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: http://www.apo.nmsu.edu/Telescopes/RJ11_Serial/Standard_USOC_Harmonica.html
Дата изменения: Wed Oct 6 21:55:50 2004 Дата индексирования: Sat Apr 9 23:16:56 2016 Кодировка: Поисковые слова: cygnus loop |
Each harmonica consists of eight 6-wire 6-position RJ11 jacks connected to one 50-pin male Telco connector. Note that a patch panel simply consists of a set of harmonicas mounted in one panel. USOC is a common way of wiring the RJ11 jacks to the Telco connector, and it is the standard we use at APO. Always buy USOC harmonicas and patch panels for RS-232 distribution!
Signal |
Male Telco Connector Pin |
||||||||
Jack #1 |
Jack #2 |
Jack #3 |
Jack #4 |
Jack #5 |
Jack #6 |
Jack #7 |
Jack #8 |
||
1 |
Tx Flow |
28 |
31 |
34 |
37 |
40 |
43 |
46 |
49 |
2 |
Tx |
27 |
30 |
33 |
36 |
39 |
42 |
45 |
48 |
3 |
Tx Gnd |
1 |
4 |
7 |
10 |
13 |
16 |
19 |
22 |
4 |
Rx Gnd |
26 |
29 |
32 |
35 |
38 |
41 |
44 |
47 |
5 |
Rx |
2 |
5 |
8 |
11 |
14 |
17 |
20 |
23 |
6 |
Rx Flow |
3 |
6 |
9 |
12 |
15 |
18 |
21 |
24 |
Note that Telco pins 25 and 50 are not connected
RJ11 Pin Numbers