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RocketPort 550 8 OCTA Cable - 78 way D type fan out to 8 DB25 Male
DB78 Pin
DB25 Pin
RS232 Signal/Port
DB78 Pin
DB25 Pin
RS232 Signal/Port
30 2 TxD Port 0 40 2 TxD Port 4
55 3 RxD Port 0 28 3 RxD Port 4
51 4 RTS Port 0 21 4 RTS Port 4
16 5 CTS Port 0 25 5 CTS Port 4
54 6 DSR Port 0 5 6 DSR Port 4
71 7 Signal Gnd Port 0 75 7 Signal Gnd Port 4
35 8 DCD Port 0 43 8 DCD Port 4
49 20 DTR Port 0 22 20 DTR Port 4
36 22 RI Port 0 44 22 RI Port 4
50 2 TxD Port 1 2 2 TxD Port 5
17 3 RxD Port 1 8 3 RxD Port 5
31 4 RTS Port 1 41 4 RTS Port 5
53 5 CTS Port 1 4 5 CTS Port 5
34 6 DSR Port 1 42 6 DSR Port 5
72 7 Signal Gnd Port 1 76 7 Signal Gnd Port 5
33 8 DCD Port 1 23 8 DCD Port 5
32 20 DTR Port 1 3 20 DTR Port 5
15 22 RI Port 1 24 22 RI Port 5
11 2 TxD Port 2 63 2 TxD Port 6
37 3 RxD Port 2 46 3 RxD Port 6
12 4 RTS Port 2 62 4 RTS Port 6
59 5 CTS Port 2 9 5 CTS Port 6
58 6 DSR Port 2 29 6 DSR Port 6
73 7 Signal Gnd Port 2 77 7 Signal Gnd Port 6
39 8 DCD Port 2 48 8 DCD Port 6
13 20 DTR Port 2 61 20 DTR Port 6
20 22 RI Port 2 47 22 RI Port 6
10 2 TxD Port 3 64 2 TxD Port 7
56 3 RxD Port 3 27 3 RxD Port 7
14 4 RTS Port 3 60 4 RTS Port 7
57 5 CTS Port 3 45 5 CTS Port 7
38 6 DSR Port 3 26 6 DSR Port 7
74 7 Signal Gnd Port 3 78 7 Signal Gnd Port 7
18 8 DCD Port 3 6 8 DCD Port 7
52 20 DTR Port 3 1 20 DTR Port 7
19 22 RI Port 3 7 22 RI Port 7
Pin 67of the 78 way connector is not used. Pins 65, 66, 68, 69 and 70 are Signal Ground.
Pins 1, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 23, 24 and 25 of each 25 way connector
are not used.
The cable shields and connector metal bodies should be connected.
1
21
40
60
20
39
59
78