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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

247.0. "DECagent can't go into console mode, HELP !!!!" by HOO78C::TURHAN () Mon May 24 1993 03:47

    Hi,
    
    I have a DECagent90 running x1.77 code and with the recent hubwatch
    software I attemted to reload the latest kits, unfortunately I've
    discovered that I can not go into the console mode with "CTRL-I" any
    more. Tried several combinations but no hope.
    
    Is this something known ? or is my agent broken down. Any tips on how
    to go into the console mode when CTRL-I during power up does not work.
    
    Needless to say, there is a demo to a major customer this week.
    
    Regards,
    
    Tankut
    
T.RTitleUserPersonal
Name
DateLines
247.1swap hardwareGIDDAY::DRANSFIELDMike Dransfield, Sydney RSSGMon May 24 1993 21:297
    re; .0
    Have you tried resetting the DECagent?
    Hold in the recessed switch and power cycle.
    If it still doesn't work, then swap the hardware.
    
    I have seen this problem a couple of times.....
    Mike
247.2HOO78C::TURHANTue May 25 1993 03:558
    
    I have tried almost all possible combinations, I think we need a new
    hardware.
    
    Thanks,
    
    Tankut
    
247.3Some thoughtsQUIVER::GAUDETTue May 25 1993 13:098
    Check the terminal settings (8-bit, no parity, one stop bit, 9600 baud).
    You have to press CTRL-I before the second LED comes on in order to get
    into CCI.  May I ask why you need to get into CCI?  If your agent is
    running an experimental version of code that is later than X1.69 you
    can upgrade to the latest available without going through the two-step
    load process.
    
    ...Roger...
247.4how reliable is the DECagent 90 ?HOO78C::TURHANTue Jun 01 1993 08:5518
    Hi,
    
    Do you mean the NDU when you say without going over the two step
    loading process ?
    
    By the way I started having some doubts about the quality of the
    DECagent. The one I mentioned first time turned out to be defective, I
    got a brand new one from Field service, which turned out to be "dead on
    arrival" and now I got the third box seems to be running for the time
    being.
    
    Are there any mtbf figures for these boxes or are there any known
    reliability problems ?
    
    Regards,
    
    Tankut
    
247.5DECagent 90 seems to have a very low MTBF!CSC32::B_GOODWINTue Jun 01 1993 10:277
I have seen several notes in this conference with concerns about the reliablity
of the DECagent 90. Well, now the agent I have in my lab has also died. I've had
it for about a month. I think someone from engineering should be looking in to 
this.

Brad Goodwin
CSC/CS Network Support
247.6ME tooBSS::AMBERMark Amber, CXO3 LAN Mgr. (DTN)592-4645Wed Jun 02 1993 16:364
Me too.

Out of the eight DECagent90's that I have installed, two of them have
already needed to replaced by Field Service (under warranty).
247.7Please send me your dead agentsEMDS::SEAVERBill Seaver, HUBwatch MktgThu Jun 03 1993 00:006
    Would you be kind enough to send me the dead DECagents?  I will have
    CSSE look into them and see what the problem is.  If you need me to
    replace them with good agents when you send me the bad ones, let me
    know.  I want to get to the bottom of this.
    
    Thanks.
247.8Bad DC-DC converter in DECagentNAC::SEAVERBill Seaver, HUBwatch MktgMon Nov 22 1993 21:2742
    There seems to be a bad DC-DC converter in the DECagent...
    
From:	NPSS::HOSKING      19-NOV-1993 14:10:52.68
To:	BIGELOW
CC:	WONKKA,HOSKING
Subj:	failed DENMA's returned for evaluation

Michele

Re: Failed DENMA's returned for Evaluation:

	Per your request here is a brief description of the 3 failed units 
        received from Art Filz.

	o  Two of the units had defective EIA DC-DC converters 20-32787-01.
           Replacing the converters restored the units to functionality.

	o  The third had one of the Flash IC's slightly charred... I did not
           diagnose that unit further.


	Additionally, I had another "interesting" unit returned from Bill
        Seaver, also with a bad EIA converter.  Replacing the converter did not
        restore functionality, and the LED's behaved strangely.   Diagnose
        shows that the 5170A octal driver has apparently been replaced with an
        incorrect IC;  which explains the LED behavior.  I have not done
        further work with this unit.


	Based on my analysis/evaluations,  the principal reliability item is
        the above converter.

	Component engineering is currently negotiating reliability improvements
        with the two vendors who supply Digital with the DC-DC converter,
        20-32787-01.

	Let me know if I can be of further assistance.

        Cheers!
	 
        Terry