single-ended)
AIH n: Analog High Input Channel n (differential)
AIL n: Analog Low Input Channel n (differential)
ExtRef n: External Reference Voltage for D/A CH n
AO n: Analog Output Channel n
ExtCLK: External Clock Input
ExtTrig: External Trigger Signal
CLK: Clock input for 8254