Pinout for IBM p/n 13H7674


I managed to get a hold of an older IBM Point of Sale (POS) at one time, an older system. It consisted of the main system, a cash drawer, CRT screen, printer and keyboard. The keyboard is an IBM p/n 92F6271. To connect all of the peripherals, IBM seems to have obsesively used these proprietary connectors that look like overgrown RJ-45. However, the cable used to connect the keyboard looked like it would connect to a standard PS/2 PC socket. The cable has an IBM part number of 13H7674. Here is a picture of what the cable looks like.
[picture of the ends of IBM 13H7674]

Here's another comparision of how IBM's connector compares to a standard RJ-45 plug.
[picture of an RJ47 plug and IBM's special RJ45-looking plug]


Given that, if you have one of these keyboards and would like to use it on a PC, here's the pinout of the cable: 

          _.-'..`-._         _________________
        .'          `.      |                 |
       /   5  ||  6   \     | | | | | | | | | |
      |       ||       |    | | | | | | | | | |
      |  3          4  |    |                 |
      |                |    | 1             8 |
       \    1    2    /     |                 |
        `._        _.'      | ==============  |
           `-....-'         | ==============  |

                               AMP branded
        PS/2 Male Plug       RJ-45ish looking
                              male connector



                      ,--------------1
                      |
             1-----,  |   ,----------2
                   |  |   |
             2-X   |  |   |  ,-------3
                   |  |   |  |
             3------)--)--+  |     X-4
                   |  |   |  |
             4------)--)---)-+     X-5
                   |  |   |  |
             5------)-'   `---)------6
                   |         |
             6-X   |         `-------7
                   |
                   `-----------------8


              1-------------->8
              2---NC
              3-------------->2,6
              4-------------->3,7
              5-------------->1
              6---NC
                         NC---4,5

All picture are my own. Various pieces of information are copyrighted by their owners. This web page copyrighted (c) 2009 by Curtis Brown <mrbrown8@juno.com> .