Building Basic Cables
[Documentation number: 2000430 Rev B] 29
78-pin Connector for RS-422 Quadcable/Octacable Controllers
78-pin Connector for
RS-422 Quadcable/
Octacable
Controllers
The following table lists the pinouts for a 78-pin connector. The 78-pin connector is
available on the following RocketPort models:
•
RocketPort PCI 422 quadcable, octacable and SMPTE.
•
RocketPort Plus Universal PCI 422 quadcable, octacable and SMPTE.
Pin
RS-422 DTE
Function
RS-422 DCE
Function
Pin
RS-422 DTE
Function
RS-422 DCE
Function
1
40
RxD5+
TxD5+
2
RxD6+
TxD6+
41
TxD6+
RxD6+
3
42
4
RxD6-
TxD6-
43
5
44
FRM GND 5
6
45
RxD8-
TxD8-
7
FRM GND 8
46
TxD7-
RxD7
8
TxD6-
RxD6-
47
FRM GND 7
9
RxD7-
TxD7-
48
10
RxD4+
TxD4+
49
11
RxD3+
TxD3+
50
RxD2+
TxD2+
12
TxD3+
RxD3+
51
TxD1+
RxD1+
13
52
14
TxD4+
RxD4+
53
RxD2-
TxD2-
15
FRM GND 2
54
16
RxD1-
TxD1-
55
TxD1-
RxD1-
17
TxD2-
RxD2-
56
TxD4-
RxD4-
18
57
RxD4-
TxD4-
19
FRM GND 4
58
20
FRM GND 3
59
RxD3-
TxD3-
21
TxD5+
RxD5+
60
TxD8+
RxD8+
22
61
23
62
TxD7+
RxD7+
24
FRM GND 6
63
RxD7+
TxD7+
25
RxD5-
TxD5-
64
RxD8+
TxD8+
26
65
27
TxD8-
RxD8-
66
28
TxD5-
RxD5-
67
a
a. When grounded, Pin 67 indicates to the host adapter and software that it is a 4 port adapter instead
of an 8 port adapter.
The pins with no description are floating and have no connection.
Special
29
68
30
RxD1+
TxD1+
69
31
TxD2+
RxD2+
70
32
71
33
72
34
73
35
74
36
FRM GND 1
75
37
TxD3-
RxD3-
76
38
77
39
78
Pin 1
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