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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

2821.0. "MultiStack System and AUI" by LEMAN::GAILLARDON () Mon Oct 02 1995 10:23

        
        
        Going trough the documentation about the new MultiStack System, I 
        understand that there are two types of stacking units:
        - DETRX, with no AUI capability on the rear side, AND NO + 12V
        - DETAX, with AUI capability on the rear side, AND WITH 12V
        
        The problem is that the products with Front Panel AUI, ie DEWGB, 
        DEWGF, DEFAR, DEFMI are proposed as stackable units using a DETRX,
        part number being DExxx-Sx...(S = DETRX )
        (the front AUI port will not work ...DETRX = NO 12V). This is a 
        little bit confusing and may cause some config errors..!!
        
        A MultiStack System configuration where an AUI port of the above 
        module DEFMI is to be used, must be made of :
        DETAX-Sx + DEFMI-MA,  until an DEFMI-Ux exists and providing that
        the 12V of the DETAX feeds the AUI port of the module....correct..??
        
        Cheers, Robert.

T.R	Title	User	Personal Name	Date	Lines
2821.1	NO PROBLEM	CONSLT::BUZZELL		`Mon Oct 02 1995 10:31`	7
	The part numbers are correct. The only module that supports the DETAX is the DETML. The power supply supplied with the DETRX will provide the appropriate power to the modules. DON'T create a problem wher none exists.
2821.2	<still confused>	LEMAN::GAILLARDON		`Mon Oct 02 1995 10:46`	8
	Glad to know...it's just a matter to have a clear understanding without creating unnecessary problems In the manual EK-DETXX-IN.A01, page B-3, Electrical Spec Stackable Backplane the DETRX is stated as 0.00A @12V, 0.07A @ 5V, 0.35W. The DETAX is stated as 0.07A @5v, 0.50A @12V... then the conclusion that there was no 12 V on the DETRX. Robert.
2821.3		NETCAD::HERTZBERG	History: Love it or Leave it!	`Mon Oct 02 1995 11:15`	8
	I can see how the docs are somewhat confusing. The 12V current you stated in your previous reply is for 12V current used by the rear cover. In the case of the DETRX, we were just saying the rear cover uses no 12V current. In the case of the DETAX, we were just saying it could use as much as 0.5A, since that's the most a plugged-in MAU could possibly use. We weren't specifying the power delivered to the module itself. Both the DETRX and the DETAX make the 12V supply available to the plugged in module.
2821.4	tahnks..	LEMAN::GAILLARDON		`Mon Oct 02 1995 11:36`	1
	Very clear now...Thanks