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Conference netcad::hub_mgnt

Title:DEChub/HUBwatch/PROBEwatch CONFERENCE
Notice:Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7
Moderator:NETCAD::COLELLADT
Created:Wed Nov 13 1991
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:4455
Total number of notes:16761

489.0. "grounding of the 10BaseT repeaters for the 900 HUB" by ZUR01::SCHNEIDERR () Thu Nov 11 1993 02:26

We need to know how the shieldingconzept is for our 10BaseT repeaters for the
DEChub900.

- how are the RJ45 shields connected together on one module?
- how are the shields from the different modules connected together?
- how are the shields connected to the ground?	
		- chassisground of the hub (mounting-screw or bracket?
		- chassisground of the module (mounting-screw or bracket)?
		- ground pin of the powerconnector?

We need ths knowledge because different customers have different grounding ans
shielding inviroments here in Switzerland and therefore you need to know where
is the shield connected, where is the ground connected......


Thanks for answers


Roland
T.RTitleUserPersonal
Name		DateLines
489.1here's what I got from EngineeringDELNI::GIUNTAThu Nov 11 1993 12:4834
I asked Engineering for this information, and this is what I got:


- how are the RJ45 shields connected together on one module?
	
	> they are tied together by common etch and they are also tied to
	the conductive surface of the plastic box - chassis gnd.
	
	
- how are the shields from the different modules connected together?
	
	> the module is  attached  to  the  hub chassis via finger stock.
	This common chassis connection makes  all  the  shields  tied  to
	earth gnd.
	
- how are the shields connected to the ground?	
		- chassisground of the hub (mounting-screw or bracket?
			
			> Finger stock
			
		- chassisground of the module (mounting-screw or bracket)?
	
			> shielded connector housing (ears)		
	
		- ground pin of the powerconnector?
	
			> hub conductive coating is tied to ground pin of
			the powerconnector


If you need more information, let me know.

Cathy
489.2For the moment o.kZUR01::SCHNEIDERRMon Nov 15 1993 05:036
Cathy,

Thakns for the answers. For the moment thats all. Maybe we will have other
questions like this during the project.

Regards Roland