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PCI Photon 8 Port RS232
The Lynx Card Octopus Cable Pinouts
The Lynx card octopus cable connects a 78 pin Male D
connector to 8 nine way Male D connectors. Each of the cables has
9 cores plus a sheath. The sheath each of the 25 way D connectors
is connected to the sheath of the 78 way D connector. Each of the
9 pin D connectors has 9 connections in the standard PC serial port
configuration, see figure 7-8, below. Each cable is approximately
1 metre long and is clearly marked as P1 for Port 1, P2 for Port 2
etc.
78 way D connector Pinouts
Port
Port
#1
#2
30
50
55
17
51
31
16
53
54
34
68
69
35
33
49
32
36
15
78 way D connector Pinouts
Port
Port
#5
#6
40
2
28
8
21
41
25
4
5
42
72
73
43
23
22
3
44
24
NOTE: Pins 65,66,75 - 78 on the above connector are not used
Port
Port
#3
#4
11
10
37
56
12
14
59
57
58
38
70
71
39
18
13
52
20
19
Port
Port
#7
#8
63
64
46
27
62
60
9
45
29
26
74
75
48
6
61
1
47
7
Pin Function
Transmitted Data (TXD)
Received Data (RXD)
Request To Send (RTS)
Clear To Send (CTS)
Data Set Ready (DSR)
Ground (GND)
Data Carrier Detect (DCD)
Data terminal Ready(DTR)
Ring Indicator (RI)
Pin Function
Transmitted Data (TXD)
Received Data (RXD)
Request To Send (RTS)
Clear To Send (CTS)
Data Set Ready (DSR)
Ground (GND)
Data Carrier Detect (DCD)
Data terminal Ready(DTR)
Ring Indicator (RI)
Chapter 4 Page 46
Index
9
25
Pin
Pin
3
2
2
3
7
4
8
5
6
6
5
7
1
8
4
20
9
22
9
25
Pin
Pin
3
2
2
3
7
4
8
5
6
6
5
7
1
8
4
20
9
22
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