Not convinced you're reading the replies correctly.
The LEDS are optional/not compulsory. But, if you have them on, they stay on, set or unset.
Their purpose is a bit of a gimmick, feelgood factor, that type of thing. Helps show in the dark that the premises have/pretends to have an alarm.
EWD (bellbox) leds are allowed to flash constantly.
What you don't do is have them indicate set or unset.
eg, only flashing when the panel is set.
The leds are seperate to the strobe, which can/is programmed for different options.
I fit them by the shitload. And yes, for CCTV.Not had a problem with them for CCTV or other functions we use them for.
The firewalls on them can be a pain though.
I'll pm you a script in the morning you might want to try.
You'll need telnet though.