> so that would be something like this...

     The DIN-8 serial port connectors on the Indigo, Indy, Indigo2, Challenge
     S, Challenge M, Power Challenge M, and the MENET 4-Enet, 6-serial board
     (XT-FE-4TX-6A) have the following pin assignments.

                                     ---------
                                    / 8  7  6 \
                                   (  5  4  3  )
                                    \  2   1  /
                                     ---------

                     _4D_Compatible_Pin_Assignments_(RS-232)__
                      Pin   | Name    | Description
                     _______|_________|_______________________
                       1    | DTR     | Data Terminal Ready
                       2    | CTS     | Clear To Send
                       3    | TD      | Transmit Data
                       4    | SG      | Signal Ground
                       5    | RD      | Receive Data
                       6    | RTS     | Request To Send
                       7    | DCD     | Data Carrier Detect
                       8    | SG      | Signal Ground

this should "just work" if there's no keyboard attached; it always has for
me, though if memory serves there's a certain prom setting that means "use
graphics even if no keyboard found", legacy of the 75-foot keyboard/monitor
extension cable.