Need pin out for null cable for KX-TD1232 db25 to db9 FM

[winmar]

Can someone post the pin out for db25 to db9 female to program KX-TD1232 via my laptop. or db25 to RJ-45. thanks alot Mat Ray ???????? anyone else.

 

[mrpeabody]

Pin1 : FG
Pin2 : TXD
Pin3 : RXD
Pin4 : RTS
Pin5 : N/U
Pin6 : DSR
Pin7 : SG
Pin8 : DCD
Pin9-19 : N/U
Pin20 : DTR
Pin21-25 : N/U

 

[winmar]

is The Following correct mrpeabody ?



DB25 TO DB9

Pin1 : FG ----Pin1
Pin2 : TXD ----Pin2
Pin3 : RXD ----Pin3
Pin4 : RTS ----Pin4
Pin5 : N/U N/U
Pin6 : DSR ----Pin6
Pin7 : SG ----Pin7
Pin8 : DCD ----Pin8
Pin9-19 : N/U ----Pin9 and 19
Pin20 : DTR ----Pin ?
Pin21-25 : N/U N/U

 

[mrpeabody]

No, man, a DB9 has different pinouts than a db25, and also it needs to have the transmit and receive pins reversed (hence "null-modem&quot. I did a search of "db9 + pinout" on google and here's what I found:

Pin2: RXD
Pin3: TXD
Pin4: DTR
Pin5: SG
Pin6+1: DSR+CD
Pin7: RTS
Pin8: CTS

The CTS and RTS are supposed to be flipped too, but I dont see where the RTS goes, since there is no CTS on the DB25. What I do know is these are for flow control which, if disabled in hyperterminal, don't make a difference. These would be the ones you would omit if manufacturing a RJ45-style adaptor.

 

[cwc3]

go to radio shack and a modem cable and a null modem adpapter and yu are ready to program!!