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Conference npss::gigaswitch

Title:GIGAswitch
Notice:GIGAswitch/FDDI Jan 97 BL3.1 914.0 documentation 412.1ion 412.1
Moderator:NPSS::MDLYONS
Created:Wed Jul 29 1992
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:995
Total number of notes:4519

118.0. "SNMP (cabinetTemperature) temperatures for values?" by GUCCI::DMCCLOUD (Dennis McCloud - SOA ANC) Thu Sep 30 1993 20:50

T.RTitleUserPersonal
Name
DateLines
118.1SNMP cab temp made easySCHOOL::WERTHTue Oct 05 1993 11:0910
118.2Fault light @ 35 and shutdown at 40 deg C?GUCCI::DMCCLOUDDennis McCloud - Eastern Client/Server ConsultantTue Oct 05 1993 20:4914
118.3Q> temperature fault lightTKOV51::HAYAKAWAKouhei Hayakawa, NPB/MS, Osaka HUB6FFri Mar 28 1997 06:2933
    Can someone please teach me.
    I have a question about temperature fault light.
    Topic 118 says that it lights on when it is over 35 deg C. 
    But fault light of my customer's GIGAswitch/FDDI don't light off
    when the temperature falls to under 35 deg C. 
    Now the temperature is 32 deg C. 
    Why doesn't it light off?
    
    Kohei
    

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���� 118.2   SNMP (cabinetTemperature) temperatures for values?          2 / 2
GUCCI::DMCCLOUD "Dennis McCloud - Eastern Client/Server" 14 ��  5-OCT-1993 19:49
                -< Fault light @ 35 and shutdown at 40 deg C? >-
--------------------------------------------------------------------------------
    Thank for the response.  The customer wanted to know the values that
    you supplied.  However, it would be nice to know all the possible
    values including the low and excessively low.  Eventually some
    customer will ask.
    
    Also, I assume that the temperature fault light on the front comes
    on when we reach 35 deg C and the system shuts down at 40 deg C unless
    you tell the system to ignore the temperature condition.
    
    Is this true?
    
    Thanks,
    
    	Dennis



118.4NPSS::MDLYONSMichael D. Lyons DTN 226-6943Fri Mar 28 1997 09:4514
These are the correct values:
    
cabinetTemperature

normal(1)		50 - 95 F    10 - 35 C
high(2)			95 - 110 F   35 - 43 C
excessivelyHigh(3)	> 110 F      > 43 C     causes a shutdown 
low(4)			35 - 50 F    2 - 10 C
excessivelyLow(5)	< 35 F       < 2 C      causes a shutdown  
    
       How are you measuring the temperature?  The GIGAswitch/FDDI measures
    the temperature inside the chassis.
    
    MDL
118.5TKOV51::HAYAKAWAKouhei Hayakawa, NPB/MS, Osaka HUB6FFri Mar 28 1997 11:0227
>       How are you measuring the temperature?  The GIGAswitch/FDDI measures
>    the temperature inside the chassis.

	I measured on and under the GIGAswitch/FDDI.
    
           32 deg C (input air)
	_______________
       |               |
       |               |
       |               |
       |  linecard     |
       |               |
       |               |
       |---------------|
       |   Fan Tray    |
       |---------------|
       |  Power Unit   |
       |               |
       |_______________|

	   34 deg C (output air)

	In this case, is the GIGAswitch/FDDI nomal status?
	Or in this environment, do you think the temperature inside 
	the chassis is over 35 deg C?

Kohei
118.6NPSS::MDLYONSMichael D. Lyons DTN 226-6943Fri Mar 28 1997 13:2515
        ...the status is what the PSC says it is.  Since we're only talking
    a difference of a degree or two, I would definitely expect to see it higher
    inside the chassis.
    
        OBM (show box configuration) shows the status, as well as SNMP...
    
        I don't think it's worth investigating myself, since I know it's
    been looked at before, but if you don't have anything better to do,
    just remove the PSC assembly and measure the temperature at the top of
    the PSC opening.  Although removal of the assembly will turn the fans
    on full speed, and affect the air flow, you may still be able to
    measure a difference inside and outside the chassis.
    
    MDL