How to make one serial cables to manage TC?

nimysun

Cabling TC and serial port
The pinout of the MicroAnnex XL ports can be found
here
. Looking at the RJ-45 serial ports on the Annex, pin 1 is on the left. See
this page
for diagrams illustrating the pin numbering. I use standard Ethernet patch cables and RJ-45 to DB-9 or RJ-45 to DB-25 adapters to connect my computers to the Annex. When you buy the RJ-45 to DB-* adapters they will generally come "un-pin'd", leaving it up to you to pin them out how you want them. Below is the complete pinout to make fully formed
null-modem
adapters. The ones highlighted in red I don't do because they require connecting one pin on one side to two pins on the other, which is difficult in an RJ-45 to DB-* adapter. For most applications the lack of these connections won't matter.
Annex signal     Annex pin     DB-9     DB-25     Computer signal
    RTS              1           8        5           CTS
    DTR              2          6,1      6,8        DCD,DSR
    TXD              3           2        3           RXD
    DCD              4           4        20          DTR
    RXD              5           3        2           TXD
    GND              6           5        7           GND
    DSR              7           4        20          DTR
    CTS              8           7        4           RTS


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