Cable

The cable assembly that comes with the AST4Port card has five plugs. One male 37 pin sub-D connector (J5) to connect it to the card, and four male 25 pin sub-D connectors (J1 to J4). The 25 pin connectors are compatible with the standard pc serial ports.

The wiring seems a bit strange when you look at pin numbering, but becomes quite obvious when you look at the actual pin placing.

The original cable assembly consists of four cables ~35 cm each.

J5 J1   J5 J2   J5 J4   J5 J3 function
19 2   33 2   10 2   24 2 TD
37 3   14 3   28 3   5 3 RD
18 4   32 4   9 4   23 4 RTS
36 5   13 5   27 5   4 5 CTS
17 6   31 6   8 6   22 6 DSR
35 7   12 7   26 7   3 7 SG
16 20   30 20   7 20   21 20 DTR
34 8   11 8   25 8   2 8 DCD
15 22   29 22   6 22   20 22 RI

Beware! preliminary version

Latest update: 2010-07-14

fjkraan@electrickery.nl