Splitter Cable #3107 7006/7009/7010
P/N 31F4590
                          System End - Female DB-25

                         13_______________________1_
                        | o o o o o o o o o o o o o |
                         \ o o o o o o o o o o o o /
                          25 ___________________ 14
                                      |
                    __________________|__________________
                   |                                     |
      _1___________|___________13           _1___________|___________13
     | . . . . . . . . . . . . . |         | . . . . . . . . . . . . . |
      \ . . . . . . . . . . . . /           \ . . . . . . . . . . . . /
       14_____________________25             14_____________________25
            S1 male DB-25                          S2 male DB-25

            _________________________________________________________________________
           |TD|RD|RTS|CTS|DSR|GND|CD|DTR*|DTR|RI|TD|RD|RTS|CTS|DSR|GND|CD|DTR*|DTR|RI|
           |__|__|___|___|___|___|__|____|___|__|__|__|___|___|___|___|__|____|___|__|
    System | 2| 3| 4 | 5 | 6 | 7 | 8| 11 | 20|22|14|16| 19| 13| 15| 7 |12| 24 | 24|17|
    Signals|__|__|___|___|___|___|__|____|___|__|__|__|___|___|___|___|__|____|___|__|
           | 2| 3| 4 | 5 | 6 | 7 | 8| 11 | 20|22|  |  |   |   |   |   |  |    |   |  |
           |__|__|___|___|___|___|__|____|___|__|  |  |   |   |   |   |  |    |   |  |
                                                | 2| 3|  4|  5|  6| 7 | 8| 11 | 20|22|
           <----------- SERIAL PORT S1 -------->|__|__|___|___|___|___|__|____|___|__|

                                                <--------- SERIAL PORT S2 ----------->

 * Means that this signal is not commonly used this way in the EIA-232D
   standard, however the splitter (fan-out) cable is wired in this manner.