Many thanks bye bye
anyone can confirm that the followed wiring diagram are correct?
Pin # Label Description
TIP TXD CAT DATA output from SM
RING1 RXD CAT DATA input to SM
RING2 RTS +12V output, max.1mA. Connected to input power via 10K ohm resistor.
SLEEVE GND Connected to the system ground and case.
i don't undestand how to connect the RING2.. i need to put one resistor in the cable?
a) on flex/smartsdr configure a CAT cable (see smartsdr cable management section)
b) Station Master JUMPER SETUP : the RS 232 LEVEL is required (see manual extract and picture below)
b) the CAT connection cable from RS232 to Station master , see below