Sgiii + Ness R12/r15 Extra Pirs

[7polly7777]

Hi,

I'm trying to add extra Ness R12/R15 PIRs and a couple of new keyfobs (RK3) to my current FAI SGIII (Ness) control panel that is running v3.2 of the firmware. It currently runs 2xPIRs (from circa 1996??), 2xold-style keyfobs and 2xRK3-style keyfobs.

When I blank the control panel all of the old hardware is easily reprogrammed into the system and the reprogramming appears only to be possible in encrypted mode (attempts to use unencrypted mode give the failed chirp "beep, beep, brrr").

I cannot get the control panel to add either the keyfobs or any of the new R12/R15 PIRs (gives the failed beep, beep, brrr chirp). What is the likely solution to this problem??

Thanks in advance

Matt