45
(d) Crimp and solder a terminal onto each end of a 2 inch length of
hookup wire. You will use this wire as a jumper in a following
step.
(e) As shown above, identify one 5-pin Molex .100” nylon
connector housing (Mouser p/n 538-22-01-2057) and five crimp
terminals (Mouser p/n 538-08-52-0123). Crimp and solder a
terminal onto the wires at the other end of your cable. (Note: if you
are using a ready-made serial cable, then crimp terminals onto the
wires coming from pins 2,3,4,5 of the DB-9 connector. Use an
ohmmeter to verify the pin numbers. Twist and solder together the
wires coming from pins 6 and 7.)
Programming Cable Wiring Diagram
(f) Install the terminals in accord with the above wiring diagram.
The jumper wire you prepared in step (d) goes between pins 6 and
7 on the DB-9 connector. Note that the numbers are as viewed
from the rear side of the connectors, e.g., the side that the cable
emerges from.