0B05 is one every field tech knows, it’s how you check relative signal strength. 
A Zigbee Pro reference should have everything except ZLL. Try NXP’s chip documentation, that’s usually good.
edited to add Here, try this one:
0B05 is one every field tech knows, it’s how you check relative signal strength.
A Zigbee Pro reference should have everything except ZLL. Try NXP’s chip documentation, that’s usually good.
edited to add Here, try this one: