Ajax/SIA setup issue

Hello, I’m trying to get Ajax system sending its status code without success so far. I did a fresh install of HA and added SIA alarm extension as instructed in the documentation. I have a Hub+ running 2.12 firmware. 4 groups (that I guess are zones in HA) are declared during setup phase. Ajax app has been setup accordingly. Status returned is: unavailable. In order to troubleshoot I had a look with a TcpListener tool. Hub keeps sending (only time stamp changes) same status even when alarm is activated and some sensors are trigerred. CCC is indeed the account number. "NriO/RP0000 status is not related to anything described in Ajax documentation

"
"	A	F	4	A	0	0	3	9	"	S	I	A	-	D	C
S	"	0	0	9	3	L	0	#	C	C	C	[	#	C	C
C	|	N	r	i	0	/	R	P	0	0	0	0	]	_	1
0	:	2	2	:	2	8	,	1	2	-	0	6	-	2	0

I read the SIA protocol description https://www.securityindustry.org/wp-content/uploads/2017/10/dc09_r2021_20201027.pdf as well as the post related to SIA development

I get the feeling that issue on alarm side. However I don’t see why it is not working as expected. Thank you in advance for any help on this matter.