Axis intersection and Datum with brackets

[TheDodgy101]

Hello,
Can someone explain the axis intersection symbol present in NX9 to me or point me to some literature about it? i could not find any information online.
I also have a doubt about the attached image. They have given a datum with brackets (neither NX9 nor CATIA accept it so I am assuming it's non standard) But is it legitimate GD&T? What does it mean?

 

[ewh]

It seems that the datum is to be considered reference, but does not follow Y14.5 in that you can repeat a datum as many times as required without making it reference.

“Know the rules well, so you can break them effectively.”
-Dalai Lama XIV

 

[CheckerHater]

Also per Y14.5 they don't use numerals for datum features.

Could be lame attempt to create datum target?

Either way, right now it doesn't mean anything.

 

[TheDodgy101]

Thanks for the replies
They have used the datum as a regular datum and even called it in several FCFs, and there are other instances where they have used datum target notations for datum targets, so I guess that's not the case here.

Can someone shed some light on the new symbol in NX9 (Axis intersection)? I have attached a screenshot for those not familiar with NX9. All of us are puzzled here.

 

[CheckerHater]

Is your CAD system set up to regional standard like Japanese JIS or Russian GOST? I know you can do that in SolidWorks.

 

[TheDodgy101]

Yes, we use DIN standards, if it matters.

 

[CheckerHater]

I checked with our SolidWorks station, the "axis intersection" symbol only appears when system is set to Russian GOST standard. I figure it is different in NX.

 

[CheckerHater]

After searching google for "axis intersection gost standard" I managed to find some basics on page 77 of this document:

http://www.slideshare.net/brajaybr/basics-of-interchangeability

For whatever it is worth...