initial d stage 7 arcade card reader db9 cable help

[drunkencat]

hey guys i was wondering if any one has a initial d stage 4-8 cab so thay can help me find out the correct wiring so i can build a data cable for my striped down id7 cab im building so far i got everything up and running just need to build com cable

let me know thanks

[drunkencat]

figured out problem theres 4 wires u need to cross in order for cable to work looks like u swap like this
pinout

reader din9 pc
txd---------------rxd
rxd---------------txd
rts----------------cts
cts----------------rts
ground-----------ground