2nd RS-232 in ServoPod

[jsilva]

Hi,

I'm trying to wire a 2nd RS-232 port (J2) onto a DB9 serial connector, in order to connect it either to a PC or a GPS receiver...

My 1st attempt would be:

Rx (DB9 pin2) --- +RCV (J2 pin9) ?
Tx (DB9 pin3) --- +XMT (J2 pin1) ?
DTR (DB9 pin4) --- ??
GND (DB9 pin5) --- GND (J2 pin5)
DSR (DB9 pin6) --- ??
RTS (DB9 pin7) --- ??
CTS (DB9 pin8) --- ??

What should I do with the "??" pins? Is there some loop wiring to be done in order to spoof the RS-232?

Thanks,
Joao

[nmitech]

The correct connection should be,

Rx (DB9 pin2) --- SOUT1 (J2 pin9)
Tx (DB9 pin3) --- SIN1 (J2 pin7)
DTR (DB9 pin4) --- No Connection
GND (DB9 pin5) --- GND (J2 pin5)
DSR (DB9 pin6) --- No Connection
RTS (DB9 pin7) --- No Connection
CTS (DB9 pin8) --- No Connection