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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

3035.0. "MultiStack AUI or Thinwire ?" by ZPOVC::CSNAQS () Wed Dec 06 1995 21:25

    Hi all,
    
    Sorry if it is a dumb question. As I am very new to Multistack System
    and would like to clarify some of my doubts.
                                                                                
    
    As I know there are two types of stacking unit where one has AUI
    port(DETAX) and the other (DETRX) don't. 
    
    But what happen if have DETAX and I need to connect and stack the
    DECrepeaters,DECbridges,DECserver using the AUI cable instead of
    thinwire. As I know, the DETAX provided me with the AUI port which I
    can connect to the backbone of the network but how can I stack the
    rest? Do I use thinwire, UTP on the existing port of the DECrepeater?
    
    Thanks
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3035.1NETCAD::THAYERThu Dec 07 1995 09:267
	Thinwire for stringing all the units in the string.
	In fact when order as stackable units they come with a 
	short piece of thinwire coax for the intermodule
	connection.

	If you wish, AUI through the DETAX to a backbone connection.
3035.2NETCAD::HERTZBERGHistory: Love it or Leave it!Thu Dec 07 1995 09:486
    -.1 is correct... the thinwire is _always_ used to connect the modules
    in the stack together.  
    
    The AUI on the DETAX can be used for a backbone connection or any other
    purpose you like, but remember that it works ONLY with the DECrepeater
    90T-16.
3035.3ZPOVC::CSNAQSThu Dec 07 1995 21:119
    Sorry for my ignorance, as you have mentioned that DETAX works ONLY with
    DECrepeater 90T-16, then if I were to connect the AUI of the DETAX to my
    network backbone, what heppen if I need to stack two or more DECrepeater 
    90T-16 ? Do I link them by using thinwire but I have heard from Digital
    that you can't simultaneously using both thinwire and AUI cable.
    
    Please advise.
    
    Thanks
3035.4Wrong ModuleCONSLT::BUZZELLFri Dec 08 1995 09:507
    
         The information on not using the ThinWire and AUI simultaneously
    is applicable to the DECrepeater 90TS not the 90T-16. The 90T-16 was
    designed to support the AUI to the backbone and ThinWire to the stack
    at the same time.
    
    
3035.590T16 *AND* 90TS do it don't they?PTOJJD::DANZAKPittsburgher �Sun Dec 10 1995 08:4422
    I thought that the 90-T16 *AND* the 90TS both supported AUI from the
    back connections?  The 90TS has a current shipping stand-alone variant
    that has the AUI on the plastic cover.
    
    So, is it a fair statement to say both the 90TS and 90-T16 support the
    AUI stacking unit?
    
    One other thought - the only connects that matter are the MANAGEMENT
    BUS connects.  As far as Ethernet connectivity - as long as you are on
    the LAN, it doesn't matter if it's via the 10-2 or AUI or front etc.
    
    i.e.
    
    -----Fiber-----AUI/Fiber/convert>90T16--
                                     90TS--|<---connect via front
                                     .x
                                     .x<--other modules daisy chained
                                          via thinwire
    (the above would do a cheaper fiber connect at the expense of two
    repeater ports...)
    
    j
3035.6To Each its OwnNETCAD::HERTZBERGHistory: Love it or Leave it!Mon Dec 11 1995 14:0612
    >>  So, is it a fair statement to say both the 90TS and 90-T16 support 
    >>  the AUI stacking unit?
    
    No, this is incorrect.  It really is true that the DETAX AUI stacking
    rear cover is only supported with the 90T-16.  
    
    While it is true that the 90TS has an available AUI rear cover, this
    rear cover is not part of the Multistack system.  And no, the 90TS' AUI 
    rear cover is not supported on the 90T-16.
    
    In summary, both the 90TS and the 90T-16 has its own AUI rear cover 
    supported only for that module.
3035.7More on the DETAX ...SNOFS1::KHOOJEANNIEHumpty Dumpty was pushedMon Dec 11 1995 23:499
    
    Given that the AUI only works for the T-16, is it OK to use a DETAX with
    any other 90 module for power & management?
    (e.g. like any 900 module can use a DEChub ONE-MX)
    
    What happens with the AUI port in HUBwatch?
    
    Jeannie
    
3035.8OK FineNETCAD::HERTZBERGHistory: Love it or Leave it!Tue Dec 12 1995 09:382
    Yes, it's OK to use the DETAX with any other 90 module for power and
    management.
3035.9No 90TS/AUI in DETAX?PTOJJD::DANZAKPittsburgher �Mon Dec 18 1995 21:326
    You mean that if I use a 90TS in the DETAX with an AUI that the aui
    will not work????
    
    R u sure?
    j
    
3035.10Haven't we discussed this before in here??NETCAD::HERTZBERGHistory: Love it or Leave it!Tue Dec 19 1995 09:364
    I'm sure it's not designed to work that way and is not supported.  
    I am not sure whether or not it will appear to "work."
    
    							Marc
3035.11Not crazy!NETCAD::HERTZBERGHistory: Love it or Leave it!Tue Dec 19 1995 09:571
    Yes, Marc, this has been discussed before in note 2691.
3035.12Take some vacation time Marc! :-)NETCAD::BATTERSBYTue Dec 19 1995 10:594
    Talking to oneself in a notes file is a sure sign of needing
    some vacation time.
    
    Bob :-)