How do I wire a terminal or modem to an ETSUF/EPSUF terminal server?

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Below are the pinouts for RJ12/MMJ to DB25 and RJ12/MMJ to DB9 for terminals and modems. Please note the use of a ROLLED serial cable between the ETS/EPS to the adapter.

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                         ETS/EPS Serial Pinouts Terminal or Printer
ETS/EPS       Cable                  Adapter

RJ12         (Rolled)          RJ12            DB-25    Signal

DSR 6    6--------------1       1---------------20      DTR

RX+ 5    5--------------2       2---------------2       TXD

RX- 4    4--------------3       3-----|         7       Signal Ground

TX- 3    3--------------4       4-----|---------7       Signal Ground

TX+ 2    2--------------5       5---------------3       RXD

DTR 1    1--------------6       6---------------6       DSR
              Cable                   Adapter

RJ12/MMJ     (Rolled)          RJ12            DB-9    Signal

DSR 6    6--------------1       1---------------4       DTR

RX+ 5    5--------------2       2---------------3       TXD

RX- 4    4--------------3       3-----|         5       Signal Ground

TX- 3    3--------------4       4-----|---------5       Signal Ground

TX+ 2    2--------------5       5---------------2       RXD

DTR 1    1--------------6       6---------------6       DSR



                    Modem=====ETS/EPS
Cable       Adapter

RJ12       (Rolled)            RJ12           DB-25     Signal

DSR 6    6--------------1       1---------------6       DSR

RX+ 5    5--------------2       2---------------3       RXD

RX- 4    4--------------3       3------|        7       Signal Ground

TX- 3    3--------------4       4------|--------7       Signal Ground

TX+ 2    2--------------5       5---------------2       TXD

DTR 1    1--------------6       6---------------20      DTR
Cable       Adapter

RJ12/MMJ   (Rolled)            RJ12           DB-9      Signal

DSR 6    6--------------1       1---------------6       DSR

RX+ 5    5--------------2       2---------------2       RXD

RX- 4    4--------------3       3-----|         5       Signal Ground

TX- 3    3--------------4       4-----|---------5       Signal Ground

TX+ 2    2--------------5       5---------------3       TXD

DTR 1    1--------------6       6---------------4       DTR


When looking at the RJ12/MMJ socket with the notch for the locking tab facing down the pins are numbered 1-6 left to right
                          123456

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[Originally Published On: 08/19/1999 11:22 AM]