
CIO-DAS48-PGA User's Guide Installing the CIO-DAS48-PGA
12
Pinout – main I/O connector
The CIO-DAS48-PGA I/O connector is a standard 50-pin header connector that is accessible from the rear of
the computer through the expansion backplate.
LLGND 50
CH 47 IN 48
CH 46 IN 46
CH 45 IN 44
CH 44 IN 42
CH 43 IN 40
CH 42 IN 38
CH 41 IN 36
CH 40 IN 34
CH 39 IN 32
CH 38 IN 30
CH 37 IN 28
CH 36 IN 26
CH 35 IN 24
CH 34 IN 22
CH 33 IN 20
CH 32 IN 18
CH 31 IN 16
CH 30 IN 14
CH 29 IN 12
CH 28 IN 10
CH 27 IN 8
CH 26 IN 6
CH 25 IN 4
CH 24 IN 2
49 LLGND
47 CH 23 IN
45 CH 22 IN
43 CH 21 IN
41 CH 20 IN
39 CH 19 IN
37 CH 18 IN
35 CH 17 IN
33 CH 16 IN
31 CH 15 IN
29 CH 14 IN
27 CH 13 IN
25 CH 12 IN
23 CH 11 IN
21 CH 10 IN
19 CH 9 IN
17 CH 8 IN
15 CH 7 IN
13 CH 6 IN
11 CH 5 IN
9 CH 4 IN
7 CH 3 IN
5 CH 2 IN
3 CH 1 IN
1 CH 0 IN
Single-ended mode
LLGND 50
CH 23 IN LO 48
CH 22 IN LO 46
CH 21 IN LO 44
CH 20 IN LO 42
CH 19 IN LO 40
CH 18 IN LO 38
CH 17 IN LO 36
CH 16 IN LO 34
CH 15 IN LO 32
CH 14 IN LO 30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
CH 13 IN LO
CH 12 IN LO
CH 11 IN LO
CH 10 IN LO
CH 9 IN LO
CH 8 IN LO
CH 7 IN LO
CH 6 IN LO
CH 5 IN LO
CH 4 IN LO
CH 3 IN LO
CH 2 IN LO
CH 1 IN LO
CH 0 IN LO
49 LLGND
47 CH 23 IN HI
45 CH 22 IN
43 CH 21 IN
41 CH 20 IN
39 CH 19 IN
37 CH 18 IN
35 CH 17 IN
33 CH 16 IN
31 CH 15 IN
29 CH 14 IN
27 CH 13 IN
25 CH 12 IN
23 CH 11 IN
21 CH 10 IN
19 CH 9 IN
17 CH 8 IN
15 CH 7 IN
13 CH 6 IN
11 CH 5 IN
9 CH 4 IN
7 CH 3 IN
5 CH 2 IN
3 CH 1 IN
1 CH 0 IN
HI
HI
HI
HI
HI
HI
HI
HI
HI
HI
HI
HI
HI
HI
HI
HI
HI
HI
HI
HI
HI
HI
HI
Differential mode
Figure 5. I/O connector pin-out
Current connections are made between CH# HI and CH# LOW. The positive terminal of the current to be
measured must be connected to CH# HI (refer to Current loop measurements on page 13).
Cabling
The red stripe
identifies pin # 1
50-pin Female
IDC connector
50-pin Female
IDC Connector
1
2
49
50
2
50
1
49
Figure 2-1. C50FF-x cable
Field wiring, signal termination, and conditioning
You can use the following cabling, screw termination, and signal conditioning products with the CIO-DAS48-
PGA.
CIO-MINI50 – 50-pin screw terminal board
CIO-SPADE50 — 16" X 4" termination panel which mates with both 37-pin and 50-pin connectors.
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